October 2010 North American storm complex
Satellite image of the storm complex at peak intensity, on October 27, 2010. | |
| Meteorological history | |
|---|---|
| Formed | October 23, 2010 |
| Dissipated | November 5, 2010 |
| Extratropical cyclone | |
| Lowest pressure | 955.2 hPa (mbar); 28.21 inHg |
| Maximum snowfall or ice accretion | 9 inches (22.9 cm) St. Louis County, Minnesota |
| Tornado outbreak | |
| Tornadoes | 69 confirmed (Record for a continuous outbreak in October) |
| Maximum rating | EF2 tornado |
| Overall effects | |
| Damage | US$18.5 million (tornado) |
| Areas affected | Eastern two-thirds of North America and adjacent waters Ireland United Kingdom Western Europe |
Part of the 2010–11 North American winter and tornado outbreaks of 2010 | |
The October 2010 North American storm complex is the name given to a historic extratropical cyclone that impacted North America. The massive storm complex caused a wide range of weather events including a major serial derecho stretching from the Gulf Coast to the Great Lakes, a widespread tornado outbreak across the Southeast United States and Midwest and a blizzard across portions of the Canadian Prairies and the Dakotas. The cyclone's lowest minimum pressure of 955.2 mb (28.21 inHg) made it the second most intense non-tropical system recorded in the continental United States (CONUS). The lowest confirmed pressure for a non-tropical system in the continental United States was set by a January 1913 Atlantic coast storm.