SEL3
SPC WW 062048
NEZ000-SDZ000-070400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 353
NWS STORM PREDICTION CENTER NORMAN OK
345 PM CDT WED JUN 6 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF WESTERN AND NORTHERN NEBRASKA
MUCH OF CENTRAL AND PARTS OF WESTERN SOUTH DAKOTA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 345 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH OF MULLEN
NEBRASKA TO 30 MILES NORTH NORTHWEST OF MOBRIDGE SOUTH DAKOTA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...CONTINUE...WW 352...
DISCUSSION...SEVERE THUNDERSTORMS WILL DEVELOP RAPIDLY AHEAD OF THE
DEEPENING SURFACE LOW AND UPPER TROUGH. WITH A VERY STRONG WIND
PROFILE IN PLACE AND MLCAPES INCREASING TO IN EXCESS OF 2000
J/KG...SUPERCELLS WILL BE LIKELY. TORNADOES AND VERY LARGE HAIL
WILL BE ASSOCIATED WITH SUPERCELLS...WITH STORMS EVOLVING INTO A
SQUALL LINE AFTER 00Z AS STRONG COLD FRONT MOVES ACROSS WATCH AREA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 23035.
..HALES
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