[IWX_warnings] SEL6

[Severe weather warnings from NWS IWX.]

WWUS20 KWNS 201121
SEL6  
SPC WW 201121
ILZ000-INZ000-201600-


SVR STRM WTCH 626
NWS SPC 
715A THU JUL 20 2006

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

       E C IL IL
       C IN

EFFCTVE THIS THURSDAY MORNING FROM 715A UNTL NOON.

HAIL TO 1 INCH 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 55
STATUTE MI NORTH AND S OF A LN FROM 30 MI NW
OF MATTOON IL TO 40 MI E OF INPOLIS IN. 
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.

OTHER WATCH INFORMATION CNTINU WW 624 WW 625 

DISCUSSION ALTHOUGH THE BOW ECHO HAS WEAKENED SOME DURING THE PAST
COUPLE OF HOURS 50 KT WIND AT 1-2 THOUSAND FEET ABOVE THE SURFACE
ON CHI VAD WIND PROFILE INDICATES PRESENCE OF REAR INFLOW JET AND
WELL DVLPED MESOHIGH. MODERATE INSTABILITY AND LOW LEVEL JET
SHOULD SUPPORT A DMGG WIND THREAT WITH THE SYSTEM AS IT MOVES
SSEWD THROUGH THE MORNING.

AVIATION A FEW SVR STRMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STRM MOTION
VECTOR 34030.


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