Aurora in Thunder bay on May 31, 2025

May 31, 2025

Thunder bay change region

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Probability of aurora in Thunder bay

Probability of aurora as of end of day, May 31, 2025, Thunder bay time

5 % Thunder bay

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of May 31, 2025, Thunder bay time

Aurora over North America

Changes in the auroral oval on May 31, 2025 in Canada from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Aurora in the northern hemisphere

Changes in the auroral oval on May 31, 2025 in the northern hemisphere from the beginning to the end of the day, Coordinated Universal Time (UTC)

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Probability of aurora in cities of Canada

Estimated probabilities of aurora observations at zenith for cities in Canada as of end of day May 31, 2025.

1 % Ottawa

1 % Toronto

2 % Montreal

1 % Vancouver

4 % Calgary

8 % Edmonton

1 % Hamilton (Canada)

3 % Quebec

7 % Winnipeg

1 % Kitchener

7 % Saskatoon

5 % Red deer

19 % Salluit

24 % Arviat

24 % Yellowknife

8 % Whitehorse

23 % Thompson

4 % Prince george

18 % Rankin Inlet

13 % Iqaluit

20 % Inuvik

6 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from May 30 to 31, 2025 in the northern hemisphere, Thunder bay time

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