Station Name: 9099090 - Grand Marais, MN
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 617 feet

Nearest Address:
391 MN-61
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.749, -90.341

Nearby Water Temperatures

yellow watch - severe thunderstorm - in effect

Effective: Sun July 19, 2026, 2:51 PM
Expires: Mon July 20, 2026, 12:49 AM

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. What: Wind gusts up to 100 km/h. Up to ping pong sized hail. When: This afternoon into this evening. Additional information: A warm front pushing through the region may bring severe thunderstorms. ### Large hail can cause significant damage and injury. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Secure loose objects. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

yellow watch - severe thunderstorm - in effect

Effective: Sun July 19, 2026, 2:51 PM
Expires: Mon July 20, 2026, 12:49 AM

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. ### Large hail can cause significant damage and injury. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Secure loose objects. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.

orange warning - air quality - in effect

Effective: Sun July 19, 2026, 10:53 AM
Expires: Mon July 20, 2026, 2:53 AM

Smoke from wildfires in northwestern Ontario continues to cause very poor air quality and reduced visibility. Poor conditions are expected to improve gradually through tonight and Monday. Air quality and visibility due to wildfires smoke can change rapidly over short distances and from hour to hour. During heavy smoke conditions, everyone's health is at risk regardless of their age and health status. Consider limiting time outdoors. Coaches, sport officials and outdoor event and activity organizers should assess local air quality conditions and consider the level and type of activity involved, as well as the needs of participants and spectators into their planning decisions. ### 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 avoid 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, limit the time as much as possible. 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.

orange warning - air quality - in effect

Effective: Sun July 19, 2026, 10:53 AM
Expires: Mon July 20, 2026, 2:53 AM

### 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 avoid 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, limit the time as much as possible. 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 watch - severe thunderstorm - in effect

Effective: Sun July 19, 2026, 1:33 PM
Expires: Sun July 19, 2026, 11:32 PM

Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. What: Wind gusts up to 100 km/h. Quarter sized hail. When: This afternoon into this evening. Additional information: A warm front pushing through the region may bring severe thunderstorms. ### Large hail can cause significant damage and injury. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.

When thunder roars, go indoors! Lightning kills and injures Canadians every year. Secure loose objects. Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.