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WWUS20 KWNS 281911

SEL2

SPC WW 281911

MNZ000-WIZ000-LSZ000-290300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 392

NWS STORM PREDICTION CENTER NORMAN OK

215 PM CDT SAT MAY 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN MINNESOTA

       NORTHERN WISCONSIN

       LAKE SUPERIOR



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

1000 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 85

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTH

SOUTHWEST OF SAINT CLOUD MINNESOTA TO 20 MILES EAST SOUTHEAST OF

KENNEDY WISCONSIN.  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 391...



DISCUSSION...THUNDERSTORMS ARE INCREASING OVER SOUTHERN MN...AND

OTHER STORMS ARE LIKELY TO FORM IN THE NEXT FEW HOURS ACROSS CENTRAL

MN.  THIS ACTIVITY WILL SPREAD EASTWARD ACROSS THE WATCH AREA THIS

AFTERNOON AND EVENING.  STRONG DAYTIME HEATING AND COLD TEMPERATURES

ALOFT ARE OFFSETTING MARGINAL LOW LEVEL MOISTURE...PROVIDING STEEP

LAPSE RATES AND SUFFICIENT CAPE FOR ORGANIZED STORMS.  LARGE HAIL

AND DAMAGING WINDS WILL BE POSSIBLE IN THE STRONGER CORES.



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 450. MEAN STORM

MOTION VECTOR 25035.





...HART

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