
MESOSCALE DISCUSSION 1246
NWS STORM PREDICTION CENTER NORMAN OK
0759 PM CDT FRI JUN 19 2009
AREAS AFFECTED...PARTS OF NERN MO AND PORTIONS OF NRN AND CENTRAL IL
CONCERNING...SEVERE THUNDERSTORM WATCH 480...
VALID 200059Z - 200230Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 480
CONTINUES.
SEVERE POTENTIAL CONTINUES ACROSS WW 480.
LATEST RADAR LOOP SHOWS WIDESPREAD THUNDERSTORMS ACROSS PARTS OF IL
ATTM...PRIMARILY WITHIN TWO BANDS -- ONE EXTENDING FROM NEAR CHICAGO
SWWD INTO W CENTRAL IL/NERN MO...AND A SECOND NOW FROM NEAR THE
IL/INDIANA LINE SWWD INTO SRN IL. WHILE THE MORE WWD LINE --
ROUGHLY ALONG THE SURFACE COOL FRONT -- HAS REMAINED LESS
VIGOROUS...THE INITIAL LINE NOW MOVING ACROSS SRN IL -- AND INTO WRN
INDIANA WHERE TORNADO WATCH 483 REMAINS IN EFFECT -- HAVE REMAINED
SEVERE...WITH SEVERAL RECENT SEVERE REPORTS FROM THE IL/INDIANA
REGION. WHILE THIS THREAT SHIFTS INTO INDIANA WITH TIME -- OUT OF
WW 480...SOME POTENTIAL REMAINS FOR STORMS WITHIN THE FRONTAL BAND
TO BECOME LOCALLY-SEVERE OVER THE NEXT COUPLE OF HOURS.
..GOSS.. 06/20/2009
ATTN...WFO...IWX...IND...PAH...LOT...ILX...LSX...DVN...