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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, January 16, 2018 21:40:01

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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) to G2 (Moderate) Geomagnetic Storm conditions likely on 12-13 September 2015

G1 (Minor) to G2 (Moderate) Geomagnetic Storm conditions likely on 12-13 September 2015
published: Sunday, September 13, 2015 21:26 UTC

The continued influence of an equatorial, positive polarity coronal hole high speed stream is likely to produce periods of G1 (Minor) to G2 (Moderate) geomagnetic storms on 12 September through early on 13 September. Over the past 24 hours, this feature has produced geomagnetic storm activity up to G3 (Strong). Stay tuned for updates!