Dense Fog Advisory
URGENT - WEATHER MESSAGE
National Weather Service Green Bay WI
946 PM CDT Wed Sep 10 2025
WIZ005-010>012-111100-
/O.NEW.KGRB.FG.Y.0007.250911T0300Z-250911T1400Z/
Vilas-Oneida-Forest-Florence-
Including the cities of Spread Eagle, Eagle River, Commonwealth,
Crandon, Rhinelander, Aurora, and Lac Du Flambeau
946 PM CDT Wed Sep 10 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THURSDAY...
* WHAT...Visibility one quarter to one half mile in dense fog.
* WHERE...Oneida, Vilas, Florence, and Forest Counties.
* WHEN...Until 9 AM CDT Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
For more information, visit us at http://www.weather.gov/GreenBay
GK
URGENT - MARINE WEATHER MESSAGE
National Weather Service Duluth MN
918 PM CDT Wed Sep 10 2025
LSZ121-140>148-150-111430-
/O.CON.KDLH.MF.Y.0020.000000T0000Z-250911T1800Z/
Chequamegon Bay-Bayfield to Oak Point WI-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
918 PM CDT Wed Sep 10 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THURSDAY...
* WHAT...Dense fog will reduce visibility to 1/4 NM or less.
* WHERE...Portions of Lake Superior.
* WHEN...Until 1 PM CDT Thursday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1017 PM EDT Wed Sep 10 2025
LSZ162-111430-
/O.CON.KMQT.MF.Y.0020.000000T0000Z-250911T1800Z/
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1017 PM EDT Wed Sep 10 2025 /917 PM CDT Wed Sep 10 2025/
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/
THURSDAY...
* WHAT...Dense fog will reduce visibility to less than one
nautical mile.
* WHERE...Lake Superior west of a line from Saxon Harbor WI to
Grand Portage MN beyond 5NM.
* WHEN...Until 2 PM EDT /1 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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Marquette MI
1017 PM EDT Wed Sep 10 2025
LSZ240>244-263-264-111430-
/O.CON.KMQT.MF.Y.0020.000000T0000Z-250911T1800Z/
Saxon Harbor WI to Black River MI-Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1017 PM EDT Wed Sep 10 2025 /917 PM CDT Wed Sep 10 2025/
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT /1 PM CDT/
THURSDAY...
* WHAT...Dense fog will reduce visibility to less than one
nautical mile.
* WHERE...Portions of Western Lake Superior.
* WHEN...Until 2 PM EDT /1 PM CDT/ Thursday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
859 PM CDT Wed Sep 10 2025
MNZ012-020-021-037-WIZ001>004-111400-
/O.EXT.KDLH.FG.Y.0018.250911T0200Z-250911T1600Z/
Northern Cook and Lake-Southern Lake-Southern Cook-Carlton and
South St. Louis-Douglas-Bayfield-Ashland-Iron-
Including the cities of Isabella, Washburn, Duluth, Hurley, Two
Harbors, Superior, Silver Bay, Bayfield, Ashland, and Grand
Marais
859 PM CDT Wed Sep 10 2025
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM CDT THURSDAY...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...In Minnesota, Carlton and South St. Louis, Cook and Lake
Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron
Counties. This includes the Tribal Lands of the Red Cliff Band,
the northwestern area of the Lac du Flambeau Band, the Fond du Lac
Band, the Grand Portage Reservation and the Bad River Reservation.
Other locations including the Apostle Islands National Lakeshore
and Madeline Island. This also includes the Boundary Waters
eastern and central area.
* WHEN...Until 11 AM CDT Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your low-beam headlights and fog lights,
and leave plenty of distance ahead of you.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
859 PM CDT Wed Sep 10 2025
MNZ019-025-026-033>036-038-WIZ006>008-111400-
/O.CON.KDLH.FG.Y.0018.250911T0600Z-250911T1600Z/
Central St. Louis-North Cass-South Itasca-South Cass-Crow Wing-
Northern Aitkin-South Aitkin-Pine-Burnett-Washburn-Sawyer-
Including the cities of Grand Rapids, Hayward, Spooner, Hill
City, Hinckley, Brainerd, Aitkin, Pine City, Grantsburg, Hibbing,
Pine River, and Walker
859 PM CDT Wed Sep 10 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT FROM 1 AM TO 11 AM CDT
THURSDAY...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...In Minnesota, Crow Wing, Aitkin, Pine, Cass, South Itasca,
and Central St. Louis Counties. In Wisconsin, Burnett, Sawyer, and
Washburn Counties. This includes the Tribal Lands of the Bois
Forte Band, Lake Vermilion area, the Lac Courte Oreilles
Reservation, the St. Croix Band in Burnett County and the Mille
Lacs Band, East Lake, Hinckley, Lena Lake and, Big Sandy Lake
areas.
* WHEN...From 1 AM to 11 AM CDT Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your low-beam headlights and fog lights,
and leave plenty of distance ahead of you.
&&
$$
For more information on Northland weather, visit www.weather.
gov/duluth
Britt
Special Weather Statement
Special Weather Statement
National Weather Service Green Bay WI
809 PM CDT Wed Sep 10 2025
WIZ005-010>013-018-019-030-035-036-110600-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Marathon-Wood-Portage-
809 PM CDT Wed Sep 10 2025
...PATCHY FOG TONIGHT...
Patchy fog has begun to formed over portions of far northern
Wisconsin this evening. Addtioanl fog develop will be possible
tonight across much of north-central, northeast, and central
Wisconsin. The fog may be locally dense, with visibility less
than one-half mile at times.
Motorists should be prepared for rapidly changing and poor
visibilities at times. When driving in fog, remember to slow down,
turn on your low-beam headlights, and maintain a safe distance
between you and the car in front of you.
$$
GK
Special Weather Statement
National Weather Service Marquette MI
814 PM EDT Wed Sep 10 2025
MIZ005-011-111200-
Marquette-Dickinson-
Including the cities of Gwinn, Marquette, and Iron Mountain
814 PM EDT Wed Sep 10 2025 /714 PM CDT Wed Sep 10 2025/
...PATCHY DENSE FOG TONIGHT...
Patchy dense fog is bringing visibilities down to a quarter mile
or less in spots across the area through tonight. If you find
yourself in a fog bank, be sure to have your low beam headlights
on and to drive a little slower than typical.
$$
TDUD
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service La Crosse WI
946 PM CDT Wed Sep 10 2025
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-120700-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
946 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...Tonight
Widespread fog tonight, which may be dense in spots along and
north of I-90.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
$$
KDS
Hazardous Weather Outlook
National Weather Service Duluth MN
338 PM CDT Wed Sep 10 2025
LSZ121-140>148-150-112045-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
338 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of Lake Superior
and the Nearshore waters of western Lake Superior.
.DAY ONE...This afternoon and Tonight
Widespread dense fog will persist this afternoon and tonight with
some improvement at times this afternoon. A Dense Fog Advisory is
in effect into Thursday morning.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Dense fog is expected to dissipate by late Thursday morning.
There is a chance for thunderstorms over western Lake Superior
Friday and Friday night. Occasional cloud-to-water lightning,
small hail, and wind gusts to 30 knots are the main threats.
Severe weather is not anticipated.
Several rounds of thunderstorms are possible next week.
$$
BJH
More information may be obtained at the following web address:
http://www.weather.gov/duluth
Hazardous Weather Outlook
National Weather Service Duluth MN
338 PM CDT Wed Sep 10 2025
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-112045-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
338 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.
.DAY ONE...This afternoon and Tonight
Areas of dense fog are likely once again tonight. Dense Fog
Advisories are in effect for much of the Northland through late
Thursday morning.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Areas of dense fog will dissipate by Thursday morning.
There is a chance of thunderstorms Friday and Friday night.
Storms should be confined to areas north of US-2 in Minnesota
during the day with the risk shifting east of US-53 in Minnesota
and Wisconsin Friday night. A few storms may be strong with hail
to penny size, occasional cloud-to-ground lightning, and wind
gusts of 30 to 50 mph.
Several rounds of thunderstorms are possible next week.
.SPOTTER INFORMATION STATEMENT...
Skywarn spotter activation will not be needed this afternoon or
tonight.
$$
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
244 PM CDT Wed Sep 10 2025
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
111945-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
244 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.
.DAY ONE...Tonight.
Patchy dense fog is possible tonight into early Thursday morning.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
SKYWARN spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
220 PM CDT Wed Sep 10 2025
LMZ521-522-541>543-111930-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
220 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...Tonight
Patchy fog may pose a hazard to navigation late tonight into
Thursday morning.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
Patchy fog may also pose a hazard to navigation late Thursday
night into Friday morning.
There is a chance of thunderstorms Friday night into Saturday, and
again during the early to mid part of next week. Any storm could
pose a hazard to mariners.
$$
MPC
Hazardous Weather Outlook
National Weather Service Green Bay WI
220 PM CDT Wed Sep 10 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-111930-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
220 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
Areas of fog, locally dense, are expected across north central,
central and far northeast Wisconsin late tonight into early
Thursday morning. Dense fog may result in hazardous travel
conditions.
.DAYS TWO THROUGH SEVEN...Thursday through Wednesday
Locally dense fog is possible across northern Wisconsin late
Thursday night into early Friday.
There is a chance of thunderstorms Friday night into Saturday,
and again during the early to mid part of next week.
.SPOTTER INFORMATION STATEMENT...
Spotters are requested to report any occurrences of fog with
visibilities below 1/4 mile to the National Weather Service in
Green Bay.
$$
Hazardous Weather Outlook
National Weather Service Marquette MI
255 PM EDT Wed Sep 10 2025
LMZ221-248-250-111900-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
255 PM EDT Wed Sep 10 2025
This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.
.DAY ONE...Rest of Today and Tonight
Patchy dense marine fog is possible tonight. See the latest
Nearshore Zone Forecast for additional details.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
The need for weather spotter reports is not anticipated at this
time.
$$
Hazardous Weather Outlook
National Weather Service Marquette MI
255 PM EDT Wed Sep 10 2025
LSZ162-240>251-263>267-111900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
Point Isabelle to Lower Entrance of Portage Canal MI-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-Huron Islands to Marquette MI-
Marquette to Munising MI-Munising to Grand Marais MI-
Grand Marais to Whitefish Point MI-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
255 PM EDT Wed Sep 10 2025 /155 PM CDT Wed Sep 10 2025/
This Hazardous Weather Outlook is for portions of Central Lake
Superior...Eastern Lake Superior and Western Lake Superior.
.DAY ONE...Rest of Today and Tonight
Areas of dense marine fog are being observed over the western
half of the lake today, and are expected to persist through
tonight. See the latest Open Lake Forecast and Marine Weather
Message for additional details.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Areas of dense marine fog are expected to persist over the western
half of the lake through Thursday afternoon.
.SPOTTER INFORMATION STATEMENT...
The need for weather spotter reports is not anticipated at this
time.
$$
CB
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
151 PM CDT Wed Sep 10 2025
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-111900-
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-
151 PM CDT Wed Sep 10 2025
This Hazardous Weather Outlook is for the open waters of Lake Michigan.
.DAY ONE...This Afternoon and Tonight
Patchy fog is possible tonight, particularly across the northern
half of Lake Michigan.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
There are chances for thunderstorms later Friday night into
Saturday night.
$$
www.weather.gov/mkx
