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MESOSCALE DISCUSSION 0842
NWS STORM PREDICTION CENTER NORMAN OK
1028 PM CDT FRI MAY 15 2009
AREAS AFFECTED...PATS OF CENTRAL AND NRN INDIANA/W CENTRAL AND SWRN
OK
CONCERNING...TORNADO WATCH 309...
VALID 160328Z - 160530Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 309 CONTINUES.
SEVERE/ISOLATED TORNADO THREAT CONTINUES ACROSS CENTRAL AND ERN
INDIANA AND INTO WRN OH -- ACROSS VALID PORTIONS OF WW 309.
LATEST RADAR LOOP SHOWS A BAND OF STRONG/LOCALLY-SEVERE STORMS
MOVING ACROSS CENTRAL INDIANA ATTM. STORMS HAVE SHOWN SOME DECREASE
IN INTENSITY OVER THE PAST COUPLE OF HOURS -- LIKELY IN RESPONSE TO
A SLOW DIURNAL STABILIZATION OF THE PRE-CONVECTIVE ENVIRONMENT.
HOWEVER...WITH LATEST IND VWP REVEALING SHEAR SUFFICIENT FOR
CONTINUED STORM ORGANIZATION...THREAT FOR LOCALLY GUSTY/DAMAGING
WINDS AND/OR HAIL -- OR AN ISOLATED BRIEF TORNADO -- WILL
CONTINUE...LIKELY FOR THE NEXT COUPLE OF HOURS.
..GOSS.. 05/16/2009
ATTN...WFO...ILN...IWX...IND...
LAT...LON 39228747 41098592 40708381 38798342 39228747
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