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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, December 07, 2025 17:39:21

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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 Posted
CANCELLED: Service Interruption - Saturday, February 21st Tuesday, February 17, 2015 - 22:03
Falcon rocket carrying DSCOVR satellite DSCOVR headed to orbit! Wednesday, February 11, 2015 - 23:30
CME image M2 Solar Flare (R1 Minor Radio Blackout) with CME Tuesday, February 10, 2015 - 14:39
UPDATE: G2 (Moderate) Geomagnetic Storm Warning Expired Wednesday, January 21, 2015 - 16:23
UPDATED - R2 (Moderate) Radio Blackout Tuesday, January 13, 2015 - 11:27

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