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National Oceanic and Atmospheric Administration

Sunday, October 22, 2017 19:05:30

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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

R3 (X1.3 Flare) Radio Blackout Observed on 7 Sep at 1436 UTC

R3 (X1.3 Flare) Radio Blackout Observed on 7 Sep at 1436 UTC
published: Friday, September 08, 2017 21:29 UTC

An X1.3 / 2b flare (R3-Strong radio blackout) occurred on 07 September at 1436 UTC. The source region for this flare was Region 2673. A narrow, slow-moving CME was observed with this event, but was determined to not have an Earth-directed component. This region continues to produce significant flare activity, so keep checking our SWPC webpage for the latest information and updates.