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Marine Forecast
Expires:201802201630;;255419
FZUS63 KLOT 200848
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
248 AM CST Tue Feb 20 2018

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan.

Waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.SYNOPSIS...An elongated trough averaging 29.9 inches stretches
from Oklahoma across the middle of Lake Michigan then to New 
England. Within the trough, a low of 29.8 inches is in place over 
southeastern Wisconsin and will lift across Lake Michigan through 
the day today then lift into western Quebec by late tonight. A 
trailing cold front will push across Lake Michigan clearing the 
lake by late tonight. A 30.7 inch high will build across the 
northern Great Plains today and tonight and eventually shift to 
the western Great Lakes Wednesday night. The high will continue 
east to New England Friday. A weak low of 30.1 inches will lift 
from the lower Mississippi Valley Thursday night to the eastern 
Great Lakes Friday. Another high of 30.3 inches will build across 
the Upper Midwest Friday and move to Quebec Saturday. Low pressure
of 29.7 inches will develop over the Central Plains Saturday and 
lift to Lake Michigan early Sunday deepening to 29.5 inches.

LMZ080-671-673-675-777-779-872-874-876-878-201630-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
248 AM CST Tue Feb 20 2018

PORT WASHINGTON WI TO WHITEHALL MI SOUTH...

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

Today - Southwest winds 15 to 25 kt. Areas of dense fog. Rain 
showers and slight chance of thunderstorms. Waves 3 to 5 ft.

Tonight - West winds 10 to 20 kt becoming northwest 15 to 25 kt late in the evening...then increasing to 30 kt after midnight. Areas of dense fog in the evening. Rain with a chance of light freezing rain in the evening...then rain likely with possible freezing rain, sleet and snow overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...Northwest winds 15 to 25 kt becoming north 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. .WEDNESDAY NIGHT...North winds 10 to 15 kt becoming northeast 10 to 20 kt. Waves 2 to 4 ft. .THURSDAY...East winds 10 to 20 kt. Waves 2 to 4 ft. .THURSDAY NIGHT...East winds 15 to 25 kt becoming southeast. Chance of rain and light freezing rain. Waves 2 to 4 ft. .FRIDAY...South winds 10 to 15 kt becoming west. Rain likely. Waves 1 to 3 ft subsiding to 1 to 2 ft. .SATURDAY...Northeast winds 10 to 20 kt becoming east. Chance of rain and snow. Waves 1 to 3 ft building to 2 to 4 ft. $$


US Forecasts are Public Domain and derived from the
National Weather Service - (IWIN) and the National Oceanic Atmospheric Administration (NOAA)
Canadian forecasts are obtained from and are copyright of Environment Canada.

All weather information provided by MarineWaypoints.com should be used with caution.
We cannot guarantee that the data provided here is 100% accurate or up to date!


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