Dense Fog Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
249 PM CDT Wed May 14 2025
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-150400-
/O.CON.KMKX.MF.Y.0005.000000T0000Z-250516T0000Z/
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-
249 PM CDT Wed May 14 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THURSDAY...
* WHAT...Dense fog will reduce visibility to 1 NM or less, with
pockets of less than 1/4 NM at times.
* WHERE...All Open Waters of Lake Michigan.
* WHEN...Until 7 PM CDT Thursday.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
249 PM CDT Wed May 14 2025
LMZ643>646-150400-
/O.CON.KMKX.MF.Y.0005.000000T0000Z-250516T0000Z/
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
249 PM CDT Wed May 14 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THURSDAY...
* WHAT...Dense fog will reduce visibility to around 1/4 NM or
less.
* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.
* WHEN...Until 7 PM CDT Thursday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
Sheppard
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
316 PM CDT Wed May 14 2025
LMZ740>743-150415-
/O.CON.KLOT.MF.Y.0004.000000T0000Z-250515T1700Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
316 PM CDT Wed May 14 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT THURSDAY...
* WHAT...Dense fog will reduce visibility to 1/2 NM or less.
* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet
Harbor IL to Gary IN.
* WHEN...Until noon CDT Thursday.
* 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
Issued by National Weather Service Milwaukee/Sullivan WI
1031 AM CDT Wed May 14 2025
LMZ542-543-142345-
/O.EXT.KGRB.MF.Y.0003.000000T0000Z-250516T0000Z/
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
1031 AM CDT Wed May 14 2025
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THURSDAY...
* WHAT...Dense fog will reduce visibility to 1 NM or less today
and 1/2 NM or less tonight into Thursday.
* WHERE...Lake Michigan nearshore waters from Sturgeon Bay to
Sheboygan.
* WHEN...Until 7 PM CDT Thursday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
MRC
