Sunday, June 1, 2008

WATCHES: Severe Thunderstorm Watch Number 412

WWUS20 KWNS 010707
SEL2
SPC WW 010707
COZ000-KSZ000-011400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 412
NWS STORM PREDICTION CENTER NORMAN OK
110 AM MDT SUN JUN 1 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

EAST CENTRAL AND SOUTHEAST COLORADO
SOUTHWEST KANSAS

EFFECTIVE THIS SUNDAY MORNING FROM 110 AM UNTIL 800 AM 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 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST
NORTHWEST OF LA JUNTA COLORADO TO 25 MILES EAST OF GARDEN CITY
KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 409...WW 411...

DISCUSSION...ISOLD...SLIGHTLY ELEVATED...SUSTAINED TSTMS/SUPERCELLS
OVER ERN CO...FORMING IN ELY FLOW N OF STALLED W-E FRONT...EXPECTED
TO PERSIST AND MOVE/DEVELOP ESE THROUGH LATER THIS MORNING. GIVEN
INCREASINGLY RICH QUALITY OF MOISTURE INFLOW AND PRESENCE OF
MODERATE CLOUD-LAYER SHEAR...STORMS MAY CONTINUE TO POSE A THREAT
FOR LARGE HAIL AND POSSIBLY AN ISOLD TORNADO.

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 29030.


...CORFIDI

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