Severe Thunderstorm Watch 301

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 301
NWS STORM PREDICTION CENTER NORMAN OK
705 PM CDT SAT MAY 10 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
FAR WESTERN AND SOUTHERN ILLINOIS
WESTERN KENTUCKY
EASTERN MISSOURI
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 705 PM
UNTIL 200 AM CDT.
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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
NORTHWEST OF SAINT LOUIS MISSOURI TO 45 MILES SOUTH SOUTHWEST OF
PADUCAH 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 294
...
WW 295
...
WW
297
...
WW 298
...
WW 299
...
DISCUSSION...ELEVATED STRONG/SEVERE THUNDERSTORMS...INCLUDING
SUPERCELLS...WILL SPREAD EWD ACROSS THE MID MS/LOWER OH RIVER
VALLEYS TONIGHT NORTH OF A WARM FRONT EXTENDING ACROSS THE MID
SOUTH. VERY STEEP LAPSE RATES AND ROTATING UPDRAFTS SHOULD SUPPORT
THREAT OF LARGE HAIL...ALONG WITH POTENTIAL FOR ISOLATED
STRONG/SEVERE WIND GUSTS.
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.
...EVANS