215
FZUS63 KMKX 271917
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
217 PM CDT FRI MAR 27 2026
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
LIGHTER WINDS EXPECTED THIS EVENING AS THE HIGH PRESSURE AROUND
30.8 INCHES SLOWLY BUILDS INTO THE UPPER MIDWEST FROM THE PLAINS
OVERNIGHT INTO SATURDAY. WINDS WILL GRADUALLY BACK TO SOUTHERLY
INTO SATURDAY AFTERNOON, AS HIGH PRESSURE SKIRTS SOUTHEAST OF
LAKE MICHIGAN WHILE LOW PRESSURE AROUND 29.7 INCHES DEVELOPS IN
THE LEE OF THE COLORADO ROCKIES. WINDS MAY SHIFT TO THE NORTH AND
NORTHEAST ON MONDAY AS A WARM FRONT SETS UP TO THE SOUTH OF THE
REGION, BUT EXPECTING TO INCREASE AND TURN MORE SOUTHERLY FOR
TUESDAY. THUNDERSTORM CHANCES INCREASE FOR TUESDAY AS WELL.
LMZ261-362-364-366-563-565-567-868-280330-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
217 PM CDT FRI MAR 27 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. SCATTERED SNOW SHOWERS THIS EVENING. WAVES 3 TO 5 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT, THEN SUBSIDING TO
4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT
EARLY IN THE AFTERNOON, THEN INCREASING TO 30 KT LATE. WAVES 3 TO
5 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SATURDAY NIGHT
SOUTH WINDS TO 30 KT BECOMING SOUTHWEST. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KT BECOMING SOUTH 10 TO 20 KT.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 15 KT BECOMING WEST. WAVES 3 TO
5 FT.
MONDAY
NORTHEAST WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.
MONDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING SOUTHEAST. CHANCE
OF RAIN AND THUNDERSTORMS. WAVES 3 TO 5 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
TUESDAY
SOUTHEAST WINDS 15 TO 25 KT BACKING TO NORTH. CHANCE
OF RAIN AND THUNDERSTORMS. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT.
WEDNESDAY
NORTH WINDS TO 30 KT. WAVES 8 TO 11 FT OCCASIONALLY
TO 14 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-280330-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 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 WHITEHALL TO PENTWATER MI 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-
217 PM CDT FRI MAR 27 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. ISOLATED SNOW SHOWERS THIS EVENING. WAVES 3 TO 5 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
SATURDAY
NORTHWEST WINDS 10 TO 15 KT BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST 10 TO 20 KT EARLY IN THE
AFTERNOON BECOMING SOUTH 15 TO 25 KT LATE. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KT BECOMING SOUTH 10 TO 20 KT.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 3 TO 5 FT.
MONDAY
SOUTH WINDS 10 TO 15 KT BACKING TO NORTHEAST. WAVES
2 TO 4 FT.
MONDAY NIGHT
SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT.
CHANCE OF RAIN AND THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
TUESDAY
SOUTHWEST WINDS TO 30 KT. RAIN LIKELY WITH A CHANCE OF
THUNDERSTORMS. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
WEDNESDAY
NORTH WINDS TO 30 KT. WAVES 10 TO 14 FT OCCASIONALLY
TO 18 FT.
LMZ761-280330-
MAFOR 2722/
MICHIGAN NORTH 11730 19737 13730 12620 12530. WAVES 1 TO 3 FEET
BUILDING TO 4 TO 7 FEET, THEN SUBSIDING TO 3 TO 6 FEET TONIGHT.
WAVES 2 TO 4 FEET BUILDING TO 3 TO 6 FEET SATURDAY.
MICHIGAN SOUTH 11720 19727 11730 12830 11710 11610 11520 11430.
WAVES 2 TO 4 FEET BUILDING TO 5 TO 8 FEET TONIGHT. WAVES 3 TO 6
FEET SUBSIDING TO 3 TO 5 FEET SATURDAY.
WAGNER
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
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