...LOWER OH AND TN VALLEYS...
STRONG LOW LEVEL WAA COMBINED WITH COLD MID LEVEL TEMPERATURES/
STEEP LAPSE RATES SPREADING ACROSS THIS REGION TUESDAY EVENING/
NIGHT WITHIN EXIT REGION OF A 100+ KT MID LEVEL JET NOSING INTO THIS
AREA SHOULD SUPPORT ELEVATED TSTMS. THE STEEP LAPSE RATES WITH
ACTIVITY ROOTED AROUND 850 MB AND EFFECTIVE BULK SHEAR 30-35 KT IS
EXPECTED TO SUPPORT AN ISOLATED THREAT FOR HAIL... POTENTIALLY UP TO
1 INCH. THIS ACTIVITY WILL DEVELOP EWD ACROSS SRN IND/KY/TN TUESDAY
NIGHT.
From Louisville NWS:
A strong weather system will affect the Ohio Valley beginning today and lasting into Wednesday. Low pressure over Missouri will rapidly intensify and move northeast to Chicago. Rain is expected across Kentucky and southern Indiana starting this morning...then will increase in intensity tonight. Rainfall amounts will likely exceed one inch in most locations. Along with the heavy rain...a few thunderstorms are also possible, especially across south central Kentucky late this evening. Strong gusty winds are possible with any thunderstorm development.
A cold front will move through the region Wednesday morning ushering in much cooler air. The low over the Chicago area will also help to create very gusty winds with the falling temperatures. Wind gusts in excess of 50 mph are possible Wednesday. Temperatures will start off Wednesday in the mid 40s, but will fall into the mid 30s by afternoon. There may be enough moisture behind the cold front to produce a few snow showers Wednesday...but accumulations if any, will be light.
Now time to sit and watch everything unfold tonight.... would be nice to get a severe event in December....
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