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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, April 23, 2021 08:23:10

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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
G2 Watch for 25 April, 2021 G2 (Moderate) Storm Watch for the 25 April UTC-day Thursday, April 22, 2021 - 19:15
Just In Time... Tuesday, April 20, 2021 - 01:25
NWS Spring Weather Safety Campaign NWS Spring Weather Safety Campaign is on! Tuesday, March 2, 2021 - 00:28
Image advertising the Space Weather Workshop Virtual 2021 Space Weather Workshop! April 20-22, 2021 Wednesday, February 24, 2021 - 18:01
G1 Watch 23-24 Feb, 2021 G1 (Minor) Geomagnetic Storm Watch for 23-24 February, 2021 Tuesday, February 23, 2021 - 01:02

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