SEL4
SPC WW 222022
COZ000-KSZ000-230400-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 444
NWS STORM PREDICTION CENTER NORMAN OK
225 PM MDT FRI JUN 22 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN COLORADO
FAR WESTERN KANSAS
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 225 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 80
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF
AKRON COLORADO TO 20 MILES SOUTH SOUTHEAST OF SPRINGFIELD
COLORADO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 442...WW 443...
DISCUSSION...SLOW MOVING CLUSTERS OF STORMS WILL PERSIST ACROSS WW
THIS EVENING...ENHANCED BY WEAK MID LEVEL IMPULSE NOW MOVING SEWD
ACROSS NRN CO. AIR MASS IS MODERATELY UNSTABLE OVER THE HIGH PLAINS
AND SUFFICIENT PARAMETERS REMAIN IN PLACE FOR LARGE HAIL AND
DAMAGING WINDS WITH THE STRONGER CORES. ACTIVITY MAY EVOLVE INTO A
SLOW MOVING MCS INTO E-CENTRAL/SERN CO THROUGH THE EVENING.
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 34015.
..EVANS
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