SEL3
SPC WW 172131
MNZ000-WIZ000-LSZ000-180500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 653
NWS STORM PREDICTION CENTER NORMAN OK
435 PM CDT SUN JUL 17 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST MINNESOTA
NORTHWEST WISCONSIN
LAKE SUPERIOR
EFFECTIVE THIS SUNDAY AFTERNOON FROM 435 PM UNTIL MIDNIGHT 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 110
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF ELY
MINNESOTA TO 60 MILES SOUTHEAST OF BRAINERD MINNESOTA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU3).
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 650...WW 652...
DISCUSSION...SCATTERED THUNDERSTORMS ARE MOVING ACROSS NORTHERN
MN...WHILE ISOLATED INTENSE SUPERCELLS TRACK ACROSS EASTERN ND.
BOTH AREAS OF CONVECTION WILL EVENTUALLY SPREAD ACROSS PORTIONS OF
THE WATCH AREA THIS EVENING. A VERY MOIST AND EXTREMELY UNSTABLE
AIR MASS IS IN PLACE ACROSS THIS REGION...SUPPORTIVE OF SUPERCELLS
AND BOWS PRODUCING DAMAGING WINDS AND HAIL.
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 28030.
...HART
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