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nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 pm edt wed sep 19 2018

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz441-200900-
port austin to harbor beach mi-
943 pm edt wed sep 19 2018

...gale watch in effect from friday afternoon through late friday
night...

.rest of tonight...east winds 5 to 10 knots in the late evening
and early morning becoming light and variable. partly cloudy...
then a slight chance of showers and thunderstorms after midnight.
mostly cloudy with a chance of showers and thunderstorms early in
the morning. waves around 2 feet or less. 
.thursday...south winds 5 to 10 knots becoming southeast 15 to
20 knots in the late morning and afternoon. light showers and a
chance of thunderstorms. waves 1 to 3 feet building to 3 to
5 feet in the afternoon. waves occasionally around 7 feet. 
.thursday night...south winds 15 to 20 knots becoming southwest
20 to 25 knots early in the morning. mostly cloudy with light
showers likely and a chance of thunderstorms early in the
evening...then partly cloudy with a chance of light showers in
the late evening and overnight. waves 3 to 5 feet. waves
occasionally around 6 feet. 
.friday...southwest winds 20 to 25 knots becoming west to 30 knots
with gusts to 35 knot gales in the late morning and afternoon. partly
cloudy with a chance of light showers. waves 4 to 6 feet. waves
occasionally around 8 feet. a gale warning may be needed.

gales will be possible beyond the forecast period. please refer to
the open lakes forecast for more information.

see lake huron open lake forecast for days 3 through 5.

$$

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