[IWX_warnings] SEL4

[IWX_warnings at goshenarc.org]

WWUS20 KWNS 212335
SEL4  
SPC WW 212335
INZ000-OHZ000-220500-


SVR STRM WTCH 664
NWS SPC 
635P WED JUL 21 2004

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

       C AND NE IN
       EXTREME NW OH

EFFCTVE THIS WEDNESDAY NIGHT FROM 635P UNTL MIDNIGHT.

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 ALONG AND 50 STATUTE MI
NORTH AND S OF A LN FROM 35 MI NORTH NW OF TERRE
HAUTE IN TO 75 MI E NE OF FORT WAYNE IN.

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 662 WW 663 

DISCUSSION CONV ACRS NW IN IS BEGINNING TO TAKE ON
LNAR MCS CHARACTERISTICS WITH STRMS EXP TO CNTINU EWD ON
CONVECTIVE OUTFLOW INTO NRN/C IN THIS EVE.  THE
STRMS ARE NOW LOCATED WITHIN A SWATH OF SBCAPE VALUES FROM
4000-6000 J/KG ALONG WITH 30-40 KT FLOW BELOW 500 MB AND WEAKER
FLOW ABOVE.  EXPECT DMGG WINDS TO BE THE MAIN SVR
THREAT THOUGH LRG HAIL WILL ALSO BE PSBL WITH THE MOST
INTENSE STRMS.  LATER TONIGHT THE SVR THREAT WILL BEGIN TO
DIMINISH AS STRMS MOVE E OF THE STRNGER INSTABILITY.

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 650. MEAN STRM
MOTION VECTOR 27025.


 THOMPSON

;403,0873 420,0835 403,0835 391,0873; 

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