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National Oceanic and Atmospheric Administration

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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S
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G
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Latest Observed
R
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S
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
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no data
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R
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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

C1 Flare and Associated CME of 12 February, 2018

12 February, 2018 C1 Flare
C1 Flare and Associated CME of 12 February, 2018
published: Wednesday, February 14, 2018 12:22 UTC

A C1 solar flare occurred at 0135 UTC (8:35pm ET) on 12 February 2018, from Region 2699. An asymmetric halo CME was observed in LASCO/SOHO imagery in association with this flare. SWPC forecasters are busy analyzing the imagery and studying model forecast results. Initial analysis indicates the CME likely has an Earth-directed component, with a preliminary arrival of 15 February. Please keep checking our SWPC webpage - the nation's official source of forecasts, watches and warnings - for the latest updates and expectations regarding this event.