Friday, May 21, 2010

WATCHES: Severe Thunderstorm Watch Number 198

WWUS20 KWNS 211653
SEL8
SPC WW 211653
ALZ000-GAZ000-220000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 198
NWS STORM PREDICTION CENTER NORMAN OK
1250 PM EDT FRI MAY 21 2010

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

PARTS OF EASTERN ALABAMA
PARTS OF WESTERN AND CENTRAL GEORGIA

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1250 PM UNTIL
800 PM 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 EITHER SIDE OF A LINE FROM 25 MILES WEST NORTHWEST
OF AUBURN ALABAMA TO 60 MILES NORTHEAST OF MOULTRIE GEORGIA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU8).

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.

DISCUSSION...MATURE...BOWING MCS IS EXPECTED TO CONTINUE SEWD ALONG
LOW-LEVEL BAROCLINIC ZONE TODAY WHERE A MOIST BOUNDARY LAYER AND
DAYTIME HEATING WILL CONTRIBUTE TO MLCAPE OF 2000-2500 J/KG.
DEEP-LAYER WIND SHEAR IS NOT OVERLY STRONG...BUT SUFFICIENT TO
MAINTAIN THE SYSTEM SEWD WITH THE POTENTIAL FOR
ACCELERATION/FORWARD-PROPAGATION WITH AN ASSOCIATED DAMAGING WIND
THREAT.

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 29035.


...MEAD

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.

No comments: