Marine Weather for LM 742

Active Advisory: (US Severe Weather)
Forecast as of 3:22 PM CST on December 22, 2014
Small Craft Advisory in effect through Tuesday morning
Wilmette Harbor To Northerly Island-
Northerly Island To Calumet Harbor-
Tonight
Southeast winds 15 to 20 kt increasing to 20 to 25 kt this evening then easing to 15 to 20 kt overnight. Periods of rain. Waves 3 to 5 ft occasionally to 7 ft building to 4 to 6 ft occasionally to 8 ft.
Tuesday
South winds 10 to 20 kt becoming southwest. Chance of rain in the morning. Waves 3 to 5 ft occasionally to 7 ft subsiding to 1 to 3 ft in the afternoon.
Tuesday Night
Southwest winds 10 to 15 kt becoming north 5 to 10 kt after midnight. Chance of rain after midnight. Waves around 1 ft.
Wednesday
North winds 10 to 15 kt increasing to 20 to 25 kt in the afternoon. Chance of rain through the day. Snow likely in the afternoon. Waves building to 4 to 6 ft occasionally to 8 ft in the afternoon. A Small Craft Advisory will likely be needed.
Small Craft Advisory
Statement as of 4:18 PM CST on December 22, 2014

...Small Craft Advisory remains in effect until 9 am CST Tuesday...

* winds...to 25 kt. A few 30 kt gusts possible this evening.

* Significant waves...to 6 to 7 ft.

* Occasional waves...to 8 to 9 ft.

Precautionary/preparedness actions...

A Small Craft Advisory means that winds of 22 to 33 knots and/or waves greater than 4 ft will produce hazardous conditions for small craft. Inexperienced mariners...especially those operating smaller vessels should avoid navigating in these conditions.

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Open Sea Buoy Information

Place ID Sea Temp Wave Height
S MICHIGAN 43NM East Southeast of Milwaukee, WI 45007 36 °F
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Grand Haven Michigan 45011
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