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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 18, 2024 08:40:25

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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 Upgraded to a G2 (Moderate) Watch

G1 (Minor) Geomagnetic Storm Watch Upgraded to a G2 (Moderate) Watch
published: Monday, October 17, 2016 16:12 UTC

UPDATE:  G1 (Minor) geomagnetic storm watch upgraded to a G2 (Moderate) geomagnetic storm watch for 17 October 2016 (UTC day) due to coronal hole high speed stream activity.