06/04/2013 05:56 PM EDT
WW 276 SEVERE TSTM CO KS 042155Z - 050500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 276
NWS STORM PREDICTION CENTER NORMAN OK
355 PM MDT TUE JUN 4 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN COLORADO
WESTERN KANSAS
* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING
FROM 355 PM UNTIL 1100 PM MDT.
* PRIMARY THREATS INCLUDE...
SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY
LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY A FEW
TORNADOES POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY
ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE
FROM 45 MILES NORTH NORTHWEST OF GOODLAND KANSAS TO
5 MILES EAST SOUTHEAST OF ELKHART KANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
DISCUSSION...
THUNDERSTORM INITIATION IS UNDERWAY NEAR THE COLORADO
FRONT RANGE...AND FURTHER DEVELOPMENT AND UPSCALE CONVECTIVE
GROWTH IS EXPECTED LATE THIS AFTERNOON AND EVENING...
AS IT SPREADS EASTWARD INTO THE HIGH PLAINS...WITHIN A
MODERATELY UNSTABLE AND STRONGLY SHEARED ENVIRONMENT.
A FEW SUPERCELLS ARE LIKELY BEFORE ACTIVITY DEVELOPS
INTO A CONSOLIDATING AND ORGANIZING CLUSTER...ACCOMPANIED
BY AN INCREASING RISK FOR DAMAGING WIND GUSTS...
IN ADDITION TO THE RISK FOR LARGE HAIL. ONE OR TWO...MAINLY
RELATIVELY SHORT-LIVED...TORNADOES MAY NOT BE COMPLETELY OUT
OF THE QUESTION.
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 29020. ...KERRRead more
06/04/2013 05:56 PM EDT
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