Aurora in Thompson on October 4, 2025

October 4, 2025

Thompson change region

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Probability of aurora in Thompson

Probability of aurora as of end of day, October 4, 2025, Thompson time

28 % Thompson

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of October 4, 2025, Thompson time

Aurora over North America

Changes in the auroral oval on October 4, 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 October 4, 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 October 4, 2025.

1 % Ottawa

1 % Toronto

1 % Montreal

1 % Vancouver

4 % Calgary

10 % Edmonton

0 % Hamilton (Canada)

2 % Quebec

9 % Winnipeg

0 % Kitchener

9 % Saskatoon

6 % Red deer

18 % Salluit

27 % Arviat

29 % Yellowknife

12 % Whitehorse

28 % Thompson

5 % Prince george

20 % Rankin Inlet

12 % Iqaluit

19 % Inuvik

5 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from October 3 to 4, 2025 in the northern hemisphere, Thompson time

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