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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, October 24, 2025 21:55:50

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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

News Archive

Previous SWPC news items.

News Archive

Originally Posted
R3 (Strong) Radio Blackout Observed at 03/0222 UTC Friday, May 3, 2024 - 03:15
Strong (G3) Storm Periods Observed - 02 May 2024 Thursday, May 2, 2024 - 18:28
Periodic Network Outages Expected on 02 May 2024 Wednesday, May 1, 2024 - 14:33
SWPC Network Outage Wednesday, May 1, 2024 - 09:58
R2 (Moderate) HF Radio Blackout Observed Wednesday, May 1, 2024 - 01:31

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