

000 

WWUS20 KWNS 310304

SEL7

SPC WW 310304

NDZ000-311000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 777

NWS STORM PREDICTION CENTER NORMAN OK

1005 PM CDT WED JUL 30 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       MUCH OF NORTH DAKOTA



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1005 PM

UNTIL 500 AM CDT.



HAIL TO 1 INCH 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 55 MILES NORTH

NORTHEAST OF MINOT NORTH DAKOTA TO 70 MILES SOUTHEAST OF BISMARCK

NORTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 775...WW 776...



DISCUSSION...SCTD AREAS OF STRONG TO SVR TSTMS/POSSIBLE SUPERCELLS

EXPECTED TO PERSIST THROUGH THURSDAY MORNING OVER WW AREA AS DPVA

AND WAA INCREASE ON SERN FRINGE OF JET STREAK CROSSING SRN SK/NRN

MT.  STORMS SHOULD BECOME INCREASINGLY ELEVATED WITH EWD

EXTENT...BUT MAY CONTINUE TO POSE A THREAT FOR HIGH WIND AND

MARGINALLY SVR HAIL.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION

VECTOR 27035.





...CORFIDI

