833
FZUS63 KMKX 202114
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
314 PM CST MON JAN 20 2025
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
ARCTIC HIGH PRESSURE AROUND 30.9 INCHES WILL SHIFT INTO THE
CENTRAL PLAINS TONIGHT AND THE MIDDLE MISSISSIPPI RIVER VALLEY
TUESDAY. IT WILL SHIFT FURTHER EAST INTO THE MIDDLE OF THE WEEK.
THE PROGRESSION OF THE HIGH WILL HELP TO MAINTAIN BREEZY WEST
NORTHWEST WINDS ACROSS LAKE MICHIGAN THROUGH THE FIRST HALF OF
THIS WEEK.
THE BREEZY WEST NORTHWEST WINDS WILL COMBINE WITH ELEVATED WAVE
HEIGHTS AND FRIGID AIR TEMPERATURES TO SUPPORT HEAVY FREEZING
SPRAY THROUGH TUESDAY AFTERNOON.
HEAVY FREEZING SPRAY WARNINGS REMAIN IN EFFECT FOR THE SOUTHERN
OPEN WATERS OF LAKE MICHIGAN THROUGH 6 PM CST TUESDAY. A HEAVY
FREEZING SPRAY WARNING IS ALSO IN EFFECT FOR THE NORTHERN THIRD OF
THE OPEN WATERS UNTIL 6 AM CST TUESDAY MORNING. IT IS POSSIBLE
THAT AREAS OF HEAVY FREEZING SPRAY COULD CONTINUE LONGER OVER
PORTIONS OF THE WARNED AREA, WITH TRENDS BEING MONITORED OVER
COMING FORECASTS FOR ANY POTENTIAL EXTENSIONS.
LOW PRESSURE AROUND 29.8 INCHES WILL MOVE SOUTHEAST INTO THE
WESTERN GREAT LAKES REGION TUESDAY NIGHT INTO WEDNESDAY, PROMOTING
A SOUTHWEST WIND SHIFT OVER LAKE MICHIGAN. SOUTHWEST WINDS WILL
BECOME BREEZY ON WEDNESDAY. THIS WILL SUPPORT CONTINUED FREEZING
SPRAY POTENTIAL INTO WEDNESDAY, WITH ANY FREEZING SPRAY EXPECTED
TO BE LIGHTER RELATIVE TO EARLIER IN THE WEEK.
LMZ261-362-364-366-563-565-210415-
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-
314 PM CST MON JAN 20 2025
TWO RIVERS WI TO MANISTEE MI NORTH...
..HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE TONIGHT
TONIGHT
WEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. HEAVY
FREEZING SPRAY. SCATTERED SNOW SHOWERS. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
TUESDAY
WEST WINDS 10 TO 20 KT. SCATTERED SNOW SHOWERS. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
TUESDAY NIGHT
WEST WINDS 15 TO 25 KT BECOMING SOUTHWEST TO
30 KT. FREEZING SPRAY OVERNIGHT. SCATTERED SNOW SHOWERS
OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 6 TO
9 FT OCCASIONALLY TO 12 FT.
WEDNESDAY
SOUTHWEST GALES TO 35 KT DIMINISHING TO 30 KT.
FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES 8 TO 12 FT
OCCASIONALLY TO 16 FT.
WEDNESDAY NIGHT
WEST WINDS 15 TO 25 KT BECOMING NORTHWEST
10 TO 20 KT. CHANCE OF SNOW SHOWERS IN THE EVENING. WAVES 6 TO
9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
THURSDAY
NORTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 1 TO 3 FT.
FRIDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT.
WAVES 2 TO 4 FT.
SATURDAY
SOUTHWEST WINDS TO 30 KT BECOMING WEST. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-210415-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 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 PENTWATER TO MANISTEE MI 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-
314 PM CST MON JAN 20 2025
TWO RIVERS WI TO MANISTEE MI SOUTH...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH TUESDAY
AFTERNOON...
TONIGHT
WEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. HEAVY
FREEZING SPRAY. SCATTERED SNOW SHOWERS. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
TUESDAY
WEST WINDS 10 TO 20 KT. HEAVY FREEZING SPRAY IN THE
MORNING. SCATTERED SNOW SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
TUESDAY NIGHT
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO
25 KT LATE IN THE EVENING, THEN INCREASING TO 30 KT AFTER
MIDNIGHT BECOMING SOUTHWEST TO 30 KT LATE. SCATTERED SNOW
SHOWERS. FREEZING SPRAY OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 12 FT.
WEDNESDAY
SOUTHWEST WINDS TO 30 KT. FREEZING SPRAY. CHANCE OF
SNOW SHOWERS IN THE MORNING, THEN SNOW SHOWERS LIKELY IN THE
AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS TO 30 KT BECOMING WEST 15 TO
25 KT. CHANCE OF SNOW SHOWERS IN THE EVENING. WAVES 8 TO 11 FT
OCCASIONALLY TO 14 FT SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO
10 FT.
THURSDAY
NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SNOW SHOWERS
IN THE AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 3 TO 5 FT.
FRIDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT BUILDING TO 3 TO 5 FT.
SATURDAY
SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT.
LMZ761-210415-
MAFOR 2023/
MICHIGAN NORTH 11630 19637 12642 19647 11632 19637 11630 19637
13620 19627. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET, THEN
SUBSIDING TO 3 TO 6 FEET TONIGHT. WAVES 3 TO 5 FEET TUESDAY.
MICHIGAN SOUTH 12642 19647 12632 19637 13622 19627 11620 19627.
WAVES 5 TO 8 FEET TONIGHT. WAVES 3 TO 6 FEET TUESDAY.
WOOD
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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