Aurora in Thunder bay on September 28, 2025

September 28, 2025

Thunder bay change region

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Probability of aurora in Thunder bay

Probability of aurora as of end of day, September 28, 2025, Thunder bay time

9 % Thunder bay

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of September 28, 2025, Thunder bay time

Aurora over North America

Changes in the auroral oval on September 28, 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 September 28, 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 September 28, 2025.

3 % Ottawa

2 % Toronto

4 % Montreal

1 % Vancouver

6 % Calgary

13 % Edmonton

1 % Hamilton (Canada)

5 % Quebec

12 % Winnipeg

1 % Kitchener

12 % Saskatoon

8 % Red deer

35 % Salluit

50 % Arviat

46 % Yellowknife

14 % Whitehorse

41 % Thompson

6 % Prince george

38 % Rankin Inlet

24 % Iqaluit

30 % Inuvik

7 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from September 27 to 28, 2025 in the northern hemisphere, Thunder bay time

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