WATCHES: Severe Thunderstorm Watch Number 613

WWUS20 KWNS 262344
SEL3
SPC WW 262344
MNZ000-NDZ000-270700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 613
NWS STORM PREDICTION CENTER NORMAN OK
645 PM CDT THU JUN 26 2008

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

WESTERN MINNESOTA
CENTRAL AND EASTERN NORTH DAKOTA

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 645 PM
UNTIL 200 AM CDT.

HAIL TO 1.5 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 110
STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH
NORTHWEST OF GRAND FORKS NORTH DAKOTA TO 70 MILES SOUTH SOUTHWEST
OF JAMESTOWN NORTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 610. WATCH NUMBER 610 WILL NOT
BE IN EFFECT AFTER 645 PM CDT. CONTINUE...WW 611...WW 612...

DISCUSSION...SCTD TSTMS/POSSIBLE SUPERCELLS EXPECTED TO PERSIST IN
AREA OF WAA/ASCENT DOWNSTREAM FROM IMPULSE IN MODERATE CYCLONIC WLY
FLOW. ACTIVITY MAY ORGANIZE INTO A FORWARD /EWD/-PROPAGATING MCS
LATER THIS EVENING...WITH A CONTINUED THREAT FOR SVR WIND/HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27035.

...CORFIDI

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