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ON- Simcoe & Huron

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whus73 kdtx 170757

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

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

.calm winds will back to moderate southwesterly flow ahead of an 
approaching front today. the passage of the front tonight will 
result in moderate to fresh northeast flow forcing cooler air to 
spread across area waters. with winds approaching 25 knots and 
significant wave heights forecasted to be at/greater than 4 
ft...issued small craft advisories for all nearshore areas of lake 
huron including saginaw bay. 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-
357 am edt wed sep 17 2014

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

the national weather service in detroit/pontiac has issued a
small craft advisory...which is 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 22 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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