The U.S. severe weather downturn in 2013 in one map

Severe weather – compared to normal – across the country is down, way down in 2013.

The map below shows, as a percentage, the number of severe thunderstorm and tornado warnings issued by the National Weather Service (NWS) compared to average in different geographic zones, year to date.

Notice the sprawling area east of the Plains with below average numbers of severe weather warnings.  The Tennessee Valley, in particular, has repelled violent storms, with less than half the usual number of warnings issued.

By contrast, from the western Plains through the Rockies, the NWS has issued more severe weather alerts than normal.

Overall, the balance of the country has enjoyed a relative reprieve from the prospect of violent storms.

Related: Extreme weather snoozer: no hurricanes, and low tornado numbers in 2013

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