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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, December 07, 2025 05:03:18

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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.

DAP - temp Head Section

News Archive

Originally Postedsort descending
ACE Spacecraft Solar Wind Measurements showing arrival of shock. G3 (Strong) or Greater Geomagnetic storms expected Tuesday, March 17, 2015 - 06:39
Tutorial on electric power grid impacts Tuesday, March 17, 2015 - 15:04
Tutorial on electric power grid impacts Tuesday, March 17, 2015 - 15:04
What is a geomagnetic storm? Tuesday, March 17, 2015 - 15:08
Aurora photos: Upload your own or view others Tuesday, March 17, 2015 - 17:50

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