National Weather Service United States Department of Commerce

Winter Storm Expected

A strong storm system is forecast to impact southern and east central South Dakota Sunday through Monday morning. The main hazard will be snowfall accumulations of 4-6 or more inches, and reduced visibility when falling snow combines with wind gusts to 30 mph by Monday morning. Read More >

 

2013 South Dakota Tornadoes

Below is a plot of the tornadoes which occurred in South Dakota in 2013 (click to enlarge):

Below is a brief summary of the 2013 tornado season:

·         2013 was a relatively quiet year with only 14 tornadoes reported across the State

·         Here is the breakdown of 2013 tornadoes by EF-Scale:

o   EF0 = 11

o   EF1 = 3

o   EF2 = 0

o   EF3 = 0

o   EF4 = 0

o   EF5 = 0

·         South Dakota averages about 35 tornadoes per year (based on 2001-2010 data)

·         South Dakota has now seen a below average number of tornadoes since 2010 (click to enlarge)

 

Below is the 10 year total of tornado fatalities by state (2001-2010):

http://www.spc.noaa.gov/wcm/ustormaps/2001-2010-fatals.png

 

Fortunately – South Dakota has not had a directly related tornado death since 1999!  Hopefully that trend continues for years to come!