Aurora in Calgary on July 31, 2025

July 31, 2025

Calgary change region

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Probability of aurora in Calgary

Probability of aurora as of end of day, July 31, 2025, Calgary time

3 % Calgary

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of July 31, 2025, Calgary time

Aurora over North America

Changes in the auroral oval on July 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 July 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 July 31, 2025.

0 % Ottawa

0 % Toronto

1 % Montreal

0 % Vancouver

3 % Calgary

8 % Edmonton

0 % Hamilton (Canada)

1 % Quebec

6 % Winnipeg

0 % Kitchener

6 % Saskatoon

4 % Red deer

12 % Salluit

17 % Arviat

19 % Yellowknife

9 % Whitehorse

20 % Thompson

4 % Prince george

12 % Rankin Inlet

9 % Iqaluit

14 % Inuvik

4 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from July 30 to 31, 2025 in the northern hemisphere, Calgary time

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