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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, May 04, 2025 08:49:00

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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
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G
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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

News Archive

Previous SWPC news items.

News Archive

Originally Posted
Live Webcast Today - IN PROGRESS NOW Thursday, October 29, 2015 - 13:47
ACE SIS instrument and GOES Proton Flux S1 - Solar Radiation Storm Expected Thursday, October 29, 2015 - 04:49
Interplanetary Shock Passage Observed at the ACE Satellite Saturday, October 24, 2015 - 19:09
G1 (Minor) Geomagnetic Storms Likely on 24-25 October 2015 Friday, October 23, 2015 - 09:25
Large coronal hole persists on far side of the Sun Sometimes the Aurora can be Predicted Thursday, October 22, 2015 - 13:04

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