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National Oceanic and Atmospheric Administration

Saturday, November 23, 2024 12:04:42

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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G
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Latest Observed
R
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S
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G
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
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Current Space Weather Conditions
on NOAA Scales
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

Geomagnetic Activity Continues: G3-Strong storms possible

Estimated Planetary K index (3-hour data) chart
Geomagnetic Activity Continues: G3-Strong storms possible
published: Friday, August 28, 2015 17:49 UTC

Enhanced levels of geomagnetic storming continue as lingering effects from a previous coronal mass ejection (CME) further agitated the Earth's magnetosphere.  As a result, a G3 (Strong) Geomagnetic Storm Warning has been issued, valid through 0300 (EDT) on 28 Aug (28/0700 UTC).  Aurora watchers can check out our Ovation Aurora Forecast model, located here, to see the locations that would have the best chance to view the Northern (Southern) lights.  Stay tuned here for future updates.