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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 26, 2018 17:14:21

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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

No CME Expected from R2-Moderate Flare

Sunspot Region 2403
No CME Expected from R2-Moderate Flare
published: Wednesday, August 26, 2015 00:53 UTC

Region 2403 (S15W18, Fkc/beta-gamma-delta) produced an M5/1B (NOAA Scale R2-Moderate) solar flare at 24/0733Z (24/01:33am MDT). After analyzing available satellite imagery SWPC forecasters have determined that there is no coronal mass ejection (CME) associated with this event and there are no anticipated impacts to the Earth's magnetosphere. As stated earlier this flare was the largest that we have seen in some time but was absent of typical indicators of CME activity. We will continue to monitor Region 2403 for further flare activity and any potential impacts.