WATCHES: Severe Thunderstorm Watch Number 740

WWUS20 KWNS 072305
SEL0
SPC WW 072305
ARZ000-KSZ000-MOZ000-OKZ000-080600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 740
NWS STORM PREDICTION CENTER NORMAN OK
605 PM CDT SUN AUG 7 2011

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

FAR NORTHWEST ARKANSAS
FAR SOUTHEAST KANSAS
SOUTHERN MISSOURI
FAR NORTHEAST OKLAHOMA

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 605 PM UNTIL
100 AM CDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 115
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES WEST
NORTHWEST OF FORT LEONARD WOOD MISSOURI TO 20 MILES SOUTH
SOUTHEAST OF GROVE OKLAHOMA. FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 734...WW 736...WW
737...WW 738...WW 739...

DISCUSSION...STRONG TSTMS EXPECTED TO CONTINUE FORMING ALONG WNW-ESE
ORIENTED OUTFLOW BOUNDARY IN SE KS/SW MO...WITH DEVELOPMENT
SUPPORTED BY VERY STEEP LOW LVL LAPSE RATES AND AMPLE LOW LVL
MOISTURE. FORWARD-PROPAGATING SEGMENTS TOWARD THE SE AND ESE APPEAR
LIKELY GIVEN ENVIRONMENTAL WIND FIELD AND INCREASING BOUNDARY LAYER
MOISTURE WITH EWD EXTENT /REF MCD 1888/. THESE SEGMENTS MAY YIELD
DMGG WIND AND MARGINALLY SVR HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
MOTION VECTOR 30025.

...CORFIDI

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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.