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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 12, 2025 21:11:01

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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
G2 Warning G2 Warning Valid through 5/2100 UTC (5/1600 ET) Tuesday, December 5, 2017 - 14:55
NWS Winter Safety Campaign NWS Winter Safety Campaign Monday, December 4, 2017 - 14:57
G1 (Minor) Geomagnetic Storm Watch in Effect for 01 Jan Saturday, December 2, 2017 - 16:27
G1 (Minor) Geomagnetic Storm Watch Issued for 04 Dec 2017 Friday, December 1, 2017 - 22:00
Geospace delta B North America example product Announcing Geospace Model Version 1.5 Wednesday, November 8, 2017 - 21:34

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