[IWX_warnings] SEL6

[IWX_warnings at goshenarc.org]

WWUS20 KWNS 212015
SEL6  
SPC WW 212015
ILZ000-INZ000-MIZ000-LMZ000-220300-


SVR STRM WTCH 656
NWS SPC 
315P THU JUL 21 2005

THE NWS SPC HAS ISSUED A
SVR STRM WATCH FOR PORTIONS OF 

       E C IL
       N AND W IN
       EXTREME S LWR MI
       LK MI

EFFCTVE THIS THURSDAYP AND EVE FROM 315P UNTL
1000P.

HAIL TO 1.5 INCHES IN DIAMETER STRM WIND GUSTS TO 70
MPH AND DNGRS LIGHTNING ARE PSBL IN THESE AREAS.

THE SVR STRM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MI E AND WEST OF A LN FROM 55 MI E NE
OF S BEND IN TO 5 MI SW OF MATTOON IL. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLN UPDATE (WOUS64 KWNS WOU6).

REMEMBER A SVR STRM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SVR STRMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WX CONDITIONS AND LISTEN FOR LATER STMENTS AND PSBL
WARNINGS. SVR STRMS CAN AND OCCASIONALLY DO PRDCE
TRNDOES.

DISCUSSION A PRONOUNCED MCV AND ASSOCIATED COLD POOL WILL CNTINU
TO MOVE ESEWD THROUGH THE EVE FROM IL TOWARD IN.  STRNG
INSTABILITY IS PRESENT IN ADVANCE OF THIS SYSTEM WHILE 35-50 KT
MID LEVEL FLOW HAS BEEN OBSERVED ON THE SWRN PERIPHERY OF THE MID
LEVEL CIRCULATION.  EXPECT THE INITIAL STRMS IN NW IN TO
INCRS IN COVERAGE THE NEXT SEVERAL HOURS WITH EVENTUAL
DVLPMENT EXP SWWD TOWARD ERN IL.  THOUGH ISOLATED LRG HAIL
COULD OCCUR WITH THE STRNGEST UPDRAFTS DMGG OUTFLOW WINDS
WILL BE THE PRIMARY THREAT.

AVIATION A FEW SVR STRMS 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 550. MEAN STRM
MOTION VECTOR 28025.


 THOMPSON

;415,0835 392,0870 392,0894 415,0864; 

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