Monday, April 5, 2010

Storm threat today and tomorrow

We've been talking about it for the past several days the potential for stronger thunderstorms to move through tonight and tomorrow across the Stateline.  The storms that fired Sunday evening formed along a weak boundary that is now off to the east.  A warm front sits to the south through Missouri and is the focus for storm development this morning.  The warm front is expected to move north as the afternoon progresses bringing the storm threat across the Stateline later this evening and overnight.  Dew points right now are not all that impressive as the bulk of the moisture remains to the south.  As the evening moves on, the low level jet (stronger winds in the lower levels of the atmosphere) is expected to bring the moisture north with the front.  Storms will likely develop as the front moves through thanks to the sunshine (instability) we're seeing this morning, the front providing the lift and the additional moisture.  If any of the storms do develop and reach severe limits, hail and wind will be the primary threat.  Although if storms form right along the front, isolated tornadoes can't be ruled out (this will primarily be to the southwest of us).  Storms will likely be ongoing Tuesday morning as the warm front stalls just to the north.  With it being so close, thunderstorms may be likely in the afternoon before a cold front moves through Tuesday into Wednesday.  Another threat with any of the storms that move through will be the heavy rainfall and flooding.  Some of the models are bringing in over 2 inches of rain by Wednesday morning!  That will be something else we'll be watching.  The Storm Prediction Center does have the entire Stateline in a slight risk today and tomorrow.  We'll keep you updated through the afternoon and evening so be sure to keep checking back.

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