Station Name: GRAND PORTAGE RIVER AT GRAND PORTAGE MN
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 623 feet

Nearest Address:
1 Upper Rd
Grand Portage, MN 55605
Cook County

GPS Coordinates: 47.9634982, -89.6834233

Nearby Water Temperatures

yellow warning - air quality - in effect

Effective: Mon July 20, 2026, 1:57 AM
Expires: Mon July 20, 2026, 4:59 PM

Smoke from wildfires in northwestern Ontario continues to cause poor air quality and reduced visibility. Poor conditions are expected to improve gradually today. Air quality and visibility due to wildfires smoke can change rapidly over short distances and from hour to hour. ### As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events. You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance. People more likely to be impacted by wildfire smoke, including people aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition, and people who work outdoors, should reduce or reschedule strenuous activities outdoors and seek medical attention if experiencing symptoms. For further information visit the website https://www.airqualityontario.com/ or contact the Ontario Ministry of the Environment, Conservation and Parks at 416-314-6666. Visit http://www.airhealth.ca for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values. Please continue to monitor alerts and forecasts issued by Environment Canada.

When indoors, keep windows and doors closed as much as possible. When there is an extreme heat event occurring with poor air quality, prioritize keeping cool. Protect your indoor air from wildfire smoke. Actions can include using the highest quality air filter that your ventilation system can handle and/or a certified portable air cleaner that can filter fine particles. If you must spend time outdoors, a well-constructed, well-fitting and properly worn respirator type mask (such as a NIOSH-certified N95 or equivalent respirator) can reduce your exposure to the fine particles in the smoke. Even though exposure may be reduced, there can still be risks to health. Check in on others who are in your care or live nearby who may be more likely to be impacted by wildfire smoke. Always follow guidance from local authorities. Learn more at https://www.canada.ca/wildfire-smoke.

yellow warning - air quality - in effect

Effective: Mon July 20, 2026, 1:57 AM
Expires: Mon July 20, 2026, 4:59 PM

### As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events. You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance. People more likely to be impacted by wildfire smoke, including people aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition, and people who work outdoors, should reduce or reschedule strenuous activities outdoors and seek medical attention if experiencing symptoms. For further information visit the website https://www.airqualityontario.com/ or contact the Ontario Ministry of the Environment, Conservation and Parks at 416-314-6666. Visit http://www.airhealth.ca for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values. Please continue to monitor alerts and forecasts issued by Environment Canada.

When indoors, keep windows and doors closed as much as possible. When there is an extreme heat event occurring with poor air quality, prioritize keeping cool. Protect your indoor air from wildfire smoke. Actions can include using the highest quality air filter that your ventilation system can handle and/or a certified portable air cleaner that can filter fine particles. If you must spend time outdoors, a well-constructed, well-fitting and properly worn respirator type mask (such as a NIOSH-certified N95 or equivalent respirator) can reduce your exposure to the fine particles in the smoke. Even though exposure may be reduced, there can still be risks to health. Check in on others who are in your care or live nearby who may be more likely to be impacted by wildfire smoke. Always follow guidance from local authorities. Learn more at https://www.canada.ca/wildfire-smoke.

yellow warning - severe thunderstorm - ended

Effective: Mon July 20, 2026, 6:51 AM
Expires: Mon July 20, 2026, 7:51 AM

Severe thunderstorms associated with this alert have weakened or moved out of the area. ###

yellow warning - severe thunderstorm - in effect

Effective: Mon July 20, 2026, 5:46 AM
Expires: Mon July 20, 2026, 8:45 AM

At 5:46 a.m. CDT (5:46 a.m. EST, 6:46 a.m. EDT), Environment Canada meteorologists are tracking a line of severe thunderstorms capable of producing strong wind gusts and heavy rain. Thunderstorm Location: extending from 25 km northwest of O'Connor to Gunflint Lake Motion: Moving southeast at 55 km/h Hazards: Wind: strong (up to 90 km/h) Rain: heavy (15 - 50 mm) Locations in the Path: Weikwabinonaw Lake Gunflint Lake Arrow Lake Provincial Park La Verendrye Provincial Park Kakabeka Falls Provincial Park Kakabeka Falls Hymers Pigeon River Provincial Park ### Local utility outages are likely. There is a risk of injury. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris. When thunder roars, go indoors! Lightning kills and injures Canadians every year. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

yellow warning - severe thunderstorm - in effect

Effective: Mon July 20, 2026, 5:46 AM
Expires: Mon July 20, 2026, 8:45 AM

At 5:46 a.m. CDT (5:46 a.m. EST, 6:46 a.m. EDT), Environment Canada meteorologists are tracking a line of severe thunderstorms capable of producing strong wind gusts and heavy rain. ### Local utility outages are likely. There is a risk of injury. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.

Take immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris. When thunder roars, go indoors! Lightning kills and injures Canadians every year. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.