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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, November 28, 2024 09:17:28

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
no data
S
no data
G
no data
Latest Observed
R
no data
S
no data
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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
no data
S
no data
G
no data
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 Storm Conditions Expected for 25 Apr

Geomagnetic Storm Conditions Expected for 25 Apr
published: Sunday, April 25, 2021 23:47 UTC

Warnings for G1-G2 (Minor - Moderate) Geomagnetic Storm levels have been issued in response to what appears to be an early arrival of an anticipated coronal mass ejection that left the Sun on 22 Apr. The enhancement in solar wind parameters were  first observed by the DSCOVR spacecraft at the L1 point at 24/2221 UTC. The transient solar wind feature is expected to cause auroral enhancements that maybe visible at night in the higher latitudes under favorable sky conditions. Current watches, warnings and alerts are available at https://www.swpc.noaa.gov/products/notifications-timeline.