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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, December 16, 2017 07:17:58

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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

Continuing Residual Magnetic Activity Following St. Patrick's Day G4 Storm

Continuing Residual Magnetic Activity Following St. Patrick's Day G4 Storm
published: Friday, March 20, 2015 12:48 UTC

While the magnetic response from the CME arrival on 17 March has no subsided, residual magnetic activity remains - in part to the presence of elevated solar wind velocities from a coronal hole high speed stream. Conditions as high as G1 (minor) could persist through today (19 Mar).