Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. 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):

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

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Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

South Dakota Tornadoes - 2013