Aurora in Helena on November 27, 2025

November 27, 2025

Helena change region

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Probability of aurora in Helena

Probability of aurora as of end of day, November 27, 2025, Helena time

2 % Helena

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of November 27, 2025, Helena time

Aurora over North America

Changes in the auroral oval on November 27, 2025 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 November 27, 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 United States

Estimated probabilities of aurora observations at zenith for cities in United States as of end of day November 27, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

5 % Bismarck

1 % Olympia

2 % Helena

2 % Saint Paul

38 % Fairbanks

15 % Anchorage

20 % Juneau

8 % Hooper Bay

17 % Nome

28 % Kotzebue

37 % Utqiagvik

7 % Bethel

19 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from November 26 to 27, 2025 in the northern hemisphere, Helena time

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