October 2013 North American storm complex

October 2013 North American storm complex
Category 3 "Major" (RSI/NOAA: 9.78)
The storm complex on October 5
TypeWinter storm, Blizzard, Tornado outbreak, Flood
FormedOctober 3, 2013
DissipatedOctober 7, 2013
Highest gust71 mph (114 km/h)[1]
Lowest pressure1000 mb (29.53 inHg)
Tornadoes
confirmed
22
Max. rating1EF4 tornado
Duration of
tornado outbreak2
3 days, 16 hours, 10 minutes
Maximum snowfall
or ice accretion
58 inches (1.5 m) Lead, South Dakota[2]
Fatalities3 fatalities[4]
Damage$100 million[3]
Areas affectedIntermountain West
Midwestern United States

1Most severe tornado damage; see Enhanced Fujita scale
2Time from first tornado to last tornado

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.[5]

  1. ^ Kwan-Yin Kong (October 4, 2013). "Storm Summary Number 3 for Northern Rockies and Northern Plains Winter Storm". Hydrometeorological Prediction Center. National Oceanic and Atmospheric Administration. Archived from the original on December 18, 2013. Retrieved October 4, 2013.
  2. ^ John Lee McLaughlin (October 8, 2013). "October 3–5, 2013 Blizzard over northeast Wyoming and western South Dakota". National Weather Service. National Oceanic and Atmospheric Administration. Retrieved October 16, 2013.
  3. ^ October 2013 Global Catastrophe Report, Aon, November 2013
  4. ^ Dirk Lammers (October 4, 2013). "Storm Brings Snow, Tornadoes to Great Plains". ABC News. Associated Press. Retrieved October 4, 2013.
  5. ^ Winter Storm Atlas: Snow Totals and Photos from South Dakota, Wyoming and Montana, The Weather Channel, October 15, 2013