

468 

WWUS20 KWNS 220626

SEL9

SPC WW 220626

MIZ000-WIZ000-LSZ000-221200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 429

NWS STORM PREDICTION CENTER NORMAN OK

120 AM CDT TUE JUL 22 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN UPPER MICHIGAN

  NORTHERN WISCONSIN

  LAKE SUPERIOR



* EFFECTIVE THIS TUESDAY MORNING FROM 120 AM UNTIL 700 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES EAST

NORTHEAST OF GRAND MARAIS MINNESOTA TO 65 MILES WEST OF

RHINELANDER WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 428...



DISCUSSION...NE MN SQLN EXPECTED TO CONTINUE EWD OR PERHAPS ENE AT

ABOUT 45 KTS. SYSTEM WILL BE SUPPORTED...IN PART...BY

INTENSIFYING...CONVECTIVELY-ENHANCED SHORTWAVE IMPULSE/MCV NOW

ENTERING WRN MN. ALTHOUGH SFC-BASED BUOYANCY DECREASES WITH EWD

EXTENT...SUFFICIENT INSTABILITY SHOULD REMAIN PRESENT TO MAINTAIN

EXISTING WELL-ORGANIZED CONVECTIVE BAND GIVEN STRENGTHENING/MOIST

SWLY LLJ STREAM AHEAD OF LINE...AND EML PLUME SPREADING ENEWD FROM

MN.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION

VECTOR 27045.





...CORFIDI

