Aurora in Phoenix on February 4, 2026

February 4, 2026

Phoenix change region

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Probability of aurora in Phoenix

Probability of aurora as of end of day, February 4, 2026, Phoenix time

0 % Phoenix

Aurora intensity index

Auroral intensity index and estimated minimum latitude of auroral observations at zenith as of the end of February 4, 2026, Phoenix time

Aurora over North America

Changes in the auroral oval on February 4, 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 February 4, 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 February 4, 2026.

0 % Washington

1 % New York

3 % Chicago

1 % Philadelphia

6 % Seattle

3 % Detroit

2 % Portland

1 % Boston

3 % Madison

12 % Bismarck

3 % Olympia

7 % Helena

6 % Saint Paul

94 % Fairbanks

50 % Anchorage

58 % Juneau

30 % Hooper Bay

54 % Nome

75 % Kotzebue

75 % Utqiagvik

28 % Bethel

60 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from February 3 to 4, 2026 in the northern hemisphere, Phoenix time

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