WATCHES: Severe Thunderstorm Watch Number 437

WWUS20 KWNS 232007
SEL7
SPC WW 232007
ARZ000-KSZ000-MOZ000-240300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 437
NWS STORM PREDICTION CENTER NORMAN OK
305 PM CDT TUE JUL 23 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND CENTRAL ARKANSAS
SOUTHEAST KANSAS
SOUTHWEST MISSOURI

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 305 PM UNTIL
1000 PM CDT.

* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS
TO 80 MPH POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 3
INCHES IN DIAMETER POSSIBLE
A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF
SPRINGFIELD MISSOURI TO 25 MILES SOUTH SOUTHEAST OF HOT SPRINGS
ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 435...WW 436...

DISCUSSION...WIDELY SCATTERED SEVERE THUNDERSTORMS ARE ONGOING
ACROSS THE OZARKS REGION...IN THE PRESENCE OF THERMODYNAMIC PROFILES
CHARACTERIZED BY FAIRLY STEEP MID-LEVEL LAPSE RATES...LARGE CAPE AND
A HOT/MOIST BOUNDARY LAYER. LOCALIZED STRONG DOWNBURSTS AND LARGE
HAIL WILL REMAIN POSSIBLE AT LEAST ANOTHER FEW HOURS...WITH ACTIVITY
POSSIBLY EVENTUALLY CONSOLIDATING ALONG A REMNANT OUTFLOW BOUNDARY
ACROSS NORTHWEST ARKANSAS...BEFORE DEVELOPING SOUTHWARD WITH BROADER
SCALE DAMAGING WIND POTENTIAL EARLY THIS EVENING.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 32020.


...KERR

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