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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, April 20, 2024 12:39:50

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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

sort ascending Originally Posted
US-TEC Model Upgrade US-TEC Model Upgrade Wednesday, August 17, 2016 - 17:56
UPDATED - R2 (Moderate) Radio Blackout Tuesday, January 13, 2015 - 11:27
Update: S1-S2 Warning Extended to 8 September/2359 UTC Tuesday, September 5, 2017 - 15:10
UPDATE: S1 Solar Radiation Storm In Progress But Trending Down Thursday, October 29, 2015 - 14:28
Update: R1 and R2 radio blackouts Thursday, October 2, 2014 - 20:28

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