Wednesday, May 25, 2011

Wednesday Afternoon Update

The heavy rain from this morning has moved north but not before close to two inches was picked up in some locations.  A strong low pressure system is now moving into eastern Kansas/western Missouri early this afternoon.  A warm front extends just south of the Stateline where temperatures have reached the low 70s and dew points in the low to mid 60s.  A slight risk still remains for north-central Illinois for this afternoon while a bigger threat for severe weather lies through the mid-Mississippi River Valley. 

Current water vapor continues to show a dry push of air on the backside of the upper low which has helped to clear skies through Illinois.  In fact, we're already starting to see storms fire ahead of the low and cold front.  The clouds are starting to thin some across northern Illinois and we may even be able to squeeze out some sunshine later this afternoon.  The warm front probably won't make it as far north as the Wisconsin/Illinois state line but it may touch some of our southern counties: Lee, Ogle and DeKalb and I wouldn't be suprised if some kind of watch were issued later this afternoon.  We're still going to watch for the development of thunderstorms, especially along the front and if we clear out, later this afternoon.  While the biggest threat will stay to the south hail and gusty winds could occur through those southern counties.  Residents in our southern viewing area should be alert for severe weather later this afternoon/evening.  North of the front the storms will probably be more elevated with hail being the primary threats.

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