Aurora in Portland on March 21, 2025

March 21, 2025

Portland change region

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Probability of aurora in Portland

Probability of aurora as of end of day, March 21, 2025, Portland time

1 % Portland

Aurora intensity index

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

Aurora over North America

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

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

3 % Seattle

0 % Detroit

1 % Portland

0 % Boston

1 % Madison

7 % Bismarck

2 % Olympia

4 % Helena

3 % Saint Paul

39 % Fairbanks

17 % Anchorage

23 % Juneau

9 % Hooper Bay

17 % Nome

29 % Kotzebue

37 % Utqiagvik

9 % Bethel

21 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from March 20 to 21, 2025 in the northern hemisphere, Portland time

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