7:51 PM Fri, Jun 27, 2008 | Permalink
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A line of strong thunderstorms with a history of damaging winds and hail is moving closer to Kentuckiana tonight. A Severe Thunderstorm Watch has been in effect for areas in southern Indiana and western Kentucky. This will be moving quickly east as the night progresses and the storms move closer. This line is associated with what we call a "vort max", basically a wave in the middle levels of the atmoshpere. This vort is a strong kicker, helping to lift up the unstable air and create these storms.
Tomorrow, it's a different story. We'll have cold front at the surface to do the the heavy lifting and storm producing. With an unstable atmosphere still in place, damaging winds and hail will again be possible. Storms could be more widespread on Saturday and produce heavier rainfall. 1-3" rainfall totals are possible by Sunday morning.
After all this mess though, next week looks like a beauty!
As expected the watch has been extended east for all of Kentuckiana through 2am...
This is the latest watch message...
The National Weather Service has issued Severe Thunderstorm Watch
625 in effect until 2 am EDT /1 am CDT/ Saturday for the
following areas
In Indiana this watch includes 6 counties
In south central Indiana
Clark in Floyd in Harrison in
Jefferson in Scott in Washington in
In Kentucky this watch includes 36 counties
In east central Kentucky
Anderson KY Bourbon KY Boyle KY
Clark KY Fayette KY Franklin KY
Garrard KY Harrison KY Jessamine KY
Madison KY Mercer KY Nicholas KY
Scott KY Woodford KY
In north central Kentucky
Breckinridge KY Bullitt KY Hardin KY
Henry KY Jefferson KY LaRue KY
Meade KY Nelson KY Oldham KY
Shelby KY Spencer KY Trimble KY
Washington KY
In south central Kentucky
Butler KY Casey KY Edmonson KY
Grayson KY green KY Hart KY
Lincoln KY Marion KY Taylor KY
This includes the cities of... Bardstown... Bedford... Brandenburg...
Brownsville... Campbellsville... Carlisle... Corydon... Cynthiana...
Danville... Elizabethtown... Fort Knox... Frankfort... Georgetown...
Greensburg... Hardinsburg... Harrodsburg... Hodgenville...
Jeffersonville... La Grange... Lancaster... Lawrenceburg... Lebanon...
Leitchfield... Lexington... Liberty... Louisville... Madison...
Morgantown... Mount Washington... Munfordville... New Albany...
New Castle... Nicholasville... Paris... Richmond... Salem...
Scottsburg... Shelbyville... Shepherdsville... Springfield...
Stanford... Taylorsville... Versailles and Winchester.
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 623
NWS STORM PREDICTION CENTER NORMAN OK
515 PM CDT FRI JUN 27 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN ILLINOIS
SOUTHERN INDIANA
NORTHWEST KENTUCKY
SOUTHEAST MISSOURI
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 515 PM UNTIL
1000 PM CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH
NORTHWEST OF EVANSVILLE INDIANA TO 35 MILES SOUTHEAST OF
CARBONDALE ILLINOIS. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 618...WW 619...WW
620...WW 621...WW 622...
DISCUSSION...SRN END OF MCV-INDUCED SQLN WILL CONTINUE E INTO THIS
WW THROUGH MID EVENING. CONDITIONS FAVORABLE FOR SMALL SCALE BOWS
WITH SVR WINDS/MARGINALLY SVR HAIL MAY PERSIST...ESPECIALLY IN NRN
HALF OF WW.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25025.
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