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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 18, 2024 06:33:57

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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

G2 (Moderate) Geomagnetic Storm Conditions Observed

aurora ovation model output
G2 (Moderate) Geomagnetic Storm Conditions Observed
published: Tuesday, March 20, 2018 06:09 UTC

G2 (Moderate) geomagnetic storm levels were observed at 18/2159 UTC due to persistent coronal hole high speed stream activity.