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National Oceanic and Atmospheric Administration

Saturday, December 16, 2017 07:22:06

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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
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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
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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 (X9.3 flare) Radio Blackout on 6 September at 1202 UTC

R3 on 6 Sep at 1202 UTC
R3 (X9.3 flare) Radio Blackout on 6 September at 1202 UTC
published: Thursday, September 07, 2017 21:59 UTC

 

An X9.3 flare (R3-Strong radio blackout) occurred on 6 September at 1202 UTC (0802 ET). This flare followed an X2.2 flare (R3 also) at 0910 UTC (0610 ET). The source region for both flares was Region 2673. Radio emissions suggest a coronal mass ejection (CME) may be associated with the X9.3 flare, but we await SOHO/LASCO coronagraph imagery for confirmation. We will update this post when we are able to analyze coronagraph imagery. Keep checking our SWPC webpage for the latest information and updates.