Aurora in Anchorage on August 21, 2025

August 21, 2025

Anchorage change region

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Probability of aurora in Anchorage

Probability of aurora as of end of day, August 21, 2025, Anchorage time

2 % Anchorage

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of August 21, 2025, Anchorage time

Aurora over North America

Changes in the auroral oval on August 21, 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 August 21, 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 August 21, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

0 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

0 % Bismarck

0 % Olympia

0 % Helena

0 % Saint Paul

7 % Fairbanks

2 % Anchorage

2 % Juneau

0 % Hooper Bay

2 % Nome

5 % Kotzebue

5 % Utqiagvik

0 % Bethel

2 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from August 20 to 21, 2025 in the northern hemisphere, Anchorage time

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