WATCHES: Severe Thunderstorm Watch Number 734

WWUS20 KWNS 240646
SEL4
SPC WW 240646
NDZ000-241200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 734
NWS STORM PREDICTION CENTER NORMAN OK
145 AM CDT MON AUG 24 2009

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

NORTH CENTRAL NORTH DAKOTA

EFFECTIVE THIS MONDAY MORNING FROM 145 AM UNTIL 700 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 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 75 MILES WEST
NORTHWEST OF GARRISON NORTH DAKOTA TO 80 MILES EAST OF MINOT
NORTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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...CONTINUE...WW 733...

DISCUSSION...A BOW ECHO OVER NORTHWEST ND WILL CONTINUE TO TRACK
EAST-NORTHEASTWARD FOR SEVERAL MORE HOURS ACROSS NORTH CENTRAL ND.
MEANWHILE...POTENTIAL EXISTS FOR ISOLATED STORMS TO FORM ALONG THE
TRAILING FLANK OF THE BOW. DAMAGING WINDS AND HAIL WILL BE THE MAIN
THREATS WITH THESE STORMS THROUGH DAYBREAK.

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 25030.

...HART

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