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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, November 23, 2017 18:30:25

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NOAA Scales mini

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Space Weather Conditions
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
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 in Progress, G2 Possible

G1 (Minor) Geomagnetic Storm in Progress, G2 Possible
published: Thursday, April 16, 2015 15:43 UTC

G1 (Minor) geomagnetic storms are in progress as expected due to the onset of a recurrent coronal hole high speed wind stream. G2 (Moderate) levels are possible and a warning has been issued valid until 1900 UTC (3:00 pm ET) on April 15th. Stay tuned for updates as this activity progresses.