

000 

WWUS20 KWNS 191928

SEL3

SPC WW 191928

IAZ000-MNZ000-NEZ000-SDZ000-WIZ000-200300-



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.



OTHER WATCH INFORMATION...CONTINUE...WW 702...



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

