

563 

WWUS20 KWNS 180540

SEL4

SPC WW 180540

MNZ000-WIZ000-181200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 434

NWS STORM PREDICTION CENTER NORMAN OK

1240 AM CDT SAT JUL 18 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEASTERN MINNESOTA

  WESTERN AND CENTRAL WISCONSIN



* EFFECTIVE THIS SATURDAY MORNING FROM 1240 AM UNTIL 700 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...BOWING COMPLEX OF THUNDERSTORMS OVER SOUTHERN

MINNESOTA...WITH A HISTORY OF DAMAGING AND SEVERE GUSTS...SHOULD

MAINTAIN THAT THREAT AT LEAST INTO PARTS OF WESTERN AND CENTRAL

WISCONSIN.  ANOTHER EMBEDDED TORNADO CANNOT BE RULED OUT.  SEE SPC

MESOSCALE DISCUSSION 1458 FOR METEOROLOGICAL DETAILS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75

STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH

SOUTHEAST OF LA CROSSE WISCONSIN TO 40 MILES NORTH NORTHEAST OF

EAU CLAIRE WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 432...WW 433...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION

VECTOR 28045.





...EDWARDS

