April 18, 2004

Tornado Watch Issued

The National Weather Service has issued a tornado watch for portions of Central and Eastern Minnesota, Northern Wisconsin, and Lake Superior.

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 82
NWS STORM PREDICTION CENTER NORMAN OK
140 PM CDT SUN APR 18 2004

THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF

CENTRAL AND EASTERN MINNESOTA
NORTHERN WISCONSIN
LAKE SUPERIOR

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 140 PM UNTIL 800 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER... THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 65 MILES SOUTHWEST OF ALEXANDRIA MINNESOTA TO
90 MILES EAST OF DULUTH MINNESOTA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FORTORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 81...

DISCUSSION...RAPID SEVERE THUNDERSTORM DEVELOPMENT EXPECTED TO OCCUR THIS AFTERNOON ACROSS CENTRAL MN...SPREADING INTO NORTHERN WI THIS EVENING. DEEP SURFACE LOW...VERY STRONG LOW/MID LEVEL WIND FIELDS...AND MODERATE INSTABILITY WILL ENHANCE THE THREAT OFSUPERCELL STORMS CAPABLE OF VERY LARGE HAIL...DAMAGING WINDS...AND TORNADOES. POTENTIAL WILL EXIST FOR STRONG TORNADOES IMMEDIATELY ALONG SURFACE WARM FRONT FROM CENTRAL MN INTO NORTHERN WI.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25040.

Posted by colle006 at April 18, 2004 4:32 PM