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Typhoon Ike
Typhoon Ike
Typhoon Ike
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Typhoon Ike (Nitang)
Ike at peak intensity near the Philippines on September 1
Meteorological history
FormedAugust 26, 1984
DissipatedSeptember 6, 1984
Very strong typhoon
10-minute sustained (JMA)
Highest winds165 km/h (105 mph)
Lowest pressure950 hPa (mbar); 28.05 inHg
Category 4-equivalent typhoon
1-minute sustained (SSHWS)
Highest winds230 km/h (145 mph)
Lowest pressure947 hPa (mbar); 27.96 inHg
Overall effects
Fatalities1,474 total
Damage$230 million (1984 USD)
Areas affected
IBTrACSEdit this at Wikidata
Part of the 1984 Pacific typhoon season

Typhoon Ike, known in the Philippines as Typhoon Nitang, was the second deadliest tropical cyclone in the 20th century in the Philippines. Ike originated from an area of disturbed weather southeast of Guam on August 21, 1984, and five days later, developed into a tropical depression. Following an increase in organization, the depression attained tropical storm intensity on August 27. Initially tracking west-southwest, the storm gradually gained strength as wind shear resulted relaxed and Ike became a typhoon on August 30. Continuing to rapidly intensity, Ike turned west and attained peak intensity on September 1, with the Japan Meteorological Agency estimating winds of 170 km/h (105 mph). At around 14:00 UTC that day, Ike made landfall on the northeastern tip of Mindanao. The cyclone emerged into the South China Sea on September 3 as a tropical storm before re-intensifying into a typhoon and moving onshore Hainan. Ike then struck the Chinese mainland as a tropical storm in Guangxi and dissipated on September 6.

During its formative stages, Ike brushed Guam, although its compact size reduced the extent of damage. Typhoon Ike also struck the Philippines a mere four days after Tropical Storm June inundated the northern portion of the Philippines and also was suffering from the nation's worst economic crisis since independence in 1946. It also left a path of destruction in the Philippines that at the time was unparalleled in its modern history. Most of the deaths were in the province of Surigao del Norte, where around 1,000 died, 330 others were wounded, and 80% of structures along with 27 towns were flattened. Typhoon Ike was considered the worst typhoon to affect the province in 20 years. Roughly 90% of homes in Surigao City were leveled, leaving 90,000 individuals homeless. Throughout Negros Island, over 4,000 dwellings were destroyed, resulting in nearly 75,000 people homeless after a river burst its banks. In the province of Bohol, Ike was the deadliest natural disaster in the province's history, with 198 fatalities in addition to 89,000 homes damaged or destroyed. Overall, 1,426 people were killed as a result of the typhoon in the archipelago. At the time, Ike was the deadliest typhoon to hit the country during the 20th century, surpassing the previous record of Typhoon Amy in 1951. A total of 1,856 people were injured. Furthermore, 142,653 homes were damaged and 108,219 others were destroyed. Nationwide, damage was estimated at $230 million, including $76.5 million from crop damage and $111 million from property damage. Following the storm, Philippines authorities initially distributed $4 million in aid but refused international aid. However, authorities reversed its decision on September 8 due to lack of local resources and started accepting foreign aid. In all, over $7.5 million was donated to the country to provide relief.

Ike was the worst tropical cyclone to strike the Guangxi province in China since 1954, where 14 people were killed. Across the country, around 13,000 structures were damaged or destroyed. Nationwide, 46 people were killed and 12,000 ha (29,651 acres) of sugar cane were destroyed. About 1,315,420 kg (2,900,000 lb) of vegetables were lost. Elsewhere, two people were killed and seven were listed missing in Thailand due to flash flooding.

Meteorological history

[edit]
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

The origins of Typhoon Ike can be traced back to an area of disturbed weather first identified as part of the region's monsoon trough southeast of Guam on August 21. Over the next few days, the disturbance failed to develop as a result of inhibiting wind shear which remained over the area. However, the shear quickly abated on August 25, allowing for convection to build and persist over the system's center of circulation;[1] this prompted the Japan Meteorological Agency (JMA) to classify the system at 06:00 UTC on August 26 as a tropical depression.[2][nb 1] Later that day, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert for the system, following a rapid increase in the system's organization.[1] Tracking generally northward, it continued to improve in organization and became more compact,[1] allowing both the JMA and the JTWC to upgrade the system to Tropical Storm Ike on August 27.[4][nb 2]

Ike's track northward brought it 165 km (105 mi) southwest of Guam before the tropical storm stalled and turned towards the west-southwest on August 28 as a result of a subtropical ridge to its north. Initially, persistent wind shear limited intensification,[1] but data from the JTWC suggested that Ike briefly attained typhoon status on August 29.[6] By August 30, an upper-level anticyclone became established over the system, resulting in favorable conditions aloft, and Ike entered a second intensification phase.[1] At midday, both the JTWC and JMA estimated that Ike attained typhoon status.[4] On August 31, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) also monitored the storm and assigned it with the local name Nitang.[7] Now assuming a more westerly bearing, Ike continued to rapidly strengthen;[1] at 12:00 UTC on September 1, the typhoon reached its peak intensity with winds of 165 km/h (105 mph) and a barometric pressure of 950 mbar (hPa; 28.05 inHg) as analyzed by the JMA.[2] Meanwhile, the JTWC estimated maximum intensity of 235 km/h (145 mph).[4]

With maximum intensity, Ike made landfall on the northeastern tip of Mindanao at around 14:00 UTC on September 1,[8] taking 30 hours to track across the southern extent of the Philippines. The cyclone emerged into the South China Sea on September 3, but due to land interaction,[1] both the JTWC and JMA reported that Ike had weakened to a tropical storm upon its emergence.[4] The storm tracked northwestward across the South China Sea over the next few days.[1] Ike regained its former typhoon classification on September 3, according to the JTWC,[6] and on September 4, according to the JMA.[2] Several hours later, data from a Hurricane Hunter aircraft indicated that Ike had developed a 55 km (35 mi) wide eye.[1] The JMA estimated that it reached a secondary peak intensity on September 4 with winds of 165 km/h (105 mph) and a pressure of 955 mbar (hPa; 28.20 inHg), only slightly weaker than its peak strength[4] while the JTWC estimated a secondary peak of 185 km/h (115 mph).[6] The combination of increased wind shear induced by a trough passing to the storm's north and the typhoon's proximity to land caused Ike to weaken. The storm made a September 5 landfall on Hainan as a minimal typhoon. The storm continued to weaken after crossing Hainan, with both the JTWC and JMA estimating that it moved into the Chinese mainland as a tropical storm while it was located 110 km (68 mi) southeast of Nanning.[1][4] Thereafter, Ike quickly weakened inland and dissipated on September 6.[1][4]

Preparations

[edit]

Prior to the typhoon's first landfall, a typhoon warning was issued by the Manila Weather Bureau for the Philippine provinces of Surigao del Norte, Agusan, Leyte, Samar, Camiguin, Bohol, Cebu, Misamis Oriental, and Negros.[9] Local authorities warned at risk residents via radio to flee to higher ground due to the threat of destructive storm surge.[10] Although no mandatory evacuation was in effect, local radio stations broadcast appeals for evacuation every 30 minutes under the direction of the Manila Weather Bureau.[9]

When Ike began to turn towards the northwest on September 3, typhoon warnings were issued for coastal areas between Hong Kong and Beihai. Hundreds of cargo ships left port to escape the typhoon. In Zhanjiang, sandbagging operations took place in an effort to construct a barrier against Ike's storm surge. Hundreds of thousands of residents evacuated from coastal areas.[11] Offshore, four foreign oil companies evacuated workers off of drilling rigs in the South China Sea.[12] Further north, in Hong Kong, a No 1. hurricane signal was issued on September 4 and later that day was upped to a No 3. hurricane signal, but this signal was dropped once the storm dissipated inland.[8]

Impact

[edit]

Philippines

[edit]
Deadliest Philippine typhoons
Rank Storm Season Fatalities Ref.
1 Yolanda (Haiyan) 2013 6,300 [13]
2 Uring (Thelma) 1991 5,101–8,000 [14]
3 Pablo (Bopha) 2012 1,901 [14]
4 "Angela" 1867 1,800 [15]
5 Winnie 2004 1,593 [15]
6 "October 1897" 1897 1,500 [15][16]
7 Nitang (Ike) 1984 1,426 [17]
8 Reming (Durian) 2006 1,399 [15][14]
9 Frank (Fengshen) 2008 1,371 [nb 3][18][19]
10 Sendong (Washi) 2011 1,292–2,546 [20][21][22]

Upon making landfall on northeastern Mindanao on September 1,[23] Ike became the strongest tropical cyclone to strike the Philippines since Typhoon Joan of the 1970 Pacific typhoon season.[24] Typhoon Ike also struck the country a mere four days after Tropical Storm June inundated the northern portion of the country, which claimed 53 lives.[25] The islands were also suffering from the worst economic crisis since independence in 1946.[26] Power was knocked out to much of the country for four days.[12]

The typhoon left a path of destruction in the Philippines that was at its time unparalleled in modern Philippine history.[1] Most of the fatalities were in the province of Surigao del Norte, where around 1,000 died[1] and 27 towns were flattened.[27] More than half of Surigao del Norte's cattle, goat, and pig population were killed.[8] Waves 2,440 mm (8 ft) slammed into the provincial capital of Surigao City, which resulted in 85 casualties.[28] Around 90% of homes in the city were leveled, leaving 90,000 out the town's 135,000 citizens homeless. Fresh water shortages occurred after power was lost in Surigao City.[29] To the southwest in Mainit, numerous homes were swept away after Lake Mainit overflowed its banks,[30] leading to the deaths of over 200 people.[29] On nearby Nonoc Island, 101 were killed, primarily due to drownings,[28] and all but 20 houses of the 2,000 on the island were demolished.[31] Provincewide, 330 people were wounded[32] and 70% of homes, mostly made of wood,[33] and 80% of buildings were destroyed,[8] which resulted in 480,000 homeless.[34] Typhoon Ike was considered the worst typhoon to affect the province in 20 years.[35] Further south, in the province of Surigao del Sur, 16 people perished.[36]

Ten boats sunk offshore the capital city of Manila, where more than 6,000 residences were destroyed.[37] However, the capital was spared the inner core of the typhoon.[29] Elsewhere, in Cebu, thousands of refugees stayed in town halls and churches during the storm;[38] 10 people were injured by flying debris and another 12 went missing on the island.[39] Strong winds snapped power lines in Cebu, resulting in a power outage that impacted the entire province and halted all radio broadcasts in the prefecture.[40] Off of Cebu City, 10 ferries sunk due to the strong waves generated by Ike. Roads connecting Cebu City to 44 peripheral towns were blocked by fallen trees and severe flooding.[39] Throughout the province, 90,000 people were left homeless[27] and damage totaled at least $6.8 million.[29]

Throughout Negros Island, over 4,000 dwellings were destroyed, displacing nearly 75,000 people.[41][42] The Ilog River, the longest on Negros Island, burst its banks and sent a deluge of mud, water, and debris to the municipalities of Kabankalan and Ilog.[43] Across the province of Negros Occidental, 120 people died,[44] including 50 in Kabankalan[30] and 2 in the nearby community of San Carlos.[44] In Negros Oriental, 60 others died[44] and 29 were initially reported missing.[45] Across Mindanao Island, 305 people were killed. A total of 29 people were killed in the province of Agusan del Norte.[46] Six people died in the province of Misamis Oriental.[30] Five others died in Camiguin.[36]

In the Bohol province, the death toll reached 198, making Ike the deadliest natural disaster in the province's history.[47][48] Province-wide, 938 public schools, poultry and livestock, churches, bridges and other public buildings were destroyed or damaged. Around 89,000 houses were damaged or destroyed,[48] which resulted in 58,000 people homeless.[44] In Mabini, 14 fatalities were reported while Guindulman suffered the worst effects in the province. Both the Inabanga and Loboc Rivers swelled and flooded their respective towns for days forcing church services to be held at their convents due to heavy deposits of mud in the church proper.[48] In other provinces across the region, twenty-four died in Leyte, two other fatalities occurred in Aklan,[35] and three people were killed in Iloilo.[36]

Nationwide, 1,426 people were killed as a result of the typhoon,[8] making Ike the deadliest typhoon to hit the country in the 20th century at the time, surpassing the previous record of Typhoon Trix in 1952.[49] This mark would be eclipsed, however, by Tropical Storm Thelma in 1991.[50] A total of 1,856 people were hurt.[51] Furthermore, 108,219 houses were destroyed while an additional 142,653 homes were damaged. In all, damage was estimated at $230 million. Crop damage was placed at $76.5 million,[52][nb 4] with damage to coconut plantations totaling $61 million.[53] Property damage on the islands reached $111 million.[8]

China

[edit]
Ike on September 4 redeveloping in the South China Sea

Across Hainan Island, winds of 103 km/h (64 mph) were measured,[8] resulting in power being knocked out for the entire island.[54] At the time of its second landfall, Ike was a large but weakening tropical system, with gale-force winds extending out 315 km (195 mi) from the center. The storm brought 76–127 mm (3.0–5.0 in) of rain to most of the affected areas, with locally higher amounts. Thirteen fishermen were overcome by the 7.6–9.1 m (25–30 ft) swells off the coast of Weizhou Island[55] Across the Guangdong, 2,000 houses were destroyed.[54] In the Guangxi near the storm made landfall, the storm destroyed zones of homes, factories, and boats,[56] especially in the coastal towns of Beihai, Qinzhou, and Fancheng.[57] In nearby Nanning, half of the city was left without power, one building collapsed, and 450 trees were uprooted.[8] There, 13 people were killed[58] and two people were severely wounded.[53] Provincewide, 14 people were killed, with six others rendered missing[8] while 12,000 ha (29,651 acres) of sugar cane was destroyed.[53] Ike was considered the worst typhoon to strike the province since 1954.[59]

Nationwide, numerous trees and power lines were downed by the storms' high winds and an estimated 13,000 structures were damaged or destroyed. Communication was temporarily cut off because of the storm. Four foreign oil companies evacuated their sites temporarily.[60] A total of 50 people were killed by the remnants of Ike in central China.[61] There were also reports of 13 people missing.[62] An estimated 12,000 ha (29,650 acres) of sugar cane were destroyed and about 1,315,425 kg (2,900,000 lb) of vegetables were lost.[63] Damage assessment was delayed because of disrupted communication from Qinzhou, Peking, and Hainan.[64][65]

A minimum sea level pressure of 1,009 mbar (29.8 inHg) was recorded at the Hong Kong Royal Observatory. A peak wind gust of 89 km/h (55 mph) was reported on the island of Tai O. Tate's Cairn measured 24.2 mm (0.95 in) of rain, the highest total within the vicinity of Hong Kong from September 4 to 6. In the western portion of Hong Kong, one woman was injured by a fallen wooden plank. Nearby, a scaffolding and hoardings were blown down at a construction site. Otherwise, no damage was reported in Hong Kong.[8]

Elsewhere

[edit]

Due to the proximity of Ike to Guam upon its formation, the island was placed under the "Condition of Readiness" level; this was the first time that such a high readiness level was issued since Typhoon Pamela in 1982. Although Ike passed somewhat near the island, the storm's compact size during its formative stages mitigated any damage. Despite being near typhoon intensity at the time, a station on Nimitz Hill only documented winds of 30 km/h (19 mph), with higher gusts.[1]

The outer rainbands of the typhoon brought unseasonably heavy rains to Thailand.[66] There, four people were reported missing and ten were injured after water from an overflowing dam tipped over a bus.[36] Two people were killed and three were rendered missing due to flash flooding in Bangkok.[54] Elsewhere, the outer extremities of Ike produced light rainfall and light breezes on Okinawa, peaking at 3.8 mm (0.15 in) in Ibaruma,[67] most of which fell in an hour.[68]

Aftermath

[edit]

Immediately following Ike, the Government of the Philippines dispatched a C-130 aircraft carrying relief supplies to the affected areas,[69] including 32,000 tonnes (35,000 tons) to Suriago City.[29] The large loss of life resulted in morgues running out of coffins, leading to bodies being immediately buried to prevent the spread of disease. Imelda Marcos, the wife of president Ferdinand Marcos, flew to Surigao City to personally hand out relief supplies.[70] Ferdinand Marcos warned on television for profiteers and looters to not "take advantage of the situation".[35] Nevertheless, the typhoon set the stage for protests against Marcos and his handling of the storm throughout the country for the rest of the month.[71]

The president set aside $4 million for relief work but initially refused any international aid.[72] Despite this, the League of Red Cross and Red Crescent Societies appealed in Switzerland for $800,000 in emergency aid for victims of the typhoon.[28] The Philippines Air Force delivered 907,185 kg (2,000,000 lb) of food, medicine, and clothes.[73] According to officials, 92 health teams backed by 17 army medical units were fielded; these teams distributed $1.66 million worth of medicine.[34] The Philippine Red Cross disturbed food to 239,331 people, or 44,247 families.[74] The mayor of Suriago City applied for national aid since the city's residents faced starvation.[49] On September 9, President Marcos ordered $100,000 worth of cash to seven province governors, and released $555,000 with the intent of rebuilding Suriago City.[75] A task force was also sent up by him to speed up the recovery process.[73]

On September 8, the nation abandoned its policy of refusing foreign aid, citing a lack of resources due to the country's poor economy.[76] The United Nations Office for the Coordination of Humanitarian Affairs gave an emergency grant of $50,000. UNICEF provided $116,000 worth of vitamins and medicine and an additional $116,950 in cash, as well as 28 t (31 short tons) of milk powder. They later provided vegetable seeds, dried fish, and garden fertilizer. The World Health Organization provided $7,000 worth of aid. Furthermore, the United Nations Development Programme awarded the country $30,000 in cash. The European Economic Community provided 330 short tons (300 t) of milk and $367,650 worth of cash.[74] In the middle of September, the United States approved $1 million in aid to the archipelago. Japan also sent a $500,000 check.[77] Australia awarded almost $500,000 worth of cash and food. New Zealand donated 22,680 kg (50,000 lb) of skimmed milk. The Norwegian Red Cross provided $58,500 in aid while the European Economic Community awarded just over $7,000 in cash. Belgium also provided three medical kits. The Swiss Red Cross awarded a little under $21,000 in cash. Germany provided slightly more than $50,000 in cash. France provided roughly $11,000 in donations to the nation's red cross. The Red Cross Society of China donated $20,000 in cash. Indonesia provided $25,000 worth of medicine. The United Kingdom granted $74,441 in aid. Overall, Relief Web reported that over $7.5 million was donated to the Philippines due to the storm.[74]

Starting on September 11, a massive relief item airlift was planned to assist the region.[78] Due to Tropical Storm June, 19 provinces had already been placed under a state of emergency. Following Ike, three other provinces were placed under a state of emergency.[78] Due to both Ike and June, 25 of the nation's 73 provinces were declared a disaster area.[44] Because of the destruction and loss of life in the Philippines and China, the name Ike was retired and was replaced by Ian.[79] The name Nitang, was also retired, and was replaced by Ningning.[80]

See also

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Notes

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References

[edit]

Further reading

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Typhoon Ike

View on Grokipedia
from Grokipedia
Typhoon Ike (13W), also referred to as Nitang in the Philippines, was the thirteenth named tropical storm and eighth typhoon of the 1984 Pacific typhoon season, forming from a disturbance southeast of Guam on August 21, 1984, and dissipating on September 6 after crossing the Philippines and China. The system tracked initially northwestward, then west-southwestward, rapidly intensifying to peak 1-minute sustained winds of 125 knots (230 km/h; 144 mph) with a minimum central pressure of 947 millibars (28.0 inHg) just prior to landfall in the central Philippines on September 1. After devastating the with high winds, , and flooding, Ike weakened while crossing the archipelago but reattained strength in the , reaching 115 knots (213 km/h; 132 mph) before making landfall in Province, , on September 4. The then recurved northeastward, affecting shipping interests but causing no further significant land impacts before extratropical transition. The 's primary impacts occurred in the , where it resulted in 1,026 confirmed deaths and 1,147 people missing, mainly from drowning in floodwaters and surges that displaced 200,000 to 480,000 residents; reported 13 fatalities from flooding and crop losses. Property damage in the alone exceeded $111 million (1984 USD), contributing to Ike's status as one of the deadliest Western Pacific cyclones of the and prompting the retirement of its name from the typhoon naming list.

Meteorological history

Formation and early development

A persistent area of disturbed within the emerged southeast of on August 21, 1984, exhibiting a weak low-pressure with disorganized . The disturbance drifted erratically, initially northwestward at 5-10 knots, as shear and insufficient organization delayed development despite favorable sea surface temperatures exceeding 28°C. By August 26, indicated a consolidating low-level circulation with improving convective banding, prompting a formation alert from the (JTWC) at 2100 UTC. The system attained tropical depression status later that day near 14.5°N, 146.5°E, with estimated maximum sustained winds of 25 knots and a minimum sea-level around 1006 mb. Intensification accelerated overnight into August 27, as vertical diminished and outflow enhanced via an upper-level anticyclone; the depression upgraded to tropical storm status at 0000 UTC, earning the name Ike with winds reaching 35 knots and pressure falling to 997 mb near 15.0°N, 145.0°E. Early steering currents from a subtropical to the north guided Ike west-northwestward at 10-15 knots, passing approximately 90 nautical miles southwest of by August 28 without direct impact on the island.

Intensification and track across the Pacific

Following its designation as a tropical storm, Ike rapidly intensified into a on August 25, 1984, with sustained winds reaching 65 knots (120 km/h) and a central of 980 mb near 13°N, 145°E in the . The storm tracked west-northwestward across the western Pacific, benefiting from favorable environmental conditions including warm sea surface temperatures and low that supported further development. By August 27, Ike underwent explosive intensification, achieving super typhoon status with peak winds of 140 knots (260 km/h) and a minimum central of 910 mb centered around 18°N, 135°E. This rapid strengthening phase, characterized by a pressure drop of over 70 mb in approximately 48 hours, propelled the cyclone's eyewall contraction and increased organization as observed in . The system maintained a steady west-northwest trajectory, covering roughly 1,000 nautical miles toward the at speeds of 10-15 knots. Slight weakening ensued by August 28, with winds easing to 75 knots (140 km/h) and pressure rising to 947 mb near 19°N, 130°E, possibly due to increasing . Nonetheless, Ike rebounded to intensity with winds near 100 knots (185 km/h) as it closed in on the eastern by September 1, positioned around 18°N, 121°E, prior to its first . This path exemplified a classic straight-runner track typical of intense western North Pacific typhoons steered by mid-level subtropical ridge influences.

Landfalls, peak intensity, and dissipation

Typhoon Ike rapidly intensified while tracking westward toward the , attaining super typhoon status with maximum 1-minute sustained winds of 125 knots (230 km/h) and a minimum central of 947 hPa shortly before its first on September 1, 1984. The storm briefly exceeded the Joint Typhoon Warning Center's super typhoon threshold of 130 knots during this phase. At peak intensity, Ike struck Siargao Island in the region of the around 1200 UTC on September 1, with estimated winds of 145 mph (230 km/h) at the point of . The crossed central over the next 24 hours, moving through , , and islands, where interaction with rugged terrain caused rapid weakening to typhoon strength with winds of approximately 100 knots (185 km/h). Emerging into the on September 2, Ike tracked northwestward, maintaining typhoon intensity but failing to reintensify significantly due to vertical and cooler sea surface temperatures. It made a second landfall on Hainan Island, , on September 5 as a minimal typhoon with sustained winds reduced to 90 mph (145 km/h). After crossing , Ike continued inland over southern , degenerating into a tropical storm by September 6 as frictional effects and disrupted its circulation. The remnants dissipated completely over land near the region later that day, marking the end of the cyclone's lifecycle on September 6, 1984.

Preparations and forecasting

Warnings in the Philippines

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (), operating as the Manila Weather Bureau at the time, monitored Typhoon Nitang—its local designation for international Typhoon Ike—and issued storm signals (PSS) as the storm intensified while approaching the eastern seaboard. PSS No. 3, the highest signal available in the system then, was hoisted on September 1, 1984, over Surigao provinces, , , Agusan provinces, Camiguin Island, , and , signaling expected winds exceeding 100 km/h within 12 hours and potential for significant structural damage. PSS No. 2 was raised for Davao, , , , , , , , and , indicating winds of 60–100 km/h with moderate to heavy damage risks. PSS No. 1 covered the remainder of the , much of , , and , forecasting winds up to 60 km/h and minimal to minor effects. These signals were disseminated primarily through radio broadcasts, the primary medium for reaching rural and coastal communities in the path, including northeastern and the . The warnings aligned with the storm's projected track toward a near , where Ike's sustained winds had reached super strength exceeding 200 km/h internationally, though PAGASA's system lacked higher tiers until 1991. advisories, coordinated internationally, supported local forecasts by confirming the cyclone's and westward trajectory across the . Post-event analyses noted that while warnings were issued timely, public comprehension was hampered by limited emphasis on associated risks like storm surges, contributing to inadequate evacuations in low-lying areas despite the signals' intent to prompt precautions such as securing properties and avoiding sea travel. Local variations in response effectiveness were observed, with benefiting from enhanced radio interpretations compared to Surigao, underscoring gaps in the era's warning dissemination reliant on broadcast media without modern digital alerts.

Preparations in China and other affected areas

In southern , preparations for Typhoon Ike focused on coastal regions of and provinces as the storm re-intensified in the and made landfall near on September 3, 1984. Local authorities conducted limited evacuations, with dozens of families relocated from low-lying and vulnerable areas ahead of the storm's arrival. The typhoon was anticipated to bring severe winds and flooding, recognized as the most intense to affect in three decades, though specific measures such as widespread sheltering of fishing vessels or infrastructure reinforcements were not extensively documented in contemporary reports. In , the tracked Ike's southwestward path, which passed approximately 70 nautical miles south of the territory, necessitating only basic monitoring without escalation to higher alert levels. Offshore in the , operations were curtailed as the cyclone approached, consistent with standard protocols for threats in the region. No significant evacuations or disruptions were reported in , as Ike's track remained well to the south.

Role of international meteorological agencies

The Joint Typhoon Warning Center (JTWC), a collaborative U.S. and entity, monitored Typhoon Ike (designated 8413) using , synoptic observations, and aircraft reconnaissance data from regional stations. JTWC issued its initial warning at 0000Z on August 27, 1984, classifying the system as a tropical storm with forecasts predicting an initial northwest track before a shift to west-southwest, accurately anticipating its approach toward the . Intensity estimates peaked at 125 knots (64 m/s) on September 1, informed by the One-Way Interactive Tropical Cyclone Model (OTCM), with warnings continuing through the storm's dissipation. These advisories, though unofficial under WMO protocols, were widely shared with international partners and national meteorological services in the western North Pacific, providing supplementary guidance where local capabilities were constrained by limited access or modeling resources in 1984. The Japan Meteorological Agency (JMA), serving as the WMO-designated Regional Specialized Meteorological Center (RSMC) for tropical cyclones in the basin, issued official numbered advisories for Ike starting from its genesis as a tropical depression on August 27, 1984, at 0600Z UTC. JMA's best track data documented the cyclone's development, with peak sustained winds estimated at around 105 knots and a central pressure of 945 hPa near landfall in the on September 1, tracking the system until its extratropical transition on September 6. These forecasts supported regional coordination, including data exchanges with members of the ESCAP/WMO Typhoon Committee, though JTWC analyses often complemented JMA outputs due to differing estimation methodologies—such as applications—which occasionally led to variances in intensity assessments of up to 20-30 knots during rapid deepening phases. Forecast verification for Ike revealed mixed performance across agencies: JTWC's 24-hour track errors averaged approximately 70 nautical miles, with larger 72-hour discrepancies up to 448 nautical miles due to unanticipated recurvature influenced by mid-latitude interactions, while intensity forecasts underestimated peak winds by up to 28 knots in early projections. JMA's operational advisories, prioritized for maritime and , emphasized probabilistic track guidance but faced similar challenges from sparse upper-air in the region. No formal inter-agency error comparisons were published for this event, but the complementary roles of JTWC and RSMC enhanced overall warning efficacy for downstream nations like the and , where reliance on international bulletins informed evacuation timelines despite inherent uncertainties in 1980s-era numerical models.

Regional impacts

Devastation in the Philippines

Typhoon Ike made landfall on the northeastern coast of near on September 1, 1984, as a powerful Category 4-equivalent storm with sustained winds of approximately 185 km/h and gusts up to 275 km/h. The typhoon ravaged central and southern provinces, including , , and Southern Visayas, bringing destructive winds that demolished coastal infrastructure and torrential rains exceeding 500 mm in some areas, triggering catastrophic flash floods. Hardest-hit regions encompassed , Province, , and Nonoc Island, where storm surges and flooding overwhelmed communities. The devastation claimed 1,458 lives or left individuals missing, primarily due to drowning in flash floods, with 366 others injured. In alone, over 1,000 fatalities were reported, and approximately 90% of structures in were leveled, displacing 90,000 of the city's 135,000 residents. Nationwide, the storm rendered 135,000 people homeless, affecting 22,500 families, while economic losses reached 303 million Philippine pesos (equivalent to about at the time). Maritime impacts were severe, with 11 ships sunk and a major wharf destroyed on Nonoc Island, disrupting local industries such as . Agricultural sectors suffered extensively from flooding and wind damage to crops, contributing to long-term food shortages in affected provinces. The typhoon's and unusual track across densely populated islands amplified the human toll, marking it as one of the deadliest tropical cyclones to strike the in the .

Effects in China

Typhoon Ike made its first landfall on northeastern Island, , on September 8, 1984, before weakening into a tropical storm and crossing the for a second landfall on September 9 near the border between and provinces. The storm's sustained winds at the second landfall were estimated at 65-95 knots (120-176 km/h), causing widespread structural damage in coastal areas. In Province, Ike inflicted severe wind damage, described as the worst typhoon in 30 years, with gusts up to 93 mph (150 km/h) demolishing houses, flattening factories as far as 100 miles (160 km) inland, and smashing coastal boats. Communications lines were severed, delaying full damage assessments, while homes and infrastructure in affected regions faced extensive destruction. Heavy rains accompanying the dissipating storm triggered flooding and crop losses across southern , contributing to at least 13 confirmed deaths from these secondary effects, though estimates range up to over 50 fatalities nationwide. Initial reports from noted at least 20 deaths and numerous injuries, with no comprehensive economic tally available but significant agricultural and industrial setbacks implied by the scale of infrastructure losses.

Impacts elsewhere

Typhoon Ike generated strong winds in as it recurved northwestward through the toward its landfall in on September 10, 1984, with gusts recorded up to 49 knots (91 km/h) at Tate's Cairn. No fatalities, significant structural damage, or widespread flooding were reported in the territory, though maritime and aviation operations faced disruptions from the associated warnings. Peripheral effects extended to shipping in the region, where vessels were advised to avoid the storm's path, but no major incidents or losses were documented beyond the primary impact zones. and experienced no direct land impacts from Ike, as the storm's track remained south and west of these areas.

Aftermath and response

Immediate casualties and damage assessment

In the Philippines, initial assessments following Ike's on September 1, 1984, reported hundreds of deaths, with the official toll reaching 332 by September 3 amid fears of significant undercounting due to communication disruptions in remote areas. The final immediate casualty figures confirmed over 1,490 fatalities, predominantly from in flash floods and landslides caused by torrential rains exceeding 500 mm in some regions, alongside 1,856 injuries and widespread displacement affecting roughly 1.6 million people. The hardest-hit province, , accounted for around 1,000 deaths, with 90% of structures in leveled by winds and storm surges up to 2.4 meters, rendering 90,000 of its 135,000 residents homeless. Damage assessments revealed extensive destruction across central and and , including the devastation of over 13,000 homes and significant losses to , particularly sugar cane crops spanning 12,000 hectares. Early economic estimates placed property and infrastructure losses in the millions of dollars, with Cebu province alone reporting $6.8 million in damages; overall impacts escalated to approximately $230 million (1984 USD), encompassing crop failures valued at $76.5 million. In , where Ike made landfall as a weakening typhoon on near the Guangdong-Fujian border, immediate reports indicated no initial deaths but numerous injuries from gusty winds and flooding. Subsequent evaluations attributed over 50 additional fatalities to the storm's remnants, primarily from flooding in southern provinces, alongside damage to homes and farmland though less severe than in the due to the cyclone's dissipation. Total immediate casualties across affected regions thus exceeded 1,540, underscoring Ike's role as one of the deadliest Pacific typhoons of the .

Government and international relief efforts

The Philippine launched a comprehensive domestic operation following Typhoon Ike's landfall on September 1, 1984, encompassing roughly one-fourth of the country's territory and coordinating with provincial and capital city officials to distribute essentials amid widespread devastation. On September 4, authorities deployed a C-130 loaded with , clothing, and medicine to reach isolated stricken regions, including province where over 90% of structures in some areas were destroyed. President directed the allocation of $4.4 million specifically for immediate and longer-term rehabilitation, urging national unity in a broadcast on September 5 to prioritize rescue and recovery over political divisions. Initially, Philippine officials declined external assistance, committing $4 million from national resources, but reversed course by to accept foreign aid offers amid the scale of damage exceeding 200,000 homeless and thousands of destroyed homes. The , , and nations provided emergency shipments of food and supplies targeted at hardest-hit provinces like and . The Disaster Relief Office (UNDRO) facilitated coordination by issuing multiple situation reports from late August through mid-September, advising donors on channeling aid through relevant ministries while tracking affected families numbering over 9,000 in early assessments. In , where Ike weakened to a severe tropical storm before second on near the Guangdong- border—marking the most intense cyclone in since 1954—government-led responses focused on internal evacuation and damage mitigation, though detailed international involvement remained limited given the storm's reduced ferocity and lower casualty figures compared to the .

Criticisms of and recovery

Criticisms of the Philippine government's preparedness centered on inadequate measures against flash flooding, despite prior establishment of the Philippine Atmospheric, Geophysical and Astronomical Services Administration () in 1972 for improved forecasting. The typhoon, which struck on September 1, 1984, caused 1,556 deaths, over 1,000 injuries, 1,500 missing persons, and left 200,000 homeless, primarily due to flooding rather than winds, highlighting failures in evacuation and infrastructure resilience in vulnerable areas like Surigao. Flood-control projects initiated earlier faced significant delays and cost overruns, escalating from an estimated 236 million pesos to over 1 billion pesos following previous storms, which limited effective mitigation. Recovery efforts drew scrutiny for initial rejection of international assistance, with Foreign Ministry spokesman Franklin Ebdalin announcing on September 6, 1984, the refusal of offers from the Disaster Relief Office, potentially delaying distribution amid extensive crop losses (90 percent in Surigao) and homelessness affecting hundreds of thousands. Although President declared a state of calamity and later accepted from the , , and European partners, critics pointed to misuse of relief funds, including relabeling international donations as personal "gifts" from the for political advantage, and broader in disaster management under the . Imelda Marcos's involvement in distributing goods was seen as performative rather than substantive, exacerbating perceptions of mismanagement. In , where Ike made landfall in Province on September 10, , killing over 50 and destroying homes, factories, and boats, recovery faced logistical challenges from severed communications lines, leading to delayed damage assessments, though no widespread public criticisms of emerged in contemporaneous reports. The storm's impacts there were less severe than in the , with focusing on cleanup efforts rather than systemic failures.

Significance and records

Meteorological achievements and anomalies

Typhoon Ike attained super typhoon status according to (JTWC) estimates, peaking at 130 knots (240 km/h) 1-minute sustained winds on September 1, 1984, shortly before landfall in the central . This intensity marked one of the strongest tropical cyclones of the 1984 season in the western North Pacific, with a minimum central pressure of 947 millibars at peak. The storm's phase, fueled by reduced upper-level after August 25, enabled it to escalate from a disturbance to super typhoon strength within days, showcasing efficient energy transfer from the warm ocean waters of the . After crossing the and weakening, Ike demonstrated unusual resilience by reintensifying in the to 115 knots (210 km/h) by September 4, 1984, prior to its second landfall on Hainan Island. This post-landfall recovery, though not unprecedented, highlighted the cyclone's access to favorable environmental conditions, including sufficient sea surface temperatures and low shear, allowing partial structural reorganization over water. The overall lifetime spanned approximately 10.25 days from formation on August 27 to dissipation on September 6, contributing to its classification as a prolonged and potent system. Notable anomalies included discrepancies in the observed -wind relationship, such as 75-knot paired with a 991-millibar central on , which deviated from standard empirical models linking lower pressures to higher and suggested potential asymmetries in the storm's core or limitations in data. The track exhibited a relatively straight west-southwest progression from near to the and onward to , lacking the typical recurvature seen in many western Pacific typhoons, possibly due to persistent steering influences from a mid-level subtropical ridge. estimates, using 10-minute sustained , placed the maximum at 90 knots with a 950-millibar minimum, underscoring inter-agency variances in intensity assessment methodologies.

Long-term lessons and comparisons to other typhoons

Typhoon Ike stands as one of the deadliest tropical cyclones to strike the in the , ranking second with 1,490 fatalities, primarily from flash flooding rather than wind damage. This death toll exceeded that of in 2006, which caused 1,347 deaths, and positioned Ike ahead of many other Western North Pacific in terms of human loss until surpassed by events like (Yolanda) in 2013 with over 6,000 fatalities. In contrast to wind-dominated storms such as Typhoon June (Maring) earlier in 1984, which also ravaged central and southern regions but with fewer flood-related drownings, Ike highlighted the disproportionate risks posed by prolonged heavy rainfall—up to 500 mm in some areas—over rugged terrain, amplifying landslides and river overflows compared to flatter or coastal impacts in storms like Typhoon Vanessa (1984). The typhoon's aftermath revealed systemic vulnerabilities in flood-prone informal settlements, alerting Philippine authorities to the acute exposure of low-income populations in hazard-prone zones, a pattern echoed but not fully mitigated in subsequent disasters. With over 200,000 people left homeless and property damage estimated at US$111 million, Ike prompted early calls for enhanced land-use regulations to restrict development in steep, drainage-impaired areas, though implementation lagged due to rapid and challenges. Unlike more recent typhoons benefiting from advanced , Ike's era limited predictive accuracy, underscoring the need for improved hydrological monitoring and community-based evacuation protocols tailored to inland flooding risks, lessons partially incorporated into the National Disaster Risk Reduction and Management Plan post-2010 but tested repeatedly by events like Super Typhoon Rolly (Goni) in 2020. Comparatively, Ike's economic toll, while severe, was lower than Haiyan's PHP 89 billion (about $2 billion) in damages, reflecting differences in affected density—Ike primarily struck rural and with sparse development versus Haiyan's urban-rural mix in the . Long-term analyses emphasize that Ike's flooding dominance, responsible for 90% of deaths, necessitates resilient like reinforced riverbanks and early-warning gauges, priorities reinforced by empirical data from recurrent typhoons showing persistent underinvestment in non-coastal defenses despite annual threats averaging 20 landfalls. These insights have informed causal attributions in disaster modeling, prioritizing upstream over reactive relief to reduce cascading failures in vulnerable ecosystems.

References

  1. https://www.metoc.navy.mil/jtwc/products/atcr/1984atcr.pdf
  2. https://www.aoml.noaa.gov/hurricane_blog/30th-anniversary-of-typhoon-ike-nitang/
  3. https://agora.ex.nii.ac.jp/digital-typhoon/summary/wnp/s/198411.html.en
  4. http://lib.mainit.org/343/1/pnabg249.pdf
  5. http://www.ijmet.org/wp-content/uploads/2018/10/94.pdf
  6. https://www.upi.com/Archives/1984/09/10/Typhoon-Ike-hits-China/5957463636800/
  7. https://apps.dtic.mil/sti/tr/pdf/ADA153395.pdf
  8. http://news.bbc.co.uk/onthisday/hi/dates/stories/september/3/newsid_2496000/2496059.stm
  9. https://reliefweb.int/taxonomy/term/5926
  10. https://reliefweb.int/report/philippines/philippines-typhoons-sep-1984-undro-information-reports-1-4
  11. https://www.facebook.com/groups/CantilanHistoricalPreservationMovement/posts/2208257765885966/
  12. https://www.upi.com/Archives/1984/09/03/Typhoon-Ike-leaves-325-dead-in-two-days/9523463032000/
  13. https://www.hko.gov.hk/en/publica/tc/files/tc1984.pdf
  14. https://www.upi.com/Archives/1984/09/10/Typhoon-Ike-ripped-through-southern-Guangxi-Province-today-destroying/6031463636800/
  15. https://www.upi.com/Archives/1984/09/11/China-cleans-up-after-Typhoon-Ike/7016463723200/
  16. https://www.britishpathe.com/asset/180172
  17. https://www.philstar.com/headlines/2013/11/11/1255490/deadliest-most-destructive-cyclones-philippines
  18. https://www.upi.com/Archives/1984/09/04/Typhoon-Ike-left-more-than-438-Filipinos-dead-and/6873463118400/
  19. https://www.upi.com/Archives/1984/09/06/The-confirmed-death-toll-from-Typhoon-Ike-rose-to/4421463291200/
  20. https://apjjf.org/2013/11/43/james-f-warren/4018/article
  21. https://www.nytimes.com/1984/09/10/world/filipinos-to-get-foreign-typhoon-relief-aid.html
  22. https://reliefweb.int/report/philippines/philippines-typhoons-sep-1984-undro-situation-reports-1-7
  23. https://www.sciencedirect.com/science/article/pii/S2225603218300122
  24. https://odi.org/documents/3146/7026.pdf
  25. https://www.sciencedirect.com/science/article/abs/pii/S0143622817308391
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