Aurora in Portland on April 18, 2025

April 18, 2025

Portland change region

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Probability of aurora in Portland

Probability of aurora as of end of day, April 18, 2025, Portland time

0 % Portland

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of April 18, 2025, Portland time

Aurora over North America

Changes in the auroral oval on April 18, 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 April 18, 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 April 18, 2025.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

1 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

3 % Bismarck

1 % Olympia

2 % Helena

2 % Saint Paul

19 % Fairbanks

8 % Anchorage

11 % Juneau

4 % Hooper Bay

8 % Nome

14 % Kotzebue

20 % Utqiagvik

4 % Bethel

11 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from April 17 to 18, 2025 in the northern hemisphere, Portland time

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