

451 

WWUS20 KWNS 022225

SEL5

SPC WW 022225

MNZ000-030400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 225

NWS STORM PREDICTION CENTER NORMAN OK

530 PM CDT WED MAY 2 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN MINNESOTA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 530 PM UNTIL

1100 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 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH OF

WORTHINGTON MINNESOTA TO 15 MILES NORTH NORTHEAST OF ROCHESTER

MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 STORMS SHOULD CONTINUE TO DEVELOP ALONG THE N

SIDE OF A REMNANT COLD POOL THAT HAS BEEN MODIFYING THROUGH THE

AFTERNOON.  MODERATE INSTABILITY AND EFFECTIVE BULK SHEAR NEAR 50 KT

WILL SUPPORT A RISK FOR SUPERCELLS WITH LARGE HAIL AND ISOLATED

DAMAGING WINDS FOR THE NEXT FEW HOURS.



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 27025.





...THOMPSON

