WATCHES: Severe Thunderstorm Watch Number 280

WWUS20 KWNS 051950
SEL0
SPC WW 051950
NMZ000-TXZ000-060300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 280
NWS STORM PREDICTION CENTER NORMAN OK
250 PM CDT WED JUN 5 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NOERTHEAST NEW MEXICO
NORTHWEST TEXAS

* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 250 PM
UNTIL 1000 PM CDT.

* PRIMARY THREATS INCLUDE...
SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH LIKELY
SEVERAL VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER
POSSIBLE
A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES WEST
NORTHWEST OF LAS VEGAS NEW MEXICO TO 40 MILES SOUTH SOUTHEAST OF
CHILDRESS TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 279...

DISCUSSION...STORMS HAVE INCREASED AS ANTICIPATED IN MOIST
POST-FRONTAL UPSLOPE FLOW ACROSS NERN NM THIS AFTERNOON. LOW LEVEL
ESELY FLOW TOPPED BY MODEST WLY FLOW ALOFT HAS ESTABLISHED
SUFFICIENT SHEAR FOR UPDRAFTS TO ACQUIRE SOME ROTATION WITH LARGE
HAIL POSSIBLE. MOST STORM SCALE GUIDANCE SUGGESTS EVENTUAL EVOLUTION
INTO A FORWARD PROPAGATING MCS AS UPDRAFTS CONGEAL IN THE PRESENCE
OF FAVORABLE LOW LEVEL INFLOW AND CONTINUING MODEST WLY FLOW ALOFT.
WIND DAMAGE POTENTIAL MAY INCREASE INTO THE EARLY EVENING AS THIS
COMPLEX OF STORMS IS SUSTAINED EAST ACROSS THE TX/NM BORDER WITH
MESOSCALE ASCENT INTO THE COMPLEX ENHANCED ALONG WEST-TO-EAST
FRONTAL/OUTFLOW SEGMENTS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28035.


...CARBIN

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