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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 422

NWS STORM PREDICTION CENTER NORMAN OK

125 AM CDT FRI JUN 3 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST MINNESOTA

       SOUTH CENTRAL AND EASTERN NORTH DAKOTA



EFFECTIVE THIS FRIDAY MORNING FROM 125 AM UNTIL 900 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 60

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST

NORTHWEST OF ROSEAU MINNESOTA TO 75 MILES SOUTH SOUTHWEST OF

JAMESTOWN NORTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 421...



DISCUSSION...SMALL BOW MCS NOW SW OF JMS EXPECTED TO CONTINUE

GENERALLY NEWD...WITH STRONGEST STORMS EXPECTED TO REMAIN ALONG AND

JUST E OF SLOWLY MOVING FRONT ATTM EXTENDING NNE TO NEAR DVL.

STRENGTH OF CLOUD LAYER SHEAR AND STRONG/PERSISTENT MOISTURE INFLOW

/PW AOA 1.25 IN/ PROVIDED BY 60 KT SLY LLJ SUGGEST THAT SYSTEM MAY

CONTINUE TO POSE A RISK FOR DMGG WIND AND POSSIBLY SVR 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 22045.





...CORFIDI

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