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Hazardous Weather Outlook
National Weather Service Duluth MN
301 PM CDT Fri Jul 18 2025

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-192015-
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-
301 PM CDT Fri Jul 18 2025

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...This afternoon and Tonight

A few non-severe thunderstorms are possible this afternoon and
tonight across the Northland.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Smoke will bring very poor air quality to much of the Northland Saturday
afternoon and continue into Monday. An Air Quality Alert has been
issued for northeastern Minnesota.

Additional thunderstorms will be possible on Monday into Monday
night and again late Tuesday and Wednesday.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotter activation is not anticipated this afternoon or
tonight.

$$

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
229 PM CDT Fri Jul 18 2025

...AIR QUALITY ALERT FROM 1 PM CDT SATURDAY UNTIL 9 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 Purple or Very Unhealthy category.

* WHERE...North central, northeast, and northwest Minnesota.

* WHEN...1 PM CDT Saturday until 9 AM CDT Monday.

* IMPACTS...The risk of health effects is increased for everyone.

* ADDITIONAL DETAILS...Heavy surface smoke from Canadian
wildfires will drift south into Minnesota over the next several
days. This smoke will initially impact far northern Minnesota
early Saturday afternoon and then spread south and east through
the rest of the day and into the evening. Smoke lingers across
the region on Sunday with light winds in place, and then exits
back to the north through Monday morning. The highest smoke
concentrations are expected to be across far northern Minnesota
and the Arrowhead region from Saturday into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Sensitive groups, such as people with lung disease (including
asthma), heart disease, and children and older adults, should
avoid all physical activities outdoors. The general public should
avoid 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.

$$

MPCA


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