Dense Smoke Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Green Bay WI
713 PM CDT Sat Jul 18 2026
LMZ522-542-543-190900-
/O.CON.KGRB.MS.Y.0002.000000T0000Z-260720T1200Z/
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI-
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI-
713 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
* WHAT...Dense smoke will reduce visibility to 1 to 2 NM.
* WHERE...Green Bay south of line from Oconto WI to Little
Sturgeon Bay WI, Sturgeon Bay to Two Rivers WI and Two Rivers
to Sheboygan WI.
* WHEN...Until 7 AM CDT Monday.
* 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.
&&
$$
JLA
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ080-669-671-673-675-777-779-870-872-874-876-878-190400-
/O.CON.KMKX.MS.Y.0002.260718T2000Z-260720T1200Z/
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
* WHAT...Dense smoke will reduce visibility to 1 nautical mile.
* WHERE...Southern Half of Open Waters of Lake Michigan.
* WHEN...Until 7 AM CDT Monday.
* IMPACTS...Low visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ261-362-364-366-563-565-567-868-190400-
/O.CON.KMKX.MS.Y.0002.000000T0000Z-260720T1200Z/
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-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
* WHAT...Dense smoke will reduce visibility to 1 nautical mile.
* WHERE...Northern Half of Open Waters of Lake Michigan.
* WHEN...Until 7 AM CDT Monday.
* 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.
&&
$$
Wood
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ643-190400-
/O.CON.KMKX.MS.Y.0002.260718T2000Z-260720T1200Z/
/O.CON.KMKX.SC.Y.0070.260719T0000Z-260719T0700Z/
Sheboygan to Port Washington WI-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 2 AM CDT SUNDAY...
* WHAT...For the Small Craft Advisory, waves of 3 to 5 feet. For
the Dense Smoke Advisory, dense smoke will reduce visibility to
1 nautical mile.
* WHERE...Sheboygan to Port Washington WI.
* WHEN...For the Dense Smoke Advisory, from 3 PM this afternoon
to 7 AM CDT Monday. For the Small Craft Advisory, from 7 PM
this evening to 2 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ644>646-190400-
/O.CON.KMKX.MS.Y.0002.260718T2000Z-260720T1200Z/
/O.CON.KMKX.SC.Y.0070.260719T0000Z-260719T1200Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 7 AM CDT SUNDAY...
* WHAT...For the Small Craft Advisory, waves of 4 to 6 feet. For
the Dense Smoke Advisory, dense smoke will reduce visibility to
1 nautical mile.
* WHERE...Port Washington WI to Winthrop Harbor IL.
* WHEN...For the Dense Smoke Advisory, from 3 PM this afternoon
to 7 AM CDT Monday. For the Small Craft Advisory, from 7 PM
this evening to 7 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
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.
&&
$$
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
914 PM CDT Sat Jul 18 2026
LMZ740>745-191015-
/O.EXT.KLOT.SC.Y.0072.000000T0000Z-260719T1200Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
914 PM CDT Sat Jul 18 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM CDT SUNDAY...
* WHAT...Northeast winds to 25 kt and significant waves to 7 ft
occasionally to 9 ft.
* WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL
to Michigan City IN.
* WHEN...Until 7 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ643-190400-
/O.CON.KMKX.MS.Y.0002.260718T2000Z-260720T1200Z/
/O.CON.KMKX.SC.Y.0070.260719T0000Z-260719T0700Z/
Sheboygan to Port Washington WI-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 2 AM CDT SUNDAY...
* WHAT...For the Small Craft Advisory, waves of 3 to 5 feet. For
the Dense Smoke Advisory, dense smoke will reduce visibility to
1 nautical mile.
* WHERE...Sheboygan to Port Washington WI.
* WHEN...For the Dense Smoke Advisory, from 3 PM this afternoon
to 7 AM CDT Monday. For the Small Craft Advisory, from 7 PM
this evening to 2 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
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.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
246 PM CDT Sat Jul 18 2026
LMZ644>646-190400-
/O.CON.KMKX.MS.Y.0002.260718T2000Z-260720T1200Z/
/O.CON.KMKX.SC.Y.0070.260719T0000Z-260719T1200Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
246 PM CDT Sat Jul 18 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 7 AM CDT SUNDAY...
* WHAT...For the Small Craft Advisory, waves of 4 to 6 feet. For
the Dense Smoke Advisory, dense smoke will reduce visibility to
1 nautical mile.
* WHERE...Port Washington WI to Winthrop Harbor IL.
* WHEN...For the Dense Smoke Advisory, from 3 PM this afternoon
to 7 AM CDT Monday. For the Small Craft Advisory, from 7 PM
this evening to 7 AM CDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
&&
$$
Beach Hazards Statement
Coastal Hazard Message
National Weather Service Chicago IL
916 PM CDT Sat Jul 18 2026
ILZ006-103-104-INZ001-002-191030-
/O.CON.KLOT.BH.S.0007.000000T0000Z-260719T1500Z/
Lake IL-Northern Cook-Central Cook-Lake IN-Porter-
916 PM CDT Sat Jul 18 2026
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...
* WHAT...High wave action and dangerous currents expected at Lake
Michigan beaches. Waves 4 to 7 feet expected.
* WHERE...In Illinois, Lake, Northern Cook and Central Cook
Counties. In Indiana, Lake and Porter Counties.
* WHEN...Through Sunday morning.
* IMPACTS...Swimming conditions will be life threatening,
especially for inexperienced swimmers. For information on swim
advisories or bans at Chicago beaches: www. cpdbeaches. com.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid dangerous swimming conditions
and do not venture out onto piers, jetties, breakwalls, or other
shoreline structures.
&&
$$
Lakeshore Hazard Message
National Weather Service Milwaukee/Sullivan WI
649 PM CDT Sat Jul 18 2026
WIZ060-066-071-072-190800-
/O.CON.KMKX.BH.S.0011.260719T0000Z-260719T1200Z/
Ozaukee-Milwaukee-Racine-Kenosha-
649 PM CDT Sat Jul 18 2026
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
MORNING...
* WHAT...Life threatening waves of 3 to 5 feet and dangerous
currents are expected.
* WHERE...Ozaukee, Milwaukee, Racine and Kenosha Counties.
* WHEN...From this evening through early Sunday morning.
* IMPACTS...Dangerous swimming conditions are expected due to
high waves and onshore winds.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay out of the water and away from dangerous areas like piers
and breakwalls. Strong structural and longshore currents are
expected. Rip currents are possible.
&&
$$
Air Quality Alert
MNZ079-086>088-094>096-201600-
Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Including the cities of Wabasha, Dodge Center, Rochester, Winona,
Austin, Preston, and Caledonia
339 PM CDT Sat Jul 18 2026
...AIR QUALITY ALERT IN EFFECT FROM 3 AM SUNDAY TO 11 AM CDT
MONDAY...
* WHAT...The Minnesota Pollution Control Agency has issued an Air
Quality Alert for fine particles pollution. The Air Quality Index
(AQI) is expected to reach the Red or Unhealthy category.
* WHERE...East central, southeast, south central, and northeast
Minnesota.
* WHEN...From 3 AM CDT Sunday until 11 AM CDT Monday.
* IMPACTS...Some members of the general public may experience health
effects. Sensitive groups, such as people with lung disease (including
asthma), heart disease, and children and older adults, may
experience health effects.
* ADDITIONAL DETAILS...Heavy smoke from wildfires will persist across
northeast Minnesota tonight into Sunday morning. Increasing
southwesterly winds Sunday afternoon will lead to improved air quality
for much of northeast Minnesota, though areas near the shores of
Lake Superior and the wildfires themselves may continue to
experience poor air quality through the afternoon. The alert for
this part of the state is currently set to expire at 7 p.m. Sunday.
Only localized poor air quality near the wildfires will continue
thereafter. Heavy smoke is expected to then enter southeastern and
far east central Minnesota from the east early Sunday morning and
persist through Monday morning. Red, meaning unhealthy for
everyone, is the expected AQI category for all of this alert.
PRECAUTIONARY/PREPAREDNESS ACTIONS... Sensitive groups, such as
people with lung disease (including asthma), heart disease, and
children and older adults, should avoid prolonged or heavy exertion.
The general public should limit prolonged or heavy exertion. Reduce
or eliminate activities that contribute to air pollution, such as
outdoor burning, and use of residential wood burning devices. Reduce
vehicle trips and vehicle idling as much as possible. Keep windows
closed overnight to prevent smoke from getting indoors.
For information on current air quality conditions in your area and
to sign up for daily air quality forecasts and alert notifications by
email, text message, phone, or the EPA AirNow mobile app, visit
https://www.pca.state.mn.us/air- water-land- climate/current-air-
quality-conditions. You can find additional information about health
and air quality at https://www.pca.state.mn.us/air-water-land-
climate/air-quality- and-health. Poor air quality can impact pets and
animals. More information regarding pet and animal safety can be
found at https://www.epa.gov/system/files/documents/2026-06/protect-
your- pets-factsheet.pdf and https://www.avma.org/resources/pet-
owners/emergencycare/wildfire-smoke-and-animals.
$$
ILZ001-002-007-009-015>018-024>026-034-035-191800-
Jo Daviess-Stephenson-Carroll-Whiteside-Rock Island-Henry IL-Bureau-
Putnam-Mercer-Henderson-Warren-Hancock-McDonough-
Including the cities of Galena, Freeport, Mount Carroll, Sterling,
Moline, Rock Island, Geneseo, Princeton, Hennepin, Aledo, Oquawka,
Monmouth, Carthage, and Macomb
1247 PM CDT Sat Jul 18 2026
...AIR QUALITY ALERT IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CDT
SUNDAY NIGHT...
The Illinois Environmental Protection Agency has issued an Areawide
Air Pollution Action Day for Sunday July 19th for portions of
Illinois.
An Areawide Air Pollution Action Day is declared when weather conditions
are such that widespread ozone and or particulate levels are forecast
to be at OR ABOVE the Unhealthy for Sensitive Groups (USG) category in
all or nearly all Illinois AQI forecast sectors.
Areas both inside and outside of the Action Day coverage area may
experience smoke/PM2.5 to a varying degree and duration both later
today and Sunday. Those with air quality concerns or anyone in
Illinois with outdoor plans is encouraged to check current NowCast
readings or sign up for EnviroFlash alerts on AirNow.gov. Before
going outside, checking the NowCast AQI will help identify periods of
both poor and cleaner air quality regardless of the level of the
daily forecasted AQI.
AQI Category Guidance
Unhealthy for Sensitive Groups (USG) - Members of sensitive groups
may experience health effects. The general public is less likely to
be affected.
Sensitive groups: Make outdoor activities shorter and less intense.
Its OK to be active outdoors, but take more breaks. Watch for
symptoms such as coughing or shortness of breath. People with asthma:
Follow your asthma action plan and keep quick relief medicine handy.
People with heart disease: Symptoms such as palpitations, shortness
of breath, or unusual fatigue may indicate a serious problem. If you
have any of these, contact your health care provider.
Unhealthy - Sensitive groups: Avoid long or intense outdoor
activities. Consider rescheduling or moving activities indoors.
Everyone else: Reduce long or intense activities. Take more breaks
during outdoor activities.
Air quality forecasts and current air quality can be found at
www.airnow.gov
Media Contact... Illinois EPA
$$
ZU
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-200500-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-Southern Will-
Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein,
Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb, Sycamore, Aurora,
Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville,
Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield,
Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,
and Beecher
1231 PM CDT Sat Jul 18 2026
...AIR QUALITY ALERT IN EFFECT NOW THROUGH SUNDAY NIGHT...
The Illinois Environmental Protection Agency has issued an Areawide
Air Pollution Action Day for Sunday July 19th for portions of
Illinois. This is in addition to the ongoing Chicago Area Air
Pollution Action Day in effect today.
An Areawide Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are forecast to be at OR ABOVE the Unhealthy for Sensitive Groups
(USG) category in all or nearly all Illinois AQI forecast sectors.
Areas both inside and outside of the Action Day coverage area may
experience smoke/PM2.5 to a varying degree and duration both later
today and Sunday. Those with air quality concerns or anyone in
Illinois with outdoor plans is encouraged to check current NowCast
readings or sign up for EnviroFlash alerts on AirNow. gov. Before
going outside, checking the NowCast AQI will help identify periods of
both poor and cleaner air quality regardless of the level of the
daily forecasted AQI.
AQI Category Guidance Unhealthy for Sensitive Groups (USG) - Members
of sensitive groups may experience health effects. The general
public is less likely to be affected. Sensitive groups: Make outdoor
activities shorter and less intense. Its OK to be active outdoors,
but take more breaks. Watch for symptoms such as coughing or
shortness of breath. People with asthma: Follow your asthma action
plan and keep quick relief medicine handy. People with heart disease:
Symptoms such as palpitations, shortness of breath, or unusual
fatigue may indicate a serious problem. If you have any of these,
contact your health care provider. Unhealthy - Sensitive groups:
Avoid long or intense outdoor activities. Consider rescheduling or
moving activities indoors. Everyone else: Reduce long or intense
activities. Take more breaks during outdoor activities.
Media Contact...Illinois EPA
$$
WIZ046-047-051-052-056>060-062>072-201700-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
Including the cities of Montello, Westfield, Oxford, Neshkoro,
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth,
Sheboygan Falls, Howards Grove, Oostburg, Baraboo, Reedsburg,
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin,
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown,
Hartford, Mequon, Cedarburg, Grafton, Dodgeville, Mineral Point,
Barneveld, Madison, Watertown, Fort Atkinson, Jefferson,
Waukesha, Brookfield, New Berlin, Menomonee Falls, Muskego,
Milwaukee, Darlington, Shullsburg, Benton, Belmont, Argyle,
Blanchardville, Monroe, Brodhead, Janesville, Beloit, Whitewater,
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
941 AM CDT Sat Jul 18 2026
The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Columbia, Dane,
Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha,
Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk,
Sheboygan, Walworth, Washington, Waukesha.
WHAT...The PM2.5 AQI is expected to reach the Very Unhealthy
(Purple) to Unhealthy (Red) level.
WHERE...Statewide.
WHEN...Until noon Monday.
Precautionary/Preparedness Actions:
For Very Unhealthy (Purple) AQI:
Sensitive groups: Avoid all physical activity outdoors.
Reschedule to a time when air quality is better or move
activities indoors.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Limit outdoor physical activity. Go indoors if you
have symptoms.
For Unhealthy (Red) AQI:
Sensitive groups: Consider rescheduling or moving all activities
inside. Go inside if you have symptoms.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Keep outdoor activities shorter and less intense.
Go inside if you have symptoms.
Additional Details:
Another round of smoke will move in from the north-northeast
throughout the day on Saturday before settling over the state on
Sunday. Most areas are expected to observe Unhealthy (Red) AQI
PM2.5, with the heaviest impacts to the northeast where Very
Unhealthy (Purple) AQI PM2.5 will be possible. Some areas to the
southwest may only experience Unhealthy for Sensitive Groups
(Orange) AQI PM2.5. This round of smoke may not reach the
southwestern half of the state before sunset Saturday, meaning
the smoke will arrive overnight, with statewide impacts expected
by 6 a.m. Sunday morning.
For more information on current air quality, please see:
https://airquality.wi.gov
$$
Sheppard
WIZ017-029-032>034-041>044-053>055-061-201700-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
Including the cities of Medford, Neillsville, Alma, Arcadia,
Whitehall, Black River Falls, La Crosse, Sparta, Tomah, Mauston,
Friendship, Viroqua, Prairie Du Chien, Richland Center,
and Platteville
937 AM CDT Sat Jul 18 2026
The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Adams, Buffalo,
Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe,
Richland, Taylor, Trempealeau, Vernon
WHAT...The PM2.5 AQI is expected to reach the Very Unhealthy
(Purple) to Unhealthy (Red) level.
WHERE...Statewide.
WHEN...Until noon Monday.
Precautionary/Preparedness Actions:
For Very Unhealthy (Purple) AQI:
Sensitive groups: Avoid all physical activity outdoors.
Reschedule to a time when air quality is better or move
activities indoors.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Limit outdoor physical activity. Go indoors if you
have symptoms.
For Unhealthy (Red) AQI:
Sensitive groups: Consider rescheduling or moving all activities
inside. Go inside if you have symptoms.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Keep outdoor activities shorter and less intense.
Go inside if you have symptoms.
Additional Details:
Another round of smoke will move in from the north-northeast
throughout the day on Saturday before settling over the state on
Sunday. Most areas are expected to observe Unhealthy (Red) AQI
PM2.5, with the heaviest impacts to the northeast where Very
Unhealthy (Purple) AQI PM2.5 will be possible. Some areas to the
southwest may only experience Unhealthy for Sensitive Groups
(Orange) AQI PM2.5. This round of smoke may not reach the
southwestern half of the state before sunset Saturday, meaning
the smoke will arrive overnight, with statewide impacts expected
by 6 a.m. Sunday morning.
For more information on current air quality, please see:
https://airquality.wi.gov
$$
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-201700-
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-
Including the cities of Eagle River, Lac Du Flambeau,
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle,
Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Keshena, Neopit,
Mountain, Lakewood, Townsend, Sturgeon Bay, Fish Creek,
Sister Bay, Wausau, Shawano, Marshfield, Wisconsin Rapids,
Stevens Point, Plover, New London, Waupaca, Clintonville,
Appleton, Green Bay, Kewaunee, Luxemburg, Redgranite, Wautoma,
Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein,
Manitowoc, Two Rivers, Harmony, Peshtigo, Porterfield, Crivitz,
High Falls Reservoir, Loomis, Middle Inlet, Little Suamico,
Sobieski, Brookside, Oconto, and Pensaukee
934 AM CDT Sat Jul 18 2026
The Wisconsin Department of Natural Resources has issued an Air
Quality Advisory for the following counties: Brown, Calumet,
Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Manitowoc,
Marathon, Marinette, Menominee, Oconto, Oneida, Outagamie,
Portage, Shawano, Vilas, Waupaca, Waushara, Winnebago, and Wood.
WHAT...The PM2.5 AQI is expected to reach the Very Unhealthy
(Purple) to Unhealthy (Red) level.
WHERE...Statewide.
WHEN...Until noon Monday.
Precautionary/Preparedness Actions:
For Very Unhealthy (Purple) AQI:
Sensitive groups: Avoid all physical activity outdoors.
Reschedule to a time when air quality is better or move
activities indoors.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Limit outdoor physical activity. Go indoors if you
have symptoms.
For Unhealthy (Red) AQI:
Sensitive groups: Consider rescheduling or moving all activities
inside. Go inside if you have symptoms.
People with asthma: Follow your asthma action plan and keep
quick-relief medicine handy.
People with heart disease: Symptoms such as palpitations,
shortness of breath, or unusual fatigue may indicate a serious
problem. If you have any of these, contact your health care
provider.
Everyone else: Keep outdoor activities shorter and less intense.
Go inside if you have symptoms.
Additional Details:
Another round of smoke will move in from the north-northeast
throughout the day on Saturday before settling over the state on
Sunday. Most areas are expected to observe Unhealthy (Red) AQI
PM2.5, with the heaviest impacts to the northeast where Very
Unhealthy (Purple) AQI PM2.5 will be possible. Some areas to the
southwest may only experience Unhealthy for Sensitive Groups
(Orange) AQI PM2.5. This round of smoke may not reach the
southwestern half of the state before sunset Saturday, meaning
the smoke will arrive overnight, with statewide impacts expected
by 6 a.m. Sunday morning.
For more information on current air quality, please see:
https://airquality.wi.gov
$$
Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Green Bay WI
1106 PM CDT Sat Jul 18 2026
LMZ521-522-541>543-200415-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
1106 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.
.DAY ONE...Tonight
Wildfire smoke will lead to visibility reductions, potentially
under 1 mile at times.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
Conditions hazardous to small craft are likely Monday into Monday
night.
Wildfire smoke will lead to visibility reductions, potentially
under 1 mile at times Sunday into Monday and possibly at times
later in the week.
There is a chance of thunderstorms Monday and Monday night that
would pose a hazard to mariners.
$$
JLA
Hazardous Weather Outlook...UPDATED
National Weather Service Green Bay WI
1106 PM CDT Sat Jul 18 2026
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-200415-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
1106 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
Higher concentrations of wildfire smoke will impact visibility
and air quality.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
Wildfire smoke will continue to impact visibility and air quality
at times Sunday into Monday morning.
Thunderstorms are possible early Monday, then a round of storms is
likely Monday afternoon into Monday night, where there is a level
3 of 5 risk of severe storms.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
920 PM CDT Sat Jul 18 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-200230-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
920 PM CDT Sat Jul 18 2026 /1020 PM EDT Sat Jul 18 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
High waves will create dangerous swimming conditions at Lake
Michigan beaches through Sunday morning.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday Morning...
High Swim Risk Lake Michigan Beaches.
Monday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Tuesday...
Limited Thunderstorm Risk.
High Swim Risk Lake Michigan Beaches.
Wednesday...
High Swim Risk Lake Michigan Beaches.
DISCUSSION...
Additional rounds of thunderstorms are possible on Monday some of
which could be strong to severe.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
920 PM CDT Sat Jul 18 2026
LMZ740>745-200230-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
920 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Hazardous conditions for small craft.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Monday...
Hazardous conditions for small craft are likely.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday...
Hazardous conditions for small craft are likely.
Limited Thunderstorm Risk.
Wednesday...
Hazardous conditions for small craft are likely.
$$
Visit us at www.weather.gov/chicago
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
653 PM CDT Sat Jul 18 2026
LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-200000-
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-
653 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for the open waters of Lake
Michigan.
.DAY ONE...Tonight
A Dense Smoke Advisory is in effect, as wildfire smoke moving
southward across the lake into tonight is expected to contribute
to lower visibilities and unhealthy air quality.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
The Dense Smoke Advisory continues Sunday into later Sunday
night, as wildfire smoke lingers across the lake and contributes
to lower visibilities and unhealthy air quality. It may linger
into Monday morning.
Strong to severe storms are possible mainly Monday afternoon and
night, with all severe weather hazards possible.
A few southerly gales are possible Monday afternoon and evening,
with a few northwest gales possible Tuesday night into Wednesday.
$$
www.weather.gov/mkx
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
653 PM CDT Sat Jul 18 2026
LMZ643>646-200000-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
653 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.
.DAY ONE...Tonight
A Dense Smoke Advisory is in effect later this afternoon and
tonight, as wildfire smoke moving southward into the area is
expected to contribute to lower visibilities and unhealthy air
quality.
A Small Craft Advisory is in effect this evening into later
tonight for building waves.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
A Dense Smoke Advisory continues into later Sunday night, as
wildfire smoke lingers and continues to contribute to lower
visibilities and unhealthy air quality. It may linger into Monday
morning.
Severe storms are possible mainly Monday afternoon and evening,
with all severe weather hazards possible.
Winds and waves may reach Small Craft Advisory levels at times
Monday into Wednesday.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
653 PM CDT Sat Jul 18 2026
WIZ046-047-051-052-056>060-062>072-200000-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
653 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
The Wisconsin DNR has issued an Air Quality Advisory for all of
Wisconsin, as wildfire smoke moving southward into the state is
expected to contribute to lower visibilities and unhealthy air
quality.
There is a High Swim Risk for area beaches in Ozaukee, Milwaukee,
Racine and Kenosha Counties tonight, with a Moderate Swim Risk
for Sheboygan County beaches. Life threatening waves and currents
are expected in High Swim Risk areas. Stay out of the water, and
away from dangerous areas like piers, breakwalls and river
outlets.
.DAYS TWO THROUGH SEVEN...Sunday through Saturday
The Air Quality Advisory continues Sunday into Monday morning, as
wildfire smoke lingers and continues to contribute to lower
visibilities and unhealthy air quality.
Severe storms are possible mainly Monday afternoon and evening,
with all severe weather hazards possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed Monday afternoon and evening.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
309 PM CDT Sat Jul 18 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-192015-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
309 PM CDT Sat Jul 18 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
A heat advisory is in effect for most areas south of Interstate
80 in Iowa, and from near the Quad Cities metro area southward in
Illinois, where heat indices of 100 to 105 are possible.
Isolated to scattered thunderstorms are expected through late this
evening, mainly south of Interstate 80. There is a marginal,
level 1 out of 5, risk of severe storms. The primary threats will
be locally damaging winds, lightning, and heavy downpours. A
level 2, slight risk is forecast in portions of central Illinois,
including portions of Bureau and Putnam counties.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
Hot and humid conditions will return again on Monday and a heat
advisory may be needed for portions of the outlook area.
Thunderstorms will be possible on Monday, with the main severe
risk later Monday afternoon into Monday night. There is an
Enhanced Risk (level 3 of 5) for severe storms northwest of the
Quad Cities and a Slight Risk (level 2 of 5) to the east and
south.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed through this evening.
$$
ZU
