

000 

WWUS20 KWNS 102051

SEL8

SPC WW 102051

NDZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 678

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT THU JUL 10 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN AND CENTRAL NORTH DAKOTA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 65 MILES SOUTHEAST OF BISMARCK

NORTH DAKOTA TO 50 MILES NORTH NORTHWEST OF MINOT NORTH DAKOTA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 676...WW 677...



DISCUSSION...THUNDERSTORMS ARE EXPECTED TO DEVELOP AND INTENSIFY

ACROSS WRN INTO CENTRAL ND THIS EVENING AS AIR MASS BECOMES

MODERATELY UNSTABLE AND WEAKLY CAPPED.  SHEAR WILL BE QUITE STRONG

AND SUPPORT SUPERCELLS AND POSSIBLE TORNADOES AS STORMS MATURE.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 26025.





...EVANS

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