USCG Sector Detroit Dashboard

General Forecast

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Regional Waves

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through tomorrow
Significant
Occasional (top 10%)

Worded Forecasts

Lake Huron Open Waters

195
FZUS63 KDTX 121345
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
945 AM EDT Tue Aug 12 2025

For waters beyond five nautical miles off shore on Lake Huron

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...Low pressure, averaging 29.30 inches, tracks into
Hudson Bay and drags a cold front through the Great Lakes Tuesday
evening. Several rounds of showers and thunderstorms will be
possible until the front clears early Wednesday morning. High
pressure, 30.00 inches, then builds in for the latter half of the
work week.

LHZ361-122145-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...South winds 5 to 10 knots. Scattered showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...South winds 5 to 10 knots veering to the west after
midnight. Showers likely and a chance of thunderstorms in the
evening. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Waves 1 to 3 feet.
.THURSDAY...North winds 5 to 10 knots veering to the northeast
late in the morning...then becoming light and variable late in
the afternoon. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 5 to 10 knots veering to the west in
the late evening and early morning. A chance of showers. A chance
of thunderstorms until early evening. Waves 2 feet or less.


$$

LHZ362-363-462-122145-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...South winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Numerous showers and scattered
thunderstorms in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 15 knots veering to the west
early in the morning. A chance of showers and thunderstorms.
Waves 1 to 3 feet.
.WEDNESDAY...West winds 5 to 10 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Waves 2 to 4 feet.
.THURSDAY...North winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the evening. Waves 1 to 3 feet.
.FRIDAY...Light and variable winds becoming southeast 5 to
10 knots until early evening...then becoming south 10 to 15 knots
in the late evening and early morning. Waves 2 feet or less.
.SATURDAY...South winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
in the late evening and early morning. A chance of showers. Waves
1 to 3 feet.


$$

LHZ463-464-122145-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...South winds 5 to 10 knots. Scattered showers
late in the morning...then numerous showers and scattered
thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and overnight. Showers likely and a
chance of thunderstorms in the evening...then a chance of showers
and thunderstorms after midnight. Waves 1 to 3 feet.
.WEDNESDAY...West winds 5 to 10 knots. A chance of showers in the
morning. Waves 2 feet or less.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Waves 2 feet or
less.
.THURSDAY...North winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon...then becoming northeast 5 to
10 knots late in the evening. Waves 1 to 3 feet.
.FRIDAY...Light and variable winds becoming east 5 to 10 knots
early in the evening...then veering to the south in the late
evening and early morning. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and early morning. A chance of
showers until early morning. A chance of thunderstorms in the
late evening and early morning. Waves 2 feet or less.


$$

LHZ461-122145-
MAFOR 1215/
HURON NORTH 11406 12406 19409 11500 12600 12700. Waves 2 feet
or less.

HURON SOUTH 11500 12400 19409 12516 11610 11600 11700. Waves
1 to 3 feet.

$$

KDK

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftable (all lower case)

Graphical marine forecasts are available online at
weather.gov/greatlakes (all lower case)

Lake St. Clair

196
FZUS63 KDTX 121345
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
945 AM EDT Tue Aug 12 2025

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...Low pressure, averaging 29.30 inches, tracks into
Hudson Bay and drags a cold front through the Great Lakes Tuesday
evening. Several rounds of showers and thunderstorms will be
possible until the front clears early Wednesday morning. High
pressure, 30.00 inches, then builds in for the latter half of the
work week.

LCZ460-122145-
Lake St Clair-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Partly sunny. Scattered light showers in
the afternoon. Scattered thunderstorms late in the afternoon. Waves
2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. Partly cloudy this evening
becoming mostly cloudy. Scattered showers and a chance of
thunderstorms until early morning...then a chance of light showers
early in the morning. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots veering to the north
early in the afternoon. Partly sunny. A chance of light showers.
Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly clear. A
chance of light showers early in the evening. Waves 2 feet or less.
.THURSDAY...Northeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.FRIDAY...Southeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.SATURDAY...Southwest winds 5 to 10 knots. Mostly clear. Waves 2
feet or less.

$$

KDK

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes

WFO Detroit Nearshore

198
FZUS53 KDTX 121345
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
945 AM EDT Tue Aug 12 2025

For waters within five nautical miles of shore

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

LHZ422-122145-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 to 15 knots. Partly cloudy
late in the morning becoming mostly cloudy. Numerous showers and
isolated thunderstorms late in the morning, then numerous showers
and scattered thunderstorms in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 20 knots. Mostly cloudy early in
the evening becoming partly cloudy. Numerous showers in the
evening. A chance of thunderstorms. A chance of showers after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and afternoon. Partly cloudy with a
slight chance of showers and thunderstorms early in the morning,
then mostly sunny in the late morning and afternoon. Waves 2 feet
or less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 2 feet or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

$$

LHZ421-122145-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 to 15 knots. Partly cloudy.
Scattered showers late in the morning, then numerous showers and
scattered thunderstorms in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 20 knots. Mostly cloudy until
early morning becoming partly cloudy. Numerous showers in the
evening. A chance of thunderstorms. A chance of showers after
midnight. Waves 2 to 4 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and early afternoon, then veering to
the northeast early in the afternoon. Partly cloudy early in the
morning then clearing. A slight chance of showers and
thunderstorms early in the morning. Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 1 to 3 feet.

See Lake Huron Open Lake Forecast for days 3 through 5.

$$

LHZ441-122145-
Port Austin to Harbor Beach MI-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots increasing to
10 to 15 knots in the afternoon. Partly cloudy with scattered
showers late in the morning, then mostly cloudy with numerous
showers and scattered thunderstorms in the afternoon. Waves
2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots. Mostly cloudy until
early morning becoming partly cloudy. Numerous showers in the
evening. A chance of thunderstorms. A chance of showers after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and afternoon. Partly cloudy with a
chance of showers and a slight chance of thunderstorms early in
the morning, then mostly sunny in the late morning and afternoon.
Waves 2 feet or less.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Mostly clear.
Waves 1 to 3 feet.

See Lake Huron Open Lake Forecast for days 3 through 5.

$$

LHZ442-122145-
Harbor Beach to Port Sanilac MI-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots. Partly cloudy.
Scattered showers late in the morning, then numerous showers and
scattered thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Mostly cloudy.
Showers likely and a chance of thunderstorms until early morning,
then a chance of showers and a slight chance of thunderstorms
after midnight. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots veering to the north in the
late morning and afternoon. Partly cloudy with a chance of
showers and a slight chance of thunderstorms early in the
morning, then mostly sunny in the late morning and afternoon.
Waves 2 feet or less.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Mostly clear. Waves
2 feet or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

$$

LHZ443-122145-
Port Sanilac to Port Huron MI-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots increasing to
10 to 15 knots late in the afternoon. Partly cloudy. Scattered
showers late in the morning, then scattered showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Mostly cloudy.
Showers likely and a chance of thunderstorms until early morning,
then a chance of showers and a slight chance of thunderstorms
after midnight. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots veering to the north in the
late morning and afternoon. Partly cloudy until late afternoon
becoming mostly sunny. A slight chance of thunderstorms early in
the morning. A chance of showers until late afternoon. Waves
2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly clear.
Waves 2 feet or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

$$

LEZ444-122145-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
945 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots. Mostly sunny with
isolated showers late in the morning, then partly cloudy with
scattered showers and thunderstorms in the afternoon. Waves
2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots becoming west 10 to
15 knots after midnight. Partly cloudy with a chance of showers
and thunderstorms until early morning, then mostly cloudy with a
chance of showers and a slight chance of thunderstorms after
midnight. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots. Mostly cloudy early in the
morning becoming partly cloudy. A chance of showers and a slight
chance of thunderstorms until late afternoon, then a chance of
showers and thunderstorms early in the afternoon. Waves 2 feet or
less.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Mostly clear. A
chance of showers and thunderstorms early in the evening. Waves
2 feet or less.

See Lake Erie Open Lake Forecast for days 3 through 5.

The water temperature at Belle Isle is 79 degrees.

$$

KDK

You can obtain your latest National Weather Service forecasts online
a www.weather.gov/greatlakes

Lake Erie Open Waters

648
FZUS61 KCLE 121332
GLFLE

Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
932 AM EDT Tue Aug 12 2025

For waters beyond five nautical miles of shore on Lake Erie

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...
A cold front will approach the lake from the northwest today
before crossing the lake on Wednesday. High pressure 30.00 inches
will build south over the Great Lakes Thursday and Friday and exit
to the east over the weekend.

LEZ162-163-122015-
Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM
offshoreline to US-Canadian border-
Reno Beach to The Islands OH beyond 5NM off shoreline to US-
Canadian border-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots becoming south. A
slight chance of showers and thunderstorms early this afternoon.
A chance of showers and thunderstorms late. Waves 1 foot or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest. A chance
of showers and thunderstorms early, then showers likely with a
chance of thunderstorms. A chance of showers late. Waves 1 foot
or less.
.WEDNESDAY...West winds 5 to 10 knots. A chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots becoming
northeast. A chance of showers and thunderstorms in the evening.
Waves 1 foot or less.
.THURSDAY...Northeast winds 5 to 10 knots becoming east. Waves
1 foot or less.
.FRIDAY...East winds 10 knots or less becoming south. Waves
1 foot or less.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ164>167-122015-
The Islands to Vermilion OH beyond 5 nm off shoreline to US-
Canadian border-
Vermilion to Avon Point OH beyond 5 nm off shoreline to US-
Canadian border-
Avon Point to Willowick OH beyond 5 nm off shoreline to US-
Canadian border-Willowick to Geneva-on-the-
Lake OH beyond 5NM off shoreline to US-Canadian border-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 knots or less. Waves 1 foot
or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest. A slight
chance of showers and thunderstorms early, then a chance of
showers and thunderstorms. Showers likely with a slight chance of
thunderstorms late. Waves 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots. A chance of showers and
thunderstorms. Waves 2 feet or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northeast. A
chance of showers and thunderstorms in the evening. Waves 1 foot
or less.
.THURSDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less.
.FRIDAY...East winds 10 knots or less becoming south. Waves
1 foot or less.
.SATURDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ061-168-169-122015-
Ripley to Buffalo NY extending from 5NM off shoreline to US-
Canadian border-Geneva-on-the-
Lake to Conneaut OH beyond 5 nm off shoreline to US-
Canadian border-
Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-
Canadian border-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 knots or less becoming west.
A slight chance of showers and thunderstorms late this morning.
Waves 1 foot or less.
.TONIGHT...South winds 10 knots or less becoming southwest. A
slight chance of showers and thunderstorms in the evening, then a
chance of showers and thunderstorms after midnight. Showers
likely with a chance of thunderstorms late. Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northeast. A
chance of showers and thunderstorms in the evening. Waves 1 to
2 feet.
.THURSDAY...Northeast winds 10 knots or less becoming east. Waves
1 foot or less.
.FRIDAY...Southeast winds less than 10 knots becoming south.
Waves 1 foot or less.
.SATURDAY...South winds 5 to 10 knots becoming southwest. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ161-122015-
MAFOR 1215/
ERIE WEST 1/3 14400 11606 11506 12600. A chance of thunderstorms
tonight. Waves 1 foot or less.

ERIE CENTRAL 1/3 12500 12400 11500 12506 11600. A chance of
thunderstorms tonight and Wednesday morning. Waves 2 feet or
less.

ERIE EAST 1/3 11500 11600 11500 12400 11500 12506. A chance of
thunderstorms overnight and Wednesday morning. Waves 1 foot or
less.

$$

WFO Cleveland Nearshore

670
FZUS51 KCLE 121332
NSHCLE

Nearshore Marine Forecast
National Weather Service Cleveland OH
932 AM EDT Tue Aug 12 2025

For waters within five nautical miles of shore

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

LEZ142-143-122015-
Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 5 to 10 knots becoming south. A
slight chance of showers and thunderstorms this afternoon. Waves
1 foot or less.
.TONIGHT...Southwest winds 5 to 10 knots. Showers likely with a
chance of thunderstorms. Waves 1 foot or less.
.WEDNESDAY...West winds 5 to 10 knots becoming northwest. A
chance of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 10 knots or less becoming
northeast. A chance of showers and thunderstorms in the evening.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

See Lake Erie open lakes forecast for Thursday through Saturday.

The water temperature off Toledo is 79 degrees, off Cleveland 72
degrees, and off Erie 73 degrees.

$$

LEZ144>147-122015-
The Islands to Vermilion OH-Vermilion to Avon Point OH-
Avon Point to Willowick OH-Willowick to Geneva-on-the Lake OH-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 knots or less. A slight
chance of showers and thunderstorms this afternoon. Waves 1 foot
or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest. A chance
of showers and thunderstorms in the evening, then showers likely
with a chance of thunderstorms overnight. Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. A
chance of showers and thunderstorms. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots becoming
northeast. A chance of showers and thunderstorms in the evening.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

See Lake Erie open lakes forecast for Thursday through Saturday.

The water temperature off Toledo is 79 degrees, off Cleveland 72
degrees, and off Erie 73 degrees.

$$

LEZ148-149-122015-
Geneva-on-the-Lake to Conneaut OH-Conneaut OH to Ripley NY-
932 AM EDT Tue Aug 12 2025

.REST OF TODAY...Southwest winds 10 knots or less becoming west.
A slight chance of showers and thunderstorms late this morning. A
slight chance of showers and thunderstorms late. Waves 1 foot or
less.
.TONIGHT...South winds 10 knots or less becoming southwest. A
slight chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. Waves
1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 1 foot or less.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northeast. A
chance of showers and thunderstorms in the evening. Waves 1 foot
or less.

Winds and waves higher in and near thunderstorms.

See Lake Erie open lakes forecast for Thursday through Saturday.

The water temperature off Toledo is 79 degrees, off Cleveland 72
degrees, and off Erie 73 degrees.

$$