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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, May 05, 2025 18:57:00

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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 Storm Watch Issued for 12 November 2016 Wednesday, November 9, 2016 - 20:22
G1 Watch for 8 Nov G1 (Minor) Watch In Effect for the 8 November UTC-day Monday, November 7, 2016 - 17:58
SWPC - Nation's Official Source for Space Weather Executive Order to Prepare Nation for Space Weather Events Wednesday, November 2, 2016 - 19:22
What Are Northern Lights? Wednesday, November 2, 2016 - 18:57
H-alpha and SDO imaes of Sun on 2 Nov 2016 Return to Quiet Conditions Ahead Wednesday, November 2, 2016 - 18:39

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