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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 23, 2024 23:07:58

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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 Postedsort descending
SDO/AIA 335 imagery of the M4 flare from 23 Dec R1-Minor radio blackout occurred Wednesday, December 23, 2015 - 08:20
R1 (Minor) Radio Blackout Event on 28 Dec R1 (Minor) Radio Blackout Event on 28 Dec Monday, December 28, 2015 - 13:52
SOHO/LASCO-C3 coronagraph images of 28 Dec CME Coronal Mass Ejection on 28 December Monday, December 28, 2015 - 20:09
Image depicting arrival of the 28 December CME from the ACE satellite. 28 December CME Arrived, G1 (Minor) Storming Now Expected Monday, December 28, 2015 - 22:20
Shock Arrival at ACE Thursday, December 31, 2015 - 01:49

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