The U.S. has endured a destructive start to 2017 from the multiple severe weather outbreaks since January. There have been 5,372 preliminary reports of severe weather across the United States in 2017 through April 8.
This is more than than double the average of 2,274 for the same period of time during the past 10 years (2007-2016). In that decade, only 2008 had about the same number of severe weather reports by this point in the year with 5,242.
The animation below shows how the occurrences of wind damage, large hail and tornadoes have piled up month-by-month this year. Portions of the South have been hit the hardest, but the Midwest has also seen a high concentration of severe weather reports.
Seventy-one of 100 days have featured one or more reports of severe weather from Jan. 1-April 10. Monday marked the 26th consecutive day with at least one severe thunderstorm report logged in the U.S.
Seven states have yet to see a report of severe weather in 2017: Alaska, Connecticut, Hawaii, Maine, Rhode Island, South Dakota and Vermont.
Severe thunderstorms are largely responsible for the record number of U.S. billion-dollar weather-related disasters in the first three months of 2017. Three separate severe weather outbreaks have caused damage of a billion dollars or more, NOAA says.
This year has also been unusual in how far north severe weather, including tornadoes, has occurred for so early in the year:
- Massachusetts was hit by two EF1 tornadoes Feb. 25, one near Conway and another near Goshen. No other February tornadoes are known to have struck the state during that month in the historical record.
- Just over a week later, Minnesota experienced a similar rare early-season event when severe thunderstorms spawned three EF1 tornadoes March 6. Those were the earliest known twisters for a calendar year in the state by nearly two weeks.