

990 

WWUS20 KWNS 211344

SEL5

SPC WW 211344

MIZ000-WIZ000-LHZ000-LMZ000-LSZ000-212100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 405

NWS STORM PREDICTION CENTER NORMAN OK

945 AM EDT THU JUL 21 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN UPPER AND MUCH OF LOWER MICHIGAN

  SOUTHEAST WISCONSIN

  LAKE HURON

  LAKE MICHIGAN

  LAKE SUPERIOR



* EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 945 AM UNTIL

  500 PM EDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



SUMMARY...A LONG-LIVED LINE OF INTENSE THUNDERSTORMS WILL MOVE

ACROSS THE WATCH AREA TODAY...POSING A THREAT OF LOCALLY DAMAGING

WIND GUSTS AND PERHAPS SOME HAIL.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 135

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF

ALPENA MICHIGAN TO 10 MILES SOUTH OF MUSKEGON MICHIGAN.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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 404...



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 29035.





...HART

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