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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 17, 2025 10:29:52

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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.

News Archive

Originally Posted
G1 (Minor) storming Watch and Warning out for 14-15 Dec G1 (Minor) Geomagnetic Storming Conditions Continue Monday, December 14, 2015 - 19:04
G1 (Minor) Geomagnetic Storms Likely on 16 December 2015 Sunday, December 13, 2015 - 22:28
SDO/AIA composite image G1 geomagnetic storm conditions Thursday, December 10, 2015 - 12:35
SDO/AIA 211 imagery G1 Watch issued for next coronal hole Tuesday, December 8, 2015 - 13:29
Ovation-Prime Model depiction of aurora oval G1 (Minor) Geomagnetic Storming Observed Sunday, December 6, 2015 - 12:48

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