Aurora in Pierre on August 11, 2025

August 11, 2025

Pierre change region

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Probability of aurora in Pierre

Probability of aurora as of end of day, August 11, 2025, Pierre time

0 % Pierre

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of August 11, 2025, Pierre time

Aurora over North America

Changes in the auroral oval on August 11, 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 11, 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 11, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

0 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

1 % Bismarck

0 % Olympia

1 % Helena

1 % Saint Paul

8 % Fairbanks

3 % Anchorage

4 % Juneau

1 % Hooper Bay

3 % Nome

5 % Kotzebue

12 % Utqiagvik

1 % Bethel

4 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from August 10 to 11, 2025 in the northern hemisphere, Pierre time

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