Activities

Marine

Marine Weather for LM 740

Active Advisory: (US Severe Weather)
Forecast as of 9:11 am CDT on June 28, 2017
Small Craft Advisory in effect through Thursday afternoon
Winthrop Harbor To Wilmette Harbor-
Wilmette Harbor To Northerly Island-
Northerly Island To Calumet Harbor-
Today
South winds 20 to 25 kt increasing to 30 kt in the afternoon. A few gale force gusts to 35 kt this afternoon. Scattered showers and thunderstorms through the day. Waves 1 to 3 ft building to 3 to 6 ft occasionally to 8 ft in the afternoon.
Tonight
South winds to 30 kt becoming southwest and diminishing to 20 to 25 kt. Chance of showers and thunderstorms. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft overnight.
Thursday
Southwest winds 20 to 25 kt diminishing to 10 to 20 kt in the early evening. Chance of showers and thunderstorms. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.
Thursday Night
Southwest winds 10 to 15 kt becoming south after midnight. Showers and thunderstorms likely. Waves 1 ft or less.

Watches & Warnings

Small Craft Advisory
Issued: 9:11 AM CDT Jun. 28, 2017 – National Weather Service 

... Small Craft Advisory remains in effect until 1 PM CDT
Thursday... 

* winds... south to 30 kt. A few gale force gusts to 35 kt this
  afternoon.

* Significant waves... to 4 to 6 ft.

* Occasional waves... to 8 ft along the Illinois shore.

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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Marine Weather

Marine Weather Links

Waters within five nautical miles of shore

Waters within five nautical miles of shore on lakes Huron... Michigan and Superior

Waters within five nautical miles of shore on Lake Michigan

Waters within five nautical miles of shore on Lake Michigan

Waters beyond five nautical miles of shore on Lake Michigan

Waters within five nautical miles of shore on Lake Michigan

Waters within five nautical miles of shore on Lake Michigan

Waters within five nautical miles of shore on Lake Michigan

Lake Huron forecast beyond five nautical miles from shore

Waters within five nautical miles of shore

Surf City NC to South Santee River SC out 20 nm

Waters within five nautical miles of shore on Lake Erie

Waters beyond five nautical miles of shore on Lake Erie

Waters within five nautical miles of shore

Waters beyond five nautical miles of shore on Lake Ontario

Marine & Boating Location Search

Enter a coastal zip code for marine weather.

Coastal Water Temperatures

Place Temperature
No Stations Reporting

Open Sea Buoy Information

Place ID Sea Temp Wave Height
SOUTH MICHIGAN 43NM East Southeast of Milwaukee, WI 45007 61 °F 3.94 ft
Grand Haven Michigan 45011
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Click the Station ID for daily observations and history.

C-MAN Station Information

Place ID Water Temp Wave Height
Sheboygan, WI SGNW3
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Not for navigation. Do not rely on this data for decisions that can result in harm or damage.