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October 2013 North American storm complex
The October 2013 North American storm complex was a massive blizzard and tornado outbreak that affected the Northwest, Rockies, and much of the Midwest in early-October 2013. A total of 22 tornadoes were confirmed as the system moved eastward across the eastern half of the United States, including two that were rated EF4. The storm was unofficially named Winter Storm Atlas by The Weather Channel.
Additionally, the system's tail end cold front absorbed the remnants of Tropical Storm Karen, later becoming a nor'easter off the East Coast of the United States and caused minor flooding in a few states, including Delaware, Georgia, New Jersey, and Pennsylvania.
On October 3, 2013, the National Weather Service issued a blizzard warning for Rapid City and the Black Hills in advance of the storm urging people to delay or cancel travel plans.
Heavy snowfall trapped over six dozen people inside of their automobiles and tornadoes injured 17 people in Iowa and Nebraska. Rapid City, the second largest city in South Dakota, was engulfed in close to two feet of snow, which exceeds the amount of snow that the city has ever recorded during any whole month of October. Furthermore, on October 4, 2013, the city received over 19 inches (48 cm) of snow, which exceeded the previous one day record in October by more than 6 inches (15 cm). Over 20,000 people lost electricity in Black Hills, where more than a meter of watered down, dense snow had fallen. The storm system also included thunderstorms that brought iced precipitation, significant rain and over half a dozen tornadoes to Nebraska and Iowa. Two of these tornadoes were violent enough to be rated EF4 on the Enhanced Fujita scale. Over 200 miles (320 km) of Interstate 90 was shut down from South Dakota to Wyoming.
The storm affected about 5,000 ranches in western South Dakota producing snow totals as high as 5 feet (1.5 m) and 70 mph (110 km/h) winds that scattered herds for miles and resulted in the deaths of many cattle due to exhaustion and hypothermia. In a storm South Dakotans called the Cattleman's Blizzard, at least 14,000 cattle, 1300 sheep, 300 horses, and 40 bison were killed with South Dakota ranchers reporting losses of 20 to 50 percent of their herds. Thousands of people were without power. Three people died in a motor vehicle accident on US 20.
The storm coincided with the United States federal government shutdown of 2013, which limited timely federal response to the disaster.
The cold front of the aforementioned system was also responsible for absorbing what was left of Tropical Storm Karen in the Gulf of Mexico, with the remnant trough of that cyclone being responsible for a nor'easter that developed off the East Coast of the United States. For the next few days, Karen's remnant made a counterclockwise loop over the coast of North Carolina, reaching an extratropical peak of 1,005 millibars (29.7 inHg) on October 10, before making another counterclockwise loop off the coast of the Delmarva Peninsula. The nor'easter then turned southward on October 12, after completing its second loop. Afterward, the system drifted southwestward back towards Florida for the next few days, closing off a long, clockwise loop in its track. Karen's remnants eventually dissipated on October 15, just off the coast of Florida.
As a nor'easter, Karen caused significant flooding in Pennsylvania, with some places nearly getting a foot (0.3 meters) of rain. Harrisburg saw more than 10 in (250 mm) of rainfall, setting the record for the wettest October for the city, with 11.27 in (286 mm) of rain recorded. Flood warnings were issued for Cumberland, Dauphin, Perry, Franklin, and Lebanon Counties. In Dauphin County, where Harrisburg is located, most areas received 5 to 10 inches (130 to 250 mm) of rain from the storm. Portions of the Pennsylvania Farm Show Complex & Expo Center parking lot were inundated. Parts of Hershey, including Hersheypark, experienced flooding. The animals at ZooAmerica in Hersheypark were evacuated to higher ground. The zoo took additional precautions due to the flooding and closed the park, after an incident two years prior, when Tropical Storm Lee flooded the area, killing two bison. Three people were displaced by flood waters on October 12 in Middletown. Numerous roads were closed in Adams County, mainly in the northern and eastern portions of the county. Two homes collapsed in Oxford and Tyrone townships. Numerous rural roadways were closed in Lancaster County, including Fruitville Pike near Pennsylvania Route 72. The Chickies Creek near Manheim, Pennsylvania overflowed its banks and flooded nearby roads. Minor river flooding also occurred in Lancaster from the Conestoga River. A precautionary evacuation took place at a mobile home trailer park in Hellam Township, due to river flooding associated with Kreutz Creek. A portion of U.S. Route 30 was flooded in West Manchester Township. In Camp Hill, moderate river flooding occurred on the Yellow Breeches Creek, with a crest of 11.4 feet (3.5 m). In Howe Township, a part of Perry County, a rockslide closed U.S. Route 322 westbound. One water rescue was performed for a stranded motorist in South Londonderry Township on Pennsylvania Route 241. Flooding was reported due to poor drainage systems in Downingtown, where 3.59 in (91 mm) of rain fell. Near Philadelphia, the Newtown Square Pennsylvania Railroad Museum rescheduled Newtown Square Railroad Day, originally set for October 12, to October 19. Philadelphia International Airport reported 2.03 in (52 mm) of rainfall from the nor'easter.
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October 2013 North American storm complex
The October 2013 North American storm complex was a massive blizzard and tornado outbreak that affected the Northwest, Rockies, and much of the Midwest in early-October 2013. A total of 22 tornadoes were confirmed as the system moved eastward across the eastern half of the United States, including two that were rated EF4. The storm was unofficially named Winter Storm Atlas by The Weather Channel.
Additionally, the system's tail end cold front absorbed the remnants of Tropical Storm Karen, later becoming a nor'easter off the East Coast of the United States and caused minor flooding in a few states, including Delaware, Georgia, New Jersey, and Pennsylvania.
On October 3, 2013, the National Weather Service issued a blizzard warning for Rapid City and the Black Hills in advance of the storm urging people to delay or cancel travel plans.
Heavy snowfall trapped over six dozen people inside of their automobiles and tornadoes injured 17 people in Iowa and Nebraska. Rapid City, the second largest city in South Dakota, was engulfed in close to two feet of snow, which exceeds the amount of snow that the city has ever recorded during any whole month of October. Furthermore, on October 4, 2013, the city received over 19 inches (48 cm) of snow, which exceeded the previous one day record in October by more than 6 inches (15 cm). Over 20,000 people lost electricity in Black Hills, where more than a meter of watered down, dense snow had fallen. The storm system also included thunderstorms that brought iced precipitation, significant rain and over half a dozen tornadoes to Nebraska and Iowa. Two of these tornadoes were violent enough to be rated EF4 on the Enhanced Fujita scale. Over 200 miles (320 km) of Interstate 90 was shut down from South Dakota to Wyoming.
The storm affected about 5,000 ranches in western South Dakota producing snow totals as high as 5 feet (1.5 m) and 70 mph (110 km/h) winds that scattered herds for miles and resulted in the deaths of many cattle due to exhaustion and hypothermia. In a storm South Dakotans called the Cattleman's Blizzard, at least 14,000 cattle, 1300 sheep, 300 horses, and 40 bison were killed with South Dakota ranchers reporting losses of 20 to 50 percent of their herds. Thousands of people were without power. Three people died in a motor vehicle accident on US 20.
The storm coincided with the United States federal government shutdown of 2013, which limited timely federal response to the disaster.
The cold front of the aforementioned system was also responsible for absorbing what was left of Tropical Storm Karen in the Gulf of Mexico, with the remnant trough of that cyclone being responsible for a nor'easter that developed off the East Coast of the United States. For the next few days, Karen's remnant made a counterclockwise loop over the coast of North Carolina, reaching an extratropical peak of 1,005 millibars (29.7 inHg) on October 10, before making another counterclockwise loop off the coast of the Delmarva Peninsula. The nor'easter then turned southward on October 12, after completing its second loop. Afterward, the system drifted southwestward back towards Florida for the next few days, closing off a long, clockwise loop in its track. Karen's remnants eventually dissipated on October 15, just off the coast of Florida.
As a nor'easter, Karen caused significant flooding in Pennsylvania, with some places nearly getting a foot (0.3 meters) of rain. Harrisburg saw more than 10 in (250 mm) of rainfall, setting the record for the wettest October for the city, with 11.27 in (286 mm) of rain recorded. Flood warnings were issued for Cumberland, Dauphin, Perry, Franklin, and Lebanon Counties. In Dauphin County, where Harrisburg is located, most areas received 5 to 10 inches (130 to 250 mm) of rain from the storm. Portions of the Pennsylvania Farm Show Complex & Expo Center parking lot were inundated. Parts of Hershey, including Hersheypark, experienced flooding. The animals at ZooAmerica in Hersheypark were evacuated to higher ground. The zoo took additional precautions due to the flooding and closed the park, after an incident two years prior, when Tropical Storm Lee flooded the area, killing two bison. Three people were displaced by flood waters on October 12 in Middletown. Numerous roads were closed in Adams County, mainly in the northern and eastern portions of the county. Two homes collapsed in Oxford and Tyrone townships. Numerous rural roadways were closed in Lancaster County, including Fruitville Pike near Pennsylvania Route 72. The Chickies Creek near Manheim, Pennsylvania overflowed its banks and flooded nearby roads. Minor river flooding also occurred in Lancaster from the Conestoga River. A precautionary evacuation took place at a mobile home trailer park in Hellam Township, due to river flooding associated with Kreutz Creek. A portion of U.S. Route 30 was flooded in West Manchester Township. In Camp Hill, moderate river flooding occurred on the Yellow Breeches Creek, with a crest of 11.4 feet (3.5 m). In Howe Township, a part of Perry County, a rockslide closed U.S. Route 322 westbound. One water rescue was performed for a stranded motorist in South Londonderry Township on Pennsylvania Route 241. Flooding was reported due to poor drainage systems in Downingtown, where 3.59 in (91 mm) of rain fell. Near Philadelphia, the Newtown Square Pennsylvania Railroad Museum rescheduled Newtown Square Railroad Day, originally set for October 12, to October 19. Philadelphia International Airport reported 2.03 in (52 mm) of rainfall from the nor'easter.