NWS Duluth MNXH.W 0003July 26, 2026
Extreme Heat Warning: Carlton/South St. Louis, MN
The National Weather Service office in Duluth issued an extreme heat warning for Carlton/South St. Louis in Minnesota, which was in force until 9:00 p.m. local time on July 26. It was the 3rd extreme heat warning the NWS office in Duluth issued in 2026. Minnesota had 10 extreme heat warnings in July 2026, against 2 in an average July of 2008-2025 (Minnesota's extreme heat warnings by year).
ExpiredWarning
In force for 10 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Duluth MN
- Area
- Carlton/South St. Louis
- State
- Minnesota
- Level
- Warning
- Issued
- 9:13 a.m. CDT, July 26, 2026
- In force from
- 11:00 a.m. CDT, July 26, 2026
- Expires
- 9:00 p.m. CDT, July 26, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KDLH XH.W 0003
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* WHAT...For the Dense Fog Advisory, visibility one-quarter mile or less in dense fog. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 97 expected. * WHERE...Carlton and South St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Low visibility could make driving conditions hazardous.
What the agency told people to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.