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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, April 20, 2024 07:01:11

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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

S1 Radiation Storm Warning extended

S1 Warning/D-Rap model chart
S1 Radiation Storm Warning extended
published: Friday, September 15, 2017 03:38 UTC

The S1 - Minor Solar Radiation Storm Warning that was originally issued on 10 Sep has been extended through 2359 UTC on 14 September.

Stay tuned here for updates.