SEL5
SPC WW 110052
COZ000-KSZ000-NEZ000-110600-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 765
NWS STORM PREDICTION CENTER NORMAN OK
650 PM MDT WED AUG 10 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EXTREME NORTHEAST AND EAST CENTRAL COLORADO
NORTHWEST KANSAS
EXTREME SOUTHWEST NEBRASKA
EFFECTIVE THIS WEDNESDAY NIGHT FROM 650 PM UNTIL MIDNIGHT MDT.
HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EITHER SIDE OF A LINE FROM 35 MILES NORTHWEST OF
BURLINGTON COLORADO TO 50 MILES SOUTH SOUTHEAST OF MCCOOK
NEBRASKA. 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.
OTHER WATCH INFORMATION...CONTINUE...WW 764...
DISCUSSION...SUPERCELLS OVER NERN CO ARE EXPECTED TO SPREAD SEWD
THIS EVENING INTO THE LOW LEVEL MOIST AXIS WHERE MLCAPE OF 1000 J/KG
IS COMMON. STRONG WESTERLY MID/UPPER LEVEL FLOW /40 KT AT 500 MB/
AND ASSOCIATED DEEP LAYER SHEAR OF 45-50 KT WILL PROMOTE CONTINUED
DEVELOPMENT OF STRONG/SEVERE STORMS INCLUDING SUPERCELLS.
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 450. MEAN STORM
MOTION VECTOR 31025.
...WEISS
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