686
FZUS63 KMKX 060859
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
259 AM CST FRI FEB 6 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
LOW PRESSURE AROUND 29.4 INCHES OVER JAMES BAY WILL ENTER QUEBEC
BY THIS AFTERNOON, DRAGGING A COLD FRONT THROUGH LAKE MICHIGAN.
EXPECT LIGHT WEST WINDS VEERING NORTHWEST THIS MORNING, WITH GALES
UP TO 40 KT EXPECTED BEHIND THE COLD FRONT THIS AFTERNOON. A GALE
WARNING AND A HEAVY FREEZING SPRAY WARNING IS IN EFFECT ACROSS
THE NORTHERN TWO THIRDS OF THE LAKE FOR GALES AND FRIGID
TEMPERATURES BEHIND THE COLD FRONT. ONLY A GALE WARNING IS IN
EFFECT FOR THE SOUTHERN THIRD OF THE OPEN WATERS DUE TO WARMER
CONDITIONS. WINDS VEER NORTHERLY TONIGHT AND GRADUALLY WEAKEN
THROUGH SATURDAY AS HIGH PRESSURE BUILDS ACROSS THE REGION.
SOUTHERLY WINDS RETURN WITH MILDER TEMPS AS HIGH PRESSURE PUSHES
EAST FOR SUNDAY.
LMZ261-362-364-366-563-565-567-868-061615-
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-
259 AM CST FRI FEB 6 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
...GALE WARNING IN EFFECT FROM 10 AM CST THIS MORNING THROUGH
THIS EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 10 AM CST THIS
MORNING THROUGH LATE TONIGHT...
TODAY
NORTHWEST WINDS TO 30 KT BECOMING NORTH GALES TO 40 KT.
CHANCE OF SNOW THIS MORNING, THEN CHANCE OF SNOW AND LIGHT
FREEZING DRIZZLE THIS AFTERNOON. HEAVY FREEZING SPRAY THIS
AFTERNOON. WAVES 3 TO 5 FT BUILDING TO 12 TO 16 FT OCCASIONALLY
TO 21 FT.
TONIGHT
NORTH GALES TO 40 KT DIMINISHING TO 30 KT. HEAVY
FREEZING SPRAY. CHANCE OF SNOW, LIGHT FREEZING DRIZZLE AND SLIGHT
CHANCE OF LIGHT FREEZING RAIN IN THE EVENING, THEN CHANCE OF SNOW
OVERNIGHT. WAVES 12 TO 16 FT OCCASIONALLY TO 21 FT SUBSIDING TO
8 TO 11 FT OCCASIONALLY TO 14 FT.
SATURDAY
NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST 5 TO
10 KT. HEAVY FREEZING SPRAY IN THE MORNING. CHANCE OF SNOW IN THE
MORNING. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 2 TO
4 FT.
SATURDAY NIGHT
WEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. WAVES 1 TO 3 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
MONDAY
SOUTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 3 TO 5 FT.
TUESDAY
SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
LMZ669-671-673-675-870-872-874-876-061615-
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 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-
259 AM CST FRI FEB 6 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH TO WINTHROP HARBOR IL TO SOUTH
HAVEN MI...
...GALE WARNING IN EFFECT FROM 10 AM CST THIS MORNING THROUGH
THIS EVENING...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 10 AM CST THIS
MORNING THROUGH LATE TONIGHT...
TODAY
NORTHWEST WINDS TO 30 KT BECOMING NORTH GALES TO 40 KT.
CHANCE OF SNOW AND SLIGHT CHANCE OF DRIZZLE THIS MORNING, THEN
CHANCE OF SNOW AND LIGHT FREEZING DRIZZLE THIS AFTERNOON.
FREEZING SPRAY THIS AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT BUILDING TO 12 TO 16 FT OCCASIONALLY TO 21 FT.
TONIGHT
NORTH GALES TO 40 KT DIMINISHING TO 30 KT. HEAVY
FREEZING SPRAY. CHANCE OF LIGHT FREEZING DRIZZLE, SLIGHT CHANCE
OF LIGHT FREEZING RAIN AND SNOW IN THE EVENING, THEN SLIGHT
CHANCE OF LIGHT FREEZING RAIN AND SNOW OVERNIGHT. WAVES 12 TO
16 FT OCCASIONALLY TO 21 FT SUBSIDING TO 8 TO 12 FT OCCASIONALLY
TO 16 FT.
SATURDAY
NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST 5 TO
10 KT. FREEZING SPRAY IN THE MORNING. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT SUBSIDING TO 3 TO 5 FT.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH
10 TO 20 KT. WAVES 2 TO 4 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
MONDAY
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
TUESDAY
SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
LMZ080-777-779-878-061615-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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 ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
259 AM CST FRI FEB 6 2026
WINTHROP HARBOR IL TO SOUTH HAVEN MI SOUTH...
...GALE WARNING IN EFFECT FROM 10 AM CST THIS MORNING THROUGH
THIS EVENING...
TODAY
NORTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT LATE
THIS MORNING, THEN BECOMING NORTH GALES TO 35 KT EARLY THIS
AFTERNOON INCREASING TO GALES TO 40 KT LATE. SNOW AND SLIGHT
CHANCE OF DRIZZLE THIS MORNING, THEN CHANCE OF SNOW AND LIGHT
FREEZING DRIZZLE THIS AFTERNOON. WAVES 3 TO 5 FT BUILDING TO
12 TO 16 FT OCCASIONALLY TO 21 FT.
TONIGHT
NORTH GALES TO 40 KT DIMINISHING TO 30 KT. FREEZING
SPRAY. CHANCE OF LIGHT FREEZING DRIZZLE, SLIGHT CHANCE OF LIGHT
FREEZING RAIN AND SNOW IN THE EVENING, THEN SLIGHT CHANCE OF
LIGHT FREEZING RAIN AND SNOW OVERNIGHT. WAVES 12 TO 16 FT
OCCASIONALLY TO 21 FT SUBSIDING TO 8 TO 12 FT OCCASIONALLY TO
16 FT.
SATURDAY
NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO
15 KT EARLY IN THE AFTERNOON, THEN DIMINISHING TO 5 TO 10 KT
LATE. FREEZING SPRAY IN THE MORNING. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT SUBSIDING TO 3 TO 5 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 2 TO 4 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
MONDAY
SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 1 TO 3 FT.
TUESDAY
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
LMZ761-061615-
MAFOR 0611/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11730 12850 13852
12842. A CHANCE OF SNOW THIS MORNING, THEN A CHANCE OF SNOW AND
LIGHT FREEZING DRIZZLE THIS AFTERNOON. A CHANCE OF SNOW AND LIGHT
FREEZING DRIZZLE THIS EVENING, THEN A CHANCE OF SNOW OVERNIGHT.
WAVES 2 TO 4 FEET BUILDING TO 10 TO 14 FEET TODAY. WAVES 10 TO 14
FEET SUBSIDING TO 7 TO 10 FEET TONIGHT. WAVE HEIGHTS ARE FOR ICE
FREE AREAS.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...11737 11740 13850 11852
11842 11840. A CHANCE OF LIGHT FREEZING DRIZZLE THIS AFTERNOON.
WAVES 2 TO 4 FEET BUILDING TO 10 TO 15 FEET TODAY. WAVES 12 TO 16
FEET SUBSIDING TO 10 TO 14 FEET TONIGHT.
MH
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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