000
FZUS63 KMKX 182005
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
305 PM CDT Thu Apr 18 2024

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...

Lake Michigan will be sandwiched between two areas of low
pressure. Expect lighter winds to continue through the evening as
the southern low pressure around 29.8 inches centered over MO
this afternoon lifts across central IL/IN. Meanwhile the northern
low across Ontario is progged to meander over into the Hudson Bay
region and deepen to around 29.5 inches through Friday. Expect a
stronger pressure gradient develop over the region for Friday with
high pressure building to around 30.4 inches across the Plains
resulting in 25-30 knot northwesterly winds for Friday. High
pressure is expected to gradually work its way south-southeast
through the weekend with lighter winds over Lake Michigan. Then
southerly winds return by the start of next week ahead of a
developing low over the Plains.


LMZ080-669-671-673-675-777-779-870-872-874-876-878-190330-
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-
305 PM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northwest winds 10 to 20 kt increasing to 15 to 25 kt.
Rain showers this evening, then chance of rain showers overnight.
Waves 2 to 4 ft.
.FRIDAY...Northwest winds 15 to 25 kt becoming west to 30 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...West winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...West winds to 30 kt diminishing to 15 to 25 kt. Waves
5 to 8 ft occasionally to 10 ft.
.SATURDAY NIGHT...West winds 10 to 15 kt increasing to 10 to
20 kt. Waves 3 to 5 ft.
.SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.SUNDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Waves
2 to 4 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 2 to 4 ft.
.TUESDAY...Southwest winds 15 to 25 kt veering to northwest to
30 kt. Rain showers likely. Waves 3 to 5 ft.

$$

LMZ261-362-364-366-563-565-567-868-190330-
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-
305 PM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds 10 to 20 kt becoming west 15 to 25 kt.
Chance of rain showers this evening, then slight chance of rain
showers overnight. Waves 2 to 4 ft.
.FRIDAY...West winds 15 to 25 kt increasing to 30 kt. Waves 4 to
6 ft occasionally to 8 ft.
.FRIDAY NIGHT...West winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...West winds 15 to 25 kt. Waves 4 to 6 ft occasionally
to 8 ft subsiding to 3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...West winds 15 to 25 kt backing to southeast 10 to
20 kt. Waves 2 to 4 ft.
.MONDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 2 to 4 ft.
.TUESDAY...East winds 15 to 25 kt becoming north to 30 kt. Rain
showers likely. Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ761-190330-
MAFOR 1822/
MICHIGAN NORTH 11510 12520 11620 12630 12640. A chance of rain
showers this evening. Waves 1 to 3 feet tonight. Waves 2 to 4
feet building to 3 to 5 feet Friday.

MICHIGAN SOUTH 11726 11826 11720 12730 11630 12640. Waves 1 foot
or less building to 2 to 4 feet tonight. Waves 3 to 5 feet
Friday.

$$


Wagner

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes