Monday, March 17, 2008
TORNADO WATCH THROUGH 6:00AM
Our entire area,with the exception of Delaware and McDonald counties, is under a newly issued tornado watch. A low level jet, (strong & steady winds at 5000') coming in from the due south in excess of 60 mph is helping to fuel widespread thunderstorm activity. Due to the wind shear present throughout the night, any individual thunderstorm has the potential to put down a tornado. We're monitoring this threat closely, though the more prevalent threat will be hail and gusty winds. Heavy rain, producing widespread flooding, continues to be of major concern as well.
The major player with present activity and the flood threat is a healthy trough to our west, depicted well on the 500mb chart above. Check out the "ripply" flow in the base of the trough. Each one of these "kinks" will spark more rounds of thunderstorms and heavy rain. The latest 5-day total precipitation map (depicted below) has us quite centrally located in the bulls eye of heavy rain. Please be mindful of flooded roads over the next few days!

Posted by Ted Zarras at 8:07 PM
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