Saturday, August 13, 2011

MESO: Mesoscale Discussion 1972

ACUS11 KWNS 132311
SWOMCD
SPC MCD 132310
MIZ000-OHZ000-INZ000-ILZ000-140045-

MESOSCALE DISCUSSION 1972
NWS STORM PREDICTION CENTER NORMAN OK
0610 PM CDT SAT AUG 13 2011

AREAS AFFECTED...ERN IL...NRN AND CNTRL IND...SERN MI...NWRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 775...776...777...

VALID 132310Z - 140045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
775...776...777...CONTINUES.

ISOLATED SEVERE HAIL CORES WERE WIDELY SPACED FROM JUST E OF STL
INTO NWRN IND AT 23Z AMONGST MAINLY STRONG STORMS WITH GUSTY WINDS
AND HEAVY RAIN. WITH AMPLE INSTABILITY OVER INDIANA...AND
APPROACHING VORT MAX ALOFT...STRONG TO OCCASIONALLY SEVERE STORMS
SHOULD PERSIST FOR A FEW MORE HOURS...BUT LIKELY WEAKENING GRADUALLY
ALL THE WHILE. PORTIONS OF WATCH 775 FROM NRN IND INTO NWRN OH MAY
BE EXTENDED IN TIME TO ACCOUNT FOR THE CURRENT SEVERE ACTIVITY.

ANOTHER SEPARATE BUT LONG LIVED SYSTEM WAS LOCATED OVER SERN
MI...AND THIS WILL CONTINUE TO POST A WIND THREAT AS BEFORE EXITING
INTO CANADA.

..JEWELL.. 08/13/2011

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

ATTN...WFO...CLE...ILN...DTX...IWX...GRR...IND...LOT...ILX...

LAT...LON 39248911 40058788 40908706 41628601 41738525 41858442
42358407 42588403 42978387 43038244 42648245 42238302
41828284 41398322 41028385 40308497 39608633 39178764
39248911

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