Air Quality Alert
MNZ010>012-018>021-025-026-033>038-211400-
Koochiching-North St. Louis-Northern Cook and Lake-North Itasca-
Central St. Louis-Southern Lake-Southern Cook-North Cass-
South Itasca-South Cass-Crow Wing-Northern Aitkin-South Aitkin-
Carlton and South St. Louis-Pine-
Including the cities of International Falls, Ely, Isabella,
Bigfork, Hibbing, Two Harbors, Silver Bay, Grand Marais, Walker,
Grand Rapids, Pine River, Brainerd, Hill City, Aitkin, Duluth,
Pine City, and Hinckley
353 PM CDT Sun Jul 20 2025
...AIR QUALITY ALERT REMAINS IN EFFECT UNTIL 9 AM CDT MONDAY...
* WHAT...The Minnesota Pollution Control Agency has continued 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, north central, northwest, and northeast
Minnesota.
* WHEN...Until 9 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...Moderate to heavy surface smoke from
Canadian wildfires will remain draped across much of northern and
central Minnesota through the evening before retreating back
north and exiting the region through the morning on Monday. Based
on the latest observations and model data, the air quality alert
has been expanded a bit further south into central Minnesota, and
has been cancelled across much of northeastern Minnesota.
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.
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Green Bay WI
321 PM CDT Sun Jul 20 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-212030-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
321 PM CDT Sun Jul 20 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...Tonight
Smoke from Canadian wildfires should reach the surface in spots,
leading to locally poor air quality and reduced visibilities.
.DAYS TWO THROUGH SEVEN...Monday through Sunday
Smoke from Canadian wildfires should reach the surface in parts
of north central and central Wisconsin on Monday, resulting in
locally poor air quality and reduced visibilities.
Periodic strong to severe thunderstorms and heavy rainfall will
impact parts of the region from Tuesday through Thursday night.
Northern Wisconsin should be most favored for storms from Tuesday
through Wednesday night, with the threat increasing farther
southeast Thursday into Thursday night.
Hot and very humid conditions are expected during the middle of
the week, especially on Wednesday, when heat indices should reach
95 to 105 degrees. A Heat Advisory may eventually be needed on
Wednesday, especially across parts of central and east central
Wisconsin.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
256 PM CDT Sun Jul 20 2025
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
212000-
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-
256 PM CDT Sun Jul 20 2025
This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.
.DAY ONE...Tonight.
Potential for an area of thunderstorms to move into western
Minnesota late tonight early Monday morning. A few could be strong
to severe, capable of producing strong winds.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Increasing heat and humidity will return starting Tuesday and
persist through much of this week, including heat index values
returning to the low to upper 90s.
Several rounds of thunderstorms are expected Tuesday through
Thursday, although it is too early to determine any severe
thunderstorm or heavy rain potential.
.SPOTTER INFORMATION STATEMENT...
SKYWARN spotter activation will not be needed through tonight.
$$
BPH
Hazardous Weather Outlook
National Weather Service Marquette MI
322 PM EDT Sun Jul 20 2025
LMZ221-248-250-211930-
Green Bay North of line from Cedar River MI to Rock Island
Passage-Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
322 PM EDT Sun Jul 20 2025
This Hazardous Weather Outlook is for portions of Northern Lake
Michigan.
.DAY ONE...Tonight
Smoke from Canadian wildfires will lead to hazy skies tonight. A
smokey smell and reduced air quality are also possible.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Next shot for showers and thunderstorms comes late Monday night
into Tuesday across the west half.
Multiple rounds of rain and thunderstorms possible Tuesday night
through Friday morning.
.SPOTTER INFORMATION STATEMENT...
The need for weather spotter reports is not anticipated at this
time.
$$
RM
Hazardous Weather Outlook
National Weather Service Marquette MI
322 PM EDT Sun Jul 20 2025
LSZ162-240>251-263>267-211930-
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-
322 PM EDT Sun Jul 20 2025 /222 PM CDT Sun Jul 20 2025/
This Hazardous Weather Outlook is for portions of Central Lake
Superior...Eastern Lake Superior and Western Lake Superior.
.DAY ONE...Tonight
Smoke from Canadian wildfires will lead to hazy skies tonight. A
smokey smell and reduced air quality are also possible.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Next shot for showers and thunderstorms comes late Monday night
into Tuesday across the west half.
Multiple rounds of rain and thunderstorms possible Tuesday night
through Friday morning.
.SPOTTER INFORMATION STATEMENT...
The need for weather spotter reports is not anticipated at this
time.
$$
Hazardous Weather Outlook
National Weather Service Marquette MI
322 PM EDT Sun Jul 20 2025
MIZ001>007-009>014-084-085-211930-
Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce-
Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft-
Southern Houghton-Northern Schoolcraft-
322 PM EDT Sun Jul 20 2025 /222 PM CDT Sun Jul 20 2025/
This Hazardous Weather Outlook is for portions of central Upper
Michigan and western Upper Michigan.
.DAY ONE...Tonight
Smoke from Canadian wildfires will lead to hazy skies tonight.
Smoke may mix to the surface, resulting in a smokey smell and
reduced air quality.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Next shot for showers and thunderstorms comes late Monday night
into Tuesday across the west half.
Multiple rounds of rain and thunderstorms possible Tuesday night
through Friday morning.
.SPOTTER INFORMATION STATEMENT...
The need for weather spotter reports is not anticipated at this
time.
$$
Hazardous Weather Outlook
National Weather Service Duluth MN
449 AM CDT Sun Jul 20 2025
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-211000-
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-
449 AM CDT Sun Jul 20 2025
This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.
.DAY ONE...Today and Tonight
Smoke will continue to linger over the Northland today through
tonight. The worst conditions will be this morning with some
improvement during the evening and overnight hours. An Air
Quality Alert remains in effect and includes more details for the
expected impacts.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Smoke will remain over portions of the Northland on Monday morning.
Please refer to the Air Quality Alert for additional details.
There will be several rounds of thunderstorms this upcoming week
starting on Monday morning. Storms may be strong to severe on
Tuesday into early Wednesday morning. Potential hazards include
damaging winds, large hail, and localized flooding resulting from
heavy rainfall.
Very warm and humid conditions are expected on Wednesday with heat
indices exceeding 90 degrees for portions of the area south of
Minnesota Highway 210 and U.S. Highway 2 in northwest Wisconsin.
.SPOTTER INFORMATION STATEMENT...
Skywarn spotter activation will not be needed today or tonight.
$$
