WATCHES: Severe Thunderstorm Watch Number 284

WWUS20 KWNS 092225
SEL4
SPC WW 092225
DEZ000-MDZ000-NCZ000-VAZ000-CWZ000-100500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 284
NWS STORM PREDICTION CENTER NORMAN OK
620 PM EDT SAT MAY 9 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTHERN DELAWARE
SOUTHERN AND EASTERN MARYLAND
EASTERN NORTH CAROLINA
EASTERN VIRGINIA
COASTAL WATERS

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 620 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 70
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH
NORTHEAST OF SALISBURY MARYLAND TO 30 MILES SOUTH SOUTHWEST OF
GOLDSBORO NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 280...WW 281...WW
282...WW 283...

DISCUSSION...SMALL NNE-SSW SQLN MCS IN CNTRL NC...AND ISOLD
SUSTAINED STORMS OVER ERN VA...EXPECTED TO CONTINUE GENERALLY ENE AT
40 KTS. WARM BOUNDARY LAYER AHEAD OF STORMS...MODERATE LARGELY
UNIDIRECTIONAL DEEP WSW FLOW...AND LARGE SCALE ASCENT AHEAD OF MID
LVL IMPULSE TOGETHER SUGGEST A THREAT FOR LOCALLY DMGG WIND GUSTS
AND SOME HAIL THROUGH MID/LATE EVE.

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 500. MEAN STORM
MOTION VECTOR 26040.

...CORFIDI

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