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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
no data
S
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G
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Latest Observed
R
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S
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G
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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 --
G
no data
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R
no data
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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

Region 2422 Produces an M7 Flare (R2-Moderate)

GOES Xray Flux showing the M7/1b flare at 28/1458 UTC
Region 2422 Produces an M7 Flare (R2-Moderate)
published: Sunday, October 04, 2015 13:29 UTC

Region 2422 (S23W28) produced an impulsive M7/1b flare (R2-Moderate). The flare began at 28/1453 UTC, peaked at 28/1458 UTC and ended at 28/1503 UTC. Due to the lack of significant radio signatures and the impulsive nature of the flare we are not anticipating an associated Earth-directed coronal mass ejection (CME) from this event. SWPC forecasters will continue to monitor available satellite imagery and update our forecast as necessary.