SEL5
SPC WW 062039
COZ000-070300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 695
NWS STORM PREDICTION CENTER NORMAN OK
240 PM MDT WED OCT 6 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN COLORADO
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 240 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 30
STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH OF
GRAND JUNCTION COLORADO TO 20 MILES SOUTH SOUTHEAST OF CORTEZ
COLORADO. 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 694...
DISCUSSION...LARGE SCALE FORCING WILL SPREAD INTO WRN CO DURING THE
NEXT COUPLE OF HOURS AS UPPER SHORTWAVE TROUGH APPROACHES AREA.
TEMPERATURES HAVE WARMED INTO THE MID/UPPER 70S AND WITH DEWPOINTS
HOLDING IN THE MID 40S...MLCAPES ARE BETWEEN 500-1000 J/KG.
EFFECTIVE DEEP LAYER SHEAR AT 40-50 KT WILL SUPPORT SUPERCELLS/SMALL
BOWS WITH A THREAT FOR SEVERE HAIL AND WIND DAMAGE.
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 21035.
...IMY
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