Wednesday, July 6, 2011

WATCHES: Severe Thunderstorm Watch Number 606

WWUS20 KWNS 062056
SEL6
SPC WW 062056
COZ000-KSZ000-NEZ000-070400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 606
NWS STORM PREDICTION CENTER NORMAN OK
300 PM MDT WED JUL 6 2011

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

EASTERN COLORADO
NORTHWEST KANSAS
WESTERN AND CENTRAL NEBRASKA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 300 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 75
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST
NORTHWEST OF VALENTINE NEBRASKA TO 15 MILES SOUTHWEST OF LA JUNTA
COLORADO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

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 605...

DISCUSSION...THUNDERSTORMS ARE INCREASING OVER THE MOUNTAINS OF
CENTRAL CO INTO SOUTHEAST WY. OTHER STORMS ARE TRACKING INTO
NORTHWEST NEB FROM SD. THE WATCH AREA HAS BECOME MODERATELY
UNSTABLE WITH SUFFICIENT SHEAR FOR ORGANIZED STORMS. A FEW INTENSE
STORMS ARE POSSIBLE ACROSS THIS AREA THROUGH THE EVENING WITH
DAMAGING WINDS AND HAIL THE MAIN THREATS.

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 27025.


...HART

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