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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Duluth MN
1041 AM CDT Sun Aug 1 2021

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-
1041 AM CDT Sun Aug 1 2021

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

.DAY ONE...Today and Tonight

Smoke from wildfires will continue to affect air quality today,
with the worst conditions possible this afternoon and evening over
the International Border and MN Arrowhead. Air Quality Alerts
remain in effect until noon today in Wisconsin and through the day
in Minnesota.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Smoke is expected to continue to move through the Northland and
Air Quality Alerts remain in effect until 3 PM Tuesday for
northeast Minnesota.

There is a chance of showers and thunderstorms along the
International Border Tuesday afternoon. A more active pattern with
showers and thunderstorms chances towards the end of this week.


Skywarn spotter activation will not be needed today or tonight.


Air Quality Alert

Carlton/South St. Louis-Central St. Louis-Crow Wing-Koochiching-North
Cass-North Itasca-North St. Louis-Northern Aitkin-Northern
Cook/Northern Lake-Pine-South Aitkin-South Cass-South Itasca-Southern
Cook/North Shore-Southern Lake/North Shore-
Including the tribal nations of Fond du Lac, Grand Portage, Leech
Lake, Mille Lacs, and Red Lake
Including the cities of Brainerd, Duluth, Ely, Hibbing, Hinckley,
International Falls, and Two Harbors
947 AM CDT Sat Jul 31 2021



* WHAT...The Minnesota Pollution Control Agency has issued an Air
Quality Alert for fine particle pollution. The Air Quality Index
(AQI) is expected to reach the Purple or Very Unhealthy category.
This will be a long duration and unprecedented significant air
quality event for Minnesota.

* WHERE...North central and northeast Minnesota.

* WHEN...Through 3 PM CDT Tuesday.

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

* ADDITIONAL DETAILS...Smoke from Canadian wildfires lingers over
  most of Minnesota. Northerly winds behind a cold front will bring
  more smoke from wildfires located north of the Canadian border in
  Ontario and Manitoba into Minnesota today. Smoke will continue
  pouring into the state throughout Saturday and into Sunday. High
  pressure will build over the area for Sunday and remain over the
  area for Monday into Tuesday morning. Smoke will recirculate under
  the high pressure, leading to prolonged period of heavy smoke.
  Fine particle levels will begin to improve Tuesday as southerly
  winds start moving the smoke out of the state. Fine particle
  levels are expected to reach the Purple AQI category, a level
  considered very unhealthy for everyone, across north central
  Minnesota. This area includes Hibbing, Brainerd, and the tribal
  nations of Red Lake, Leech Lake, and Mille Lacs. Fine particle
  levels are expected to reach the Red AQI category, a level
  considered unhealthy for everyone, across northern Minnesota. This
  area includes Ely and the tribal nation of Fond du Lac. Fine
  particle levels are expected to reach the Orange AQI category, a
  level that is considered unhealthy for sensitive groups, for far
  northeastern Minnesota. This area includes Duluth, Two Harbors,
  and the tribal nation of Grand Portage.


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.

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 Minnesota Air mobile app, visit You can find
additional information about health and air quality at


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