Aurora in Thompson on April 20, 2025

April 20, 2025

Thompson change region

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Probability of aurora in Thompson

Probability of aurora as of end of day, April 20, 2025, Thompson time

45 % Thompson

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of April 20, 2025, Thompson time

Aurora over North America

Changes in the auroral oval on April 20, 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 April 20, 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 April 20, 2025.

3 % Ottawa

2 % Toronto

4 % Montreal

2 % Vancouver

9 % Calgary

18 % Edmonton

1 % Hamilton (Canada)

5 % Quebec

16 % Winnipeg

1 % Kitchener

16 % Saskatoon

12 % Red deer

27 % Salluit

40 % Arviat

47 % Yellowknife

18 % Whitehorse

45 % Thompson

9 % Prince george

27 % Rankin Inlet

20 % Iqaluit

35 % Inuvik

6 % Cambridge Bay

Aurora intensity over 2 days

Changes in the auroral intensity index from April 19 to 20, 2025 in the northern hemisphere, Thompson time

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