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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, November 08, 2025 21:46:45

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Space Weather Conditions
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24-Hour Observed Maximums
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Latest Observed
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R1-R2 --
R3-R5 --
S1 or greater --
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R1-R2 --
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S1 or greater --
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R1-R2 --
R3-R5 --
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Current Space Weather Conditions
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R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

One CME passed, more on the way.

GOES CCOR-1 Image of a CME from the Northeast
One CME passed, more on the way.
published: Friday, November 07, 2025 20:10 UTC

EVENTS:

Coronal mass ejections (CMEs) are eruptions of solar material and strong magnetic fields. When they arrive at Earth, a geomagnetic storm can result.  Fast wind streams from features called Coronal Holes can also drive geomagnetic storms.  Earth is currently experiencing the impacts from both.

EXPECTATIONS:

A fast solar wind stream is expected to continue to influence Earth’s magnetic field. One CME appears to have  passed with little additional impact.  Another CME is anticipated on 08 Nov and two more were launched overnight.  The latest CMEs are being analyzed and modeled.

EFFECTS:

Limited, minor effects to some technological infrastructure possible, but usually mitigatable. Aurora visibility will vary based on storm strength.  Monitor our website for updates and Aurora model output.