SEL5
SPC WW 302054
MNZ000-NDZ000-310300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 635
NWS STORM PREDICTION CENTER NORMAN OK
355 PM CDT MON AUG 30 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF NORTHWEST MINNESOTA
MUCH OF EASTERN NORTH DAKOTA
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 355 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES WEST NORTHWEST OF
ROSEAU MINNESOTA TO 75 MILES SOUTH SOUTHWEST OF JAMESTOWN NORTH
DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
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 633...WW 634...
DISCUSSION...WITH SURFACE LOW TRACKING NEWD TOWARD ERN ND AND
FRONTAL BOUNDARY ACROSS THE WATCH...FAVORABLE SHEAR WILL BE
AVAILABLE FOR SUPERCELL DEVELOPMENT. MDTLY UNSTABLE AIR MASS
BECOMING UNCAPPED S OF FRONTAL BOUNDARY...THUS EXPECT RAPID SEVERE
THUNDERSTORM DEVELOPMENT NEXT COUPLE HOURS. IN ADDITION TO DAMAGING
WINDS/LARGE HAIL...TORNADOES WILL BE POSSIBLE WITH ANY SUPERCELL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
600. MEAN STORM MOTION VECTOR 23035.
...HALES
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