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WWUS20 KWNS 302209

SEL1

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 211

NWS STORM PREDICTION CENTER NORMAN OK

605 PM EDT MON APR 30 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN INDIANA

       CENTRAL AND EASTERN KENTUCKY

       WESTERN AND CENTRAL OHIO

       LAKE ERIE



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 605 PM UNTIL

100 AM EDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHEAST OF

FINDLAY OHIO TO 60 MILES EAST SOUTHEAST OF BOWLING GREEN

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 208...WW 209...WW 210...



DISCUSSION...NE-SE IND-KY SQLN EXPECTED TO CONTINUE EWD AT ABOUT 30

KTS.  AREA VWP DATA N OF THE OH RVR SHOW 30-50 KT UNIDIRECTIONAL

WSWLY 700-500 MB FLOW...WITH SOMEWHAT WEAKER SPEEDS FARTHER S.

COUPLED WITH 1000-1500 J/KG CAPE AHEAD OF LINE...SETUP MAY CONTINUE

TO YIELD EMBEDDED ROTATING STRUCTURES/TRANSIENT SUPERCELLS WITH A

RISK FOR DMGG WIND...MARGINALLY SVR HAIL...AND PERHAPS A BRIEF

TORNADO OR TWO.  THIS THREAT MAY BUILD E ALONG FRONT STALLED ROUGHLY

W-E ACROSS NRN OH LATER THIS EVE AS UPR IMPULSE NOW CROSSING THE MID

MS VLY CONTINUES ENEWD.



AVIATION...A FEW SEVERE THUNDERSTORMS 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 450. MEAN STORM

MOTION VECTOR 24030.





...CORFIDI

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