Special Marine Warning
Special Marine Warning
LMZ846-847-872-874-060600-
/O.NEW.KGRR.MA.W.0029.260606T0425Z-260606T0600Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Grand Rapids MI
1225 AM EDT Sat Jun 6 2026
The National Weather Service in Grand Rapids has issued a
* Special Marine Warning for...
Nearshore and Open Waters from Holland to Whitehall MI...
* Until 200 AM EDT.
* At 1224 AM EDT, strong thunderstorms were located along a line
extending from The White Lake Pierheads to 23 nm east of North Pt.
Lt., moving southeast at 30 knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
* Locations impacted include...
Port Sheldon Harbor, White Lake Pier Heads, Grand Haven Light,
Muskegon Light, Holland Light, and The White Lake Pierheads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 4277 8705 4326 8712 4341 8653 4341 8644
4308 8625 4296 8622 4277 8621
TIME...MOT...LOC 0424Z 336DEG 30KT 4336 8642 4313 8734
HAIL...0.00IN
WIND...>34KTS
$$
DUKE
Dense Fog Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
632 PM CDT Fri Jun 5 2026
LMZ261-362-364-366-563-565-567-868-060745-
/O.EXB.KMKX.MF.Y.0008.000000T0000Z-260606T1800Z/
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
632 PM CDT Fri Jun 5 2026
...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT SATURDAY...
* WHAT...Dense fog will reduce visibility to 1 NM or less.
* WHERE...Northern Open Waters of Lake Michigan.
* WHEN...Until 1 PM CDT Saturday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
Special Weather Statement
Special Weather Statement
National Weather Service Grand Rapids MI
1104 PM EDT Fri Jun 5 2026
MIZ037-043-060430-
Oceana MI-Mason MI-
1104 PM EDT Fri Jun 5 2026
...Strong thunderstorms will impact portions of Mason and Oceana
Counties between 1145 PM and 1230 AM EDT...
At 11 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 12 miles southeast of Two Creeks, WI to near
Oostburg, WI. Movement was east at 40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Ludington... Hart... Shelby...
Scottville... Pentwater... Fountain...
Free Soil... Hamlin Lake... Mears...
Silver Lake SP... Ludington SP... Weare...
Elbridge... Colfax... New Era...
Rothbury... Custer... Walkerville...
Walhalla... St. Huberts...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4417 8607 4347 8606 4348 8646 4360 8654
4367 8654 4375 8645 4380 8643 4396 8646
4406 8651 4412 8643 4418 8639
TIME...MOT...LOC 0259Z 286DEG 35KT 4420 8734 4386 8750 4365 8783
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
$$
OSTUNO
Marine Weather Statement
Marine Weather Statement
National Weather Service Chicago/Romeoville
1055 PM CDT Fri Jun 5 2026
LMZ740-777-060430-
1055 PM CDT Fri Jun 5 2026
...A STRONG THUNDERSTORM APPROACHING THE WATERS...
The areas affected include...
Nearshore Waters from Winthrop Harbor to Wilmette Harbor...
Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid
Lake...
At 1054 PM CDT, Doppler radar indicated strong thunderstorms,
capable of producing winds to around 30 knots and small hail. These
thunderstorms were located from near Gurnee to Waukegan Harbor,
moving east at 30 knots.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners can expect gusty winds to around 30 knots, locally higher
waves, and lightning strikes. Boaters should seek safe harbor
immediately until this storm passes.
&&
LAT...LON 4246 8716 4224 8714 4227 8783 4230 8783
4231 8782 4233 8782 4233 8783 4237 8783
4237 8782 4236 8782 4238 8781 4239 8780
4248 8780
$$
Ratzer
Marine Weather Statement
National Weather Service Gaylord MI
1140 PM EDT Fri Jun 5 2026
LMZ344>346-364-366-060445-
/O.CON.KAPX.MA.W.0023.000000T0000Z-260606T0445Z/
1140 PM EDT Fri Jun 5 2026
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT...
For the following areas...
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid
lake...
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid
Lake...
Manistee to Point Betsie MI...
Point Betsie to Sleeping Bear Point MI...
Sleeping Bear Point to Grand Traverse Light MI...
At 1139 PM EDT, strong thunderstorms were located along a line
extending from 9 nm southwest of South Fox Island to 6 nm north of
Point Betsie to 8 nm northwest of Big Sable Point Light, moving east
at 30 knots.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
Locations impacted include...
Northport, Empire, Glen Arbor, Point Betsie, North Manitou Island,
Sleeping Bear Point, Arcadia, Leland, Pyramid Point, South Manitou
Island, Frankfort, and Cat Head Point.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to safe harbor immediately as gusty winds and high waves are
expected.
&&
LAT...LON 4442 8662 4473 8643 4499 8635 4533 8618
4529 8551 4497 8570 4491 8579 4491 8591
4486 8601 4474 8603 4467 8619 4456 8616
4441 8619 4422 8630 4426 8634 4428 8642
4422 8697
TIME...MOT...LOC 0339Z 282DEG 28KT 4533 8603 4481 8624 4414 8667
HAIL...0.00IN
WIND...>34KTS
$$
JPB
Marine Weather Statement
National Weather Service Milwaukee/Sullivan WI
1040 PM CDT Fri Jun 5 2026
LMZ643>645-669-671-673-060515-
1040 PM CDT Fri Jun 5 2026
...STRONG THUNDERSTORMS OVER THE WATERS...
The areas affected include...
Lake Michigan nearshore and open waters to mid lake from Sheboygan WI
to Wind Point WI...
At 1039 PM CDT, Doppler radar indicated strong thunderstorms, capable
of producing winds to around 30 knots. These thunderstorms were
located along a line extending from 21 nm west of Little Sable Point
Light to 7 nm southwest of Port Washington, moving southeast at 30
knots.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners can expect gusty winds to around 30 knots, locally higher
waves, and lightning strikes. Boaters should seek safe harbor
immediately until these storms pass.
&&
LAT...LON 4339 8787 4349 8779 4354 8780 4363 8713
4339 8715 4278 8706 4278 8775 4286 8784
4297 8785 4303 8790 4307 8786 4313 8790
4318 8788 4326 8791
$$
CMILLER
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
644 PM CDT Fri Jun 5 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-062345-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
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 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
644 PM CDT Fri Jun 5 2026
This Hazardous Weather Outlook is for the open waters of Lake
Michigan.
.DAY ONE...Tonight
A Marine Dense Fog Advisory is in effect for the northern half of
the lake for visibilities 1 NM or less.
Isolated thunderstorms expected late tonight.
.DAYS TWO THROUGH SEVEN...Saturday through Friday
Areas of dense fog remain possible through Saturday midday, and a
Marine Dense Fog Advisory is in effect.
Chance of thunderstorms Sunday afternoon through Tuesday.
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
400 AM EDT Fri Jun 5 2026
LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-060800-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM
off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
400 AM EDT Fri Jun 5 2026
This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.
.DAY ONE...Today and Tonight
There is a chance of thunderstorms this afternoon and evening. Severe
weather is not anticipated, although a few storms may produce winds
in excess of 35 knots and heavy rainfall. Storm motion will be west
to east at 35 knots.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Additional thunderstorms are possible early Saturday afternoon, in
which isolated severe weather is possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated today and tonight.
$$
You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.
MV
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
400 AM EDT Fri Jun 5 2026
MIZ047>049-053>055-060>063-068>070-075-076-082-083-060800-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
400 AM EDT Fri Jun 5 2026
This hazardous weather outlook is for southeast Michigan.
.DAY ONE...Today and Tonight
There is a chance of thunderstorms this afternoon and evening. Severe
weather is not anticipated, although a few storms may produce winds
in excess of 40 mph and heavy rainfall. Storm motion will be west to
east at 40 mph.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday
Additional thunderstorms are possible early Saturday afternoon, in
which isolated severe weather is possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated today and tonight.
$$
