URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 346
NWS STORM PREDICTION CENTER NORMAN OK
430 PM EDT MON MAY 23 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN AND EASTERN INDIANA
NORTHERN KENTUCKY
WESTERN AND CENTRAL OHIO
LAKE ERIE
EFFECTIVE THIS MONDAY AFTERNOON FROM 430 PM UNTIL MIDNIGHT EDT.
HAIL TO 2 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST
NORTHWEST OF CLEVELAND OHIO TO 30 MILES SOUTH OF LOUISVILLE
KENTUCKY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 338...WW 339...WW
340...WW 341...WW 342...WW 343...WW 344...WW 345...
DISCUSSION...TSTMS CURRENTLY INCREASING COVERAGE AND INTENSITY
ACROSS NRN IND WILL LIKELY EVOLVE INTO A FORWARD-PROPAGATING MCS
WITH A DAMAGING WIND AND HAIL THREAT SPREADING EWD INTO OH.
ELSEWHERE...A MATURE BOW ECHO OVER SRN IL WILL CONTINUE EWD AT 40-50
KT ALONG THE OH RIVER WITH THIS SYSTEM CAPABLE OF A SWATH OF
DAMAGING WINDS IN ADDITION TO LARGE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS 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 STORM
MOTION VECTOR 27035.
...MEAD
