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WWUS20 KWNS 101608

SEL6

SPC WW 101608

NDZ000-SDZ000-110000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 616

NWS STORM PREDICTION CENTER NORMAN OK

1110 AM CDT SUN JUL 10 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN NORTH DAKOTA

       NORTH CENTRAL SOUTH DAKOTA



EFFECTIVE THIS SUNDAY MORNING AND EVENING FROM 1110 AM UNTIL 700

PM CDT.



HAIL TO 2 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 80

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTH OF

DICKINSON NORTH DAKOTA TO 15 MILES SOUTH OF GRAND FORKS NORTH

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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.



DISCUSSION...SCATTERED ELEVATED THUNDERSTORMS ARE DEVELOPING OVER

WEST CENTRAL ND BENEATH RIGHT-ENTRANCE REGION TO UPPER JET.  THIS

ACTIVITY WILL LIKELY PERSIST THROUGH THE DAY AND SPREAD EASTWARD

ACROSS THE WATCH AREA.  SUPERCELLS CAPABLE OF LARGE HAIL AND

DAMAGING WINDS ARE POSSIBLE.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 26030.





...HART

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