SEL5
SPC WW 111323
AZZ000-NMZ000-112100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 915
NWS STORM PREDICTION CENTER NORMAN OK
625 AM MST SAT OCT 11 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
MUCH OF EASTERN ARIZONA
PARTS OF WESTERN NEW MEXICO
EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 625 AM UNTIL
200 PM MST.
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 95
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTHEAST OF
SIERRA VISTA ARIZONA TO 35 MILES NORTH NORTHWEST OF GALLUP NEW
MEXICO. 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...INTENSE SURFACE AND UPPER LOW OVER SRN INTERMOUNTAIN
REGION WITH RAPIDLY INCREASING MOISTURE/INSTABILITY SPREADING NEWD
ACROSS THE WATCH AREA. THUNDERSTORMS EXPECTED TO RAPIDLY INCREASE
IN NUMBER AND INTENSITY WITH STRONG SHEAR FAVORABLE FOR SUPERCELLS.
PRIMARY THREAT WILL BE LARGE HAIL AND DAMAGING WINDS WHICH WILL BE
ENHANCED BY THE VERY STRONG WIND PROFILES IN PLACE.
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 23040.
...HALES
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