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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, December 11, 2025 15:43:59

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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
Aurora oval forecast 5 Jan 2017 G1-Minor geomagnetic Storm Warning Thursday, January 5, 2017 - 23:48
G1 Watch for 5 and 6 January G1 Watch Remains in Effect for 5 and 6 January Thursday, January 5, 2017 - 21:44
G1 Watch for 4-5 Jan due to CH HSS G1 WATCH for 4 and 5 January, 2017 Monday, January 2, 2017 - 19:59
G1 (Minor) Geomagnetic Storm Watch Issued for 31 Jan - 01 Feb Wednesday, December 28, 2016 - 21:19
Aurora Ovation Model G1 (Minor) Storm Warning In Effect Until 18/1200 UTC Monday, December 26, 2016 - 04:56

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