Aurora in Portland on September 24, 2026

September 24, 2026

Portland change region

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Probability of aurora in Portland

Probability of aurora as of end of day, September 24, 2026, Portland time

1 % Portland

Aurora intensity index

Auroral intensity index (2.9) and estimated minimum latitude of auroral observations at zenith as of the end of September 24, 2026, Portland time

Aurora over North America

Changes in the auroral oval on September 24, 2026 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 24, 2026 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 24, 2026.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

2 % Seattle

0 % Detroit

1 % Portland

0 % Boston

1 % Madison

5 % Bismarck

1 % Olympia

3 % Helena

3 % Saint Paul

32 % Fairbanks

14 % Anchorage

17 % Juneau

7 % Hooper Bay

16 % Nome

25 % Kotzebue

30 % Utqiagvik

6 % Bethel

17 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from September 23 to 24, 2026 in the northern hemisphere, Portland time. Maximum — 3.6/10

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