WATCHES: Severe Thunderstorm Watch Number 619

WWUS20 KWNS 200034
SEL9
SPC WW 200034
VAZ000-CWZ000-200600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 619
NWS STORM PREDICTION CENTER NORMAN OK
835 PM EDT SUN AUG 19 2007

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

SOUTHEASTERN VIRGINIA
COASTAL WATERS

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 835 PM UNTIL
200 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 40
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST OF
RICHMOND VIRGINIA TO 50 MILES NORTHEAST OF NORFOLK VIRGINIA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 617...WW 618...

DISCUSSION...TSTMS DEVELOPING ALONG SHALLOW WNW/ESE-ORIENTED
STATIONARY FRONT MAY POSE A THREAT FOR HAIL AND POSSIBLY WET
MICROBURSTS AS WAA FOCUSES OVER REGION THROUGH LATE EVENING /REF MD
1808/. MODERATELY STRONG WITH FIELD WITH MODERATE VEERING IN THE
VERTICAL SUGGESTS POTENTIAL FOR A FEW SUSTAINED STORMS/POSSIBLE
SUPERCELLS.

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 28025.

..CORFIDI

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@PO.UIUC.EDU with
"unsub wx-storm" in the body of your message. For more information write chris@lib.siu.edu.