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whus73 kdtx 171952

urgent - marine weather message
national weather service detroit/pontiac mi
352 pm edt wed sep 17 2014

...increased northerly flow to develop over lake huron tonight...

.winds become more southwesterly this afternoon ahead of an 
approaching cold front currently draped across the northern great 
lakes. the front will drop through the eastern lakes tonight and 
into thursday morning veering flow to northeasterly while increasing 
the winds with gusts approaching 25 knots tonight. the northeast 
wind direction will bring increased wave heights into the nearshore 
zones around the thumb. small craft advisories have been issued for 
all nearshore areas of lake huron including saginaw bay for both 
winds and waves. the advisories will be in effect from this evening 
into the late morning hours on thursday. winds will ease thursday 
night into friday before southerly winds begin to ramp up ahead of 
the next system late friday.

outer saginaw bay sw of alabaster to port austin mi to inner
saginaw bay-inner saginaw bay sw of point au gres to bay port mi-
port austin to harbor beach mi-harbor beach to port sanilac mi-
port sanilac to port huron mi-
352 pm edt wed sep 17 2014

...small craft advisory remains in effect from 10 pm this evening
to 10 am edt thursday...

* wind and waves: during the small craft advisory...expect 
  sustained winds up to 21 knots from the north with gusts up 
  to 26 knots. the largest expected significant waves will be 5 
  feet with a potential maximum wave height of 7 feet. 

* timing: the maximum winds are expected around 12 am edt 
  thursday with the largest waves expected around 3 am edt 

refer to the latest marine forecasts for greater detail.

precautionary/preparedness actions...

a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.



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