

282 

WWUS20 KWNS 282150

SEL5

SPC WW 282150

NMZ000-TXZ000-290400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 205

NWS STORM PREDICTION CENTER NORMAN OK

350 PM MDT TUE APR 28 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN NEW MEXICO

       SOUTHWEST TEXAS



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

1000 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 55

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH

NORTHWEST OF TUCUMCARI NEW MEXICO TO 45 MILES WEST SOUTHWEST OF

FORT STOCKTON TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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...SEVERE THUNDERSTORMS...INCLUDING SUPERCELLS...WILL

LIKELY CONTINUE DEVELOPING INVOF DRY LINE OVER CENTRAL NM AND NEAR

HIGHER TERRAIN OVER SERN NM/SWRN TX THIS EVENING.  FEED OF MOIST

DEEP LAYER SHEAR FOR SUPERCELLS...WITH PRIMARY THREAT OF LARGE HAIL.

 ISOLATED DAMAGING WINDS AND PERHAPS A TORNADO OR TWO CAN ALSO BE

EXPECTED.



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 500. MEAN STORM

MOTION VECTOR 25025.





...EVANS

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