[IWX_warnings] SEL9

[Severe weather warnings from NWS IWX.]

WWUS20 KWNS 140124
SEL9  
SPC WW 140124
ILZ000-INZ000-WIZ000-LMZ000-140800-


SVR STRM WTCH 179
NWS SPC 
825P THU APR 13 2006

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

       N IL
       EXTREME NW IN
       C AND SE WI
       LK MI

EFFCTVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 825 PM
UNTL 300A.

HAIL TO 2 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 80
STATUTE MI E AND WEST OF A LN FROM 30 MI NORTH
NE OF OSHKOSH WI TO 45 MI S SW OF
MARSEILLES IL.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLN UPDATE (WOUS64 KWNS WOU9).

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 178 

DISCUSSION CLUSTER OF SUPERCELLS IN ERN IA WILL CNTINU EWD
ACRS NRN IL TONIGHT WITH AN INCREASING THREAT FOR WIND DMG AS
THE STRMS MERGE INTO A LRGR MCS AND MOVE INTO AN ENVIRONMENT WITH
RESIDUAL STEEP L0W-LEVEL LAPSE RATES.  THE LRG HAIL THREAT WILL
ALSO CNTINU GIVEN THE FEED OF STRNG INSTABILITY FROM THE SW. 
FARTHER N A SEPARATE CLUSTER OF STRMS IS BEGINNING TO DVLP
NR EAU AND THIS CONV SHOULD SPREAD EWD/ESEWD ALONG AND N
OF THE SURFACE WARM FRONT.  THE PRIMARY THREAT THIS AREA WILL BE
LRG HAIL WITH STRMS BASED ABOVE THE SURFACE.

AVIATION A FEW SVR STRMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STRM
MOTION VECTOR 27035.


 THOMPSON

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