Aurora in Lethbridge on October 4, 2025

October 4, 2025

Lethbridge change region

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Probability of aurora in Lethbridge

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

5 % Lethbridge

Aurora intensity index

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

7 % Calgary

16 % Edmonton

0 % Hamilton (Canada)

2 % Quebec

12 % Winnipeg

0 % Kitchener

14 % Saskatoon

10 % Red deer

17 % Salluit

25 % Arviat

36 % Yellowknife

20 % Whitehorse

33 % Thompson

8 % Prince george

18 % Rankin Inlet

12 % Iqaluit

26 % 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, Lethbridge time

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