Aurora in Calgary on May 16, 2025

May 16, 2025

Calgary change region

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Probability of aurora in Calgary

Probability of aurora as of end of day, May 16, 2025, Calgary time

10 % Calgary

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of May 16, 2025, Calgary time

Aurora over North America

Changes in the auroral oval on May 16, 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 16, 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 16, 2025.

1 % Ottawa

1 % Toronto

2 % Montreal

3 % Vancouver

10 % Calgary

20 % Edmonton

1 % Hamilton (Canada)

3 % Quebec

17 % Winnipeg

1 % Kitchener

18 % Saskatoon

13 % Red deer

22 % Salluit

28 % Arviat

40 % Yellowknife

23 % Whitehorse

40 % Thompson

11 % Prince george

19 % Rankin Inlet

16 % Iqaluit

33 % Inuvik

5 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from May 15 to 16, 2025 in the northern hemisphere, Calgary time

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