Aurora in Cheyenne on April 17, 2026

April 17, 2026

Cheyenne change region

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Probability of aurora in Cheyenne

Probability of aurora as of end of day, April 17, 2026, Cheyenne time

0 % Cheyenne

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of April 17, 2026, Cheyenne time

Aurora over North America

Changes in the auroral oval on April 17, 2026 in United States 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 17, 2026 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 United States

Estimated probabilities of aurora observations at zenith for cities in United States as of end of day April 17, 2026.

0 % Washington

0 % New York

1 % Chicago

0 % Philadelphia

3 % Seattle

1 % Detroit

1 % Portland

0 % Boston

2 % Madison

7 % Bismarck

2 % Olympia

4 % Helena

4 % Saint Paul

31 % Fairbanks

12 % Anchorage

17 % Juneau

7 % Hooper Bay

13 % Nome

21 % Kotzebue

36 % Utqiagvik

7 % Bethel

15 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from April 16 to 17, 2026 in the northern hemisphere, Cheyenne time

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