THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT EXCESSIVE TEMPERATURES... HIGH TEMPERATURES IN THE 90S TO AROUND 100...COMBINED WITH DEW POINT TEMPERATURES AVERAGING IN THE UPPER 60S TO MID 70S...WILL GIVE HEAT INDEX VALUES IN THE UPPER 90S TO AROUND 105 DEGREES THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HEAT AND HUMIDITY WILL PERSIST INTO TUESDAY. AFTERNOON HEAT INDEX VALUES WILL ONCE AGAIN AVERAGE IN THE UPPER 90S TO AROUND 105 DEGREES. SOME SLIGHT MODERATION IN THE HEAT AND HUMIDITY WILL OCCUR FROM WEDNESDAY ONWARD. HOWEVER...AFTERNOON HEAT INDEX VALUES WILL STILL BE WIDESPREAD IN THE 90S ALL THE WAY FROM WEDNESDAY THROUGH THE UPCOMING WEEKEND. IN ADDITION ON WEDNESDAY AFTERNOON...THERE IS A CHANCE THAT HEAT INDEX VALUES MAY REACH 100 DEGREES ALONG AND SOUTH OF A SIOUX CITY TO SPENCER IOWA LINE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.
Posted on: Tue, 27 Aug 2013 07:35:41 +0000
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