Aurora in Pierre on September 14, 2025

September 14, 2025

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Probability of aurora in Pierre

Probability of aurora as of end of day, September 14, 2025, Pierre time

5 % Pierre

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of September 14, 2025, Pierre time

Aurora over North America

Changes in the auroral oval on September 14, 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 September 14, 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 September 14, 2025.

0 % Washington

0 % New York

2 % Chicago

0 % Philadelphia

10 % Seattle

2 % Detroit

4 % Portland

1 % Boston

4 % Madison

15 % Bismarck

6 % Olympia

12 % Helena

8 % Saint Paul

80 % Fairbanks

39 % Anchorage

53 % Juneau

19 % Hooper Bay

35 % Nome

53 % Kotzebue

68 % Utqiagvik

19 % Bethel

49 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from September 13 to 14, 2025 in the northern hemisphere, Pierre time

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