Friday, March 2, 2012

Mesoscale Discussion 10:03:49.3586671

AREAS AFFECTED...PARTS OF E CNTRL IL...CNTRL INDIANA

CONCERNING...SEVERE THUNDERSTORM WATCH 55...

VALID 021602Z - 021730Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 55
CONTINUES.

PORTIONS OF WW HAVE ALREADY BEEN UPGRADED TO A TORNADO WATCH. AREAS
FARTHER TO THE NORTH AND EAST OF THE SEVERE THUNDERSTORM WATCH WILL
NEED TO BE MONITORED FOR ADDITIONAL WWS LATER THIS AFTERNOON.

AS THE DEEPENING SURFACE CYCLONE LIFTS NORTHEAST OF THE ST. LOUIS MO
AREA INTO NORTHEAST INDIANA BETWEEN NOW AND 19-21Z...AN AREA OF
ENHANCED WARM ADVECTION ALONG A NORTHEASTWARD ADVANCING WARM FRONT
TO ITS EAST MAY BECOME OF FOCUS FOR INCREASING SEVERE POTENTIAL
DURING THE NEXT FEW HOURS. THIS MAY IMPACT THE MATTOON/CHARLESTON
AND TERRE HAUTE AREAS AS EARLY AS 18Z-19Z...BEFORE DEVELOPING
NORTHEASTWARD INTO CENTRAL INDIANA. RAPID BOUNDARY LAYER
DESTABILIZATION IN THE PRESENCE OF STRONG SHEAR...INCLUDING LARGE
CLOCKWISE CURVED LOW-LEVEL HODOGRAPHS... WILL SUPPORT INCREASING
POTENTIAL FOR TORNADIC DEVELOPMENT...INCLUDING THE RISK FOR
PARTICULARLY STRONG AND DAMAGING TORNADOES...IN ADDITION TO A
CONTINUING RISK FOR LARGE HAIL.

..KERR.. 03/02/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...IND...LOT...ILX...

LAT...LON 39378869 40168828 40658714 40048614 39148581 38968688
38978824 39378869