WATCHES: Severe Thunderstorm Watch Number 604

WWUS20 KWNS 191952
SEL4
SPC WW 191952
COZ000-NMZ000-OKZ000-TXZ000-200300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 604
NWS STORM PREDICTION CENTER NORMAN OK
150 PM MDT SUN JUL 19 2009

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

SOUTHEAST COLORADO
NORTHEAST NEW MEXICO
WESTERN OKLAHOMA PANHANDLE
NORTHWESTERN TEXAS PANHANDLE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 900
PM MDT.

HAIL TO 2 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 EAST AND WEST OF A LINE FROM 45 MILES NORTH
NORTHEAST OF LA JUNTA COLORADO TO 65 MILES WEST SOUTHWEST OF
CANNON AFB NEW MEXICO. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 603...

DISCUSSION...STORMS FORMING OVER THE HIGHER TERRAIN OF SERN CO AND
NERN NM ARE EXPECTED TO DEVELOP SEWD INTO THE SRN HIGH PLAINS. BULK
SHEAR OF 30-40 KT WILL SUPPORT ORGANIZED STRUCTURES INCLUDING
SUPERCELLS...BUT STORMS COULD EVENTUALLY EVOLVE INTO CLUSTERS.
ISOLATED LARGE HAIL AND DAMAGING WIND WILL BE THE PRIMARY THREATS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 32035.

...DIAL

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