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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 18, 2024 23:23:51

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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

G1 (Minor) Storm Warning In Effect Until 18/1200 UTC

Aurora Ovation Model
G1 (Minor) Storm Warning In Effect Until 18/1200 UTC
published: Saturday, August 19, 2017 03:30 UTC

G1 (Minor) storm conditions were reached on 17 Aug. A G1 Watch remains in effect for 18 Aug and a G1 Warning is valid until 18/1200 UTC.