

047 

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

