SEL8
SPC WW 020631
NEZ000-021400-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 418
NWS STORM PREDICTION CENTER NORMAN OK
130 AM CDT MON JUN 2 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND CENTRAL NEBRASKA
EFFECTIVE THIS MONDAY MORNING FROM 130 AM UNTIL 900 AM CDT.
HAIL TO 2.5 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 90
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST
NORTHWEST OF VALENTINE NEBRASKA TO 40 MILES SOUTHEAST OF NORTH
PLATTE NEBRASKA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
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...SLIGHTLY ELEVATED SUPERCELLS THAT HAVE DEVELOPED ESE
INTO NW NEB OVER THE LAST TWO HOURS LIKELY WILL PERSIST AND SLOWLY
INTENSIFY AS THEY MOVE/DEVELOP FARTHER ESE ALONG 850-700 MB WARM
FRONT. THE STORMS MAY INCREASE MORE MARKEDLY IN COVERAGE AND
STRENGTH TOWARD SUNRISE AND THEREAFTER OVER CNTRL OR S CNTRL NEB AS
THE ACTIVITY ENCOUNTERS RICHER PLUME OF 925-850 MB MOISTURE SURGING
NWD INTO THE REGION ALONG LLJ.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 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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