Saturday, July 19, 2008

Tornado Watch 703

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 703
NWS STORM PREDICTION CENTER NORMAN OK
230 PM CDT SAT JUL 19 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHWEST IOWA
PARTS OF SOUTHERN AND EASTERN MINNESOTA
NORTHEAST NEBRASKA
PARTS OF SOUTHEAST SOUTH DAKOTA
PARTS OF NORTHWEST WISCONSIN
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST NORTHWEST OF
NORFOLK NEBRASKA TO 75 MILES EAST NORTHEAST OF MINNEAPOLIS
MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES 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.
DISCUSSION...THUNDERSTORMS INTENSIFYING ACROSS SRN MN INTO SERN SD
WHERE AIR MASS HAS BECOME MDTLY UNSTABLE. FAVORABLE SHEAR PROFILES
FOR SUPERCELLS ALONG AND AHEAD OF BOUNDARY FROM N OF MSP TO W OF
FSD. TORNADOS ALONG WITH LARGE HAIL WILL BE POSSIBLE WITH ANY
SUPERCELL. STORMS SHOULD CONTINUE TO INCREASE IN NUMBER AND DEVELOP
E/SEWD THRU THE AFTERNOON.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 27030.
..HALES
. IOWA COUNTIES INCLUDED ARE
BUENA VISTA CHEROKEE CLAY
DICKINSON EMMET IDA
KOSSUTH LYON MONONA
O'BRIEN OSCEOLA PALO ALTO
PLYMOUTH SIOUX WINNEBAGO
WOODBURY
MINNESOTA COUNTIES INCLUDED ARE
ANOKA BLUE EARTH BROWN
CARVER CHISAGO COTTONWOOD
DAKOTA DODGE FARIBAULT
FREEBORN GOODHUE HENNEPIN
ISANTI JACKSON LE SUEUR
MARTIN MCLEOD MOWER
NICOLLET NOBLES OLMSTED
RAMSEY RICE ROCK
SCOTT SHERBURNE SIBLEY
STEELE WABASHA WASECA
WASHINGTON WATONWAN WRIGHT
NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE BOONE BURT
CEDAR CUMING DAKOTA
DIXON KNOX MADISON
PIERCE STANTON THURSTON
WAYNE
SOUTH DAKOTA COUNTIES INCLUDED ARE
BON HOMME CLAY HUTCHINSON
LINCOLN MCCOOK MINNEHAHA
TURNER UNION YANKTON

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