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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, April 20, 2024 01:34:39

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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) Geomagnetic Storm Watch Issued for 16 August

G1 (Minor) Geomagnetic Storm Watch Issued for 16 August
published: Wednesday, August 17, 2016 03:07 UTC

A G1 (Minor) geomagnetic storm watch has been issued for 16 August (UTC day) due to the expected arrival of a high speed solar wind stream from a coronal hole.