Aurora in San Antonio on August 15, 2026

August 15, 2026

San Antonio change region

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Probability of aurora in San Antonio

Probability of aurora as of end of day, August 15, 2026, San Antonio time

0 % San Antonio

Aurora intensity index

Auroral intensity index (1.7) and estimated minimum latitude of auroral observations at zenith as of the end of August 15, 2026, San Antonio time

Aurora over North America

Changes in the auroral oval on August 15, 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 August 15, 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 August 15, 2026.

0 % Washington

0 % New York

0 % Chicago

0 % Philadelphia

0 % Seattle

0 % Detroit

0 % Portland

0 % Boston

0 % Madison

1 % Bismarck

0 % Olympia

0 % Helena

1 % Saint Paul

7 % Fairbanks

2 % Anchorage

3 % Juneau

1 % Hooper Bay

2 % Nome

4 % Kotzebue

11 % Utqiagvik

1 % Bethel

3 % Cordova

Aurora intensity over 2 days

Changes in the auroral intensity index from August 14 to 15, 2026 in the northern hemisphere, San Antonio time. Maximum — 2.5/10

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