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WWUS20 KWNS 011723
SEL5
SPC WW 011723
MIZ000-LHZ000-LMZ000-LSZ000-012200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 485
NWS STORM PREDICTION CENTER NORMAN OK
125 PM EDT MON SEP 1 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  NORTHERN LOWER AND EASTERN UPPER MICHIGAN
  LAKE HURON
  LAKE MICHIGAN
  LAKE SUPERIOR

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
  600 PM EDT.

* PRIMARY THREATS INCLUDE...
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTHWEST OF
OSCODA MICHIGAN TO 60 MILES NORTH OF PELLSTON 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.

&&

DISCUSSION...A LINE OF STRONG THUNDERSTORMS OVER WESTERN LOWER MI
WILL TRACK EASTWARD ACROSS THE WATCH AREA THIS AFTERNOON.
SUFFICIENT VERTICAL SHEAR AND MODERATE CAPE VALUES MAY BE SUFFICIENT
FOR A FEW ORGANIZED STORMS CAPABLE OF DAMAGING WINDS OR A BRIEF
TORNADO.

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 24035.


...HART




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