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C4.0 solar flare
Our Sun surprised us today! After a period of higher solar activity we are currently in a period with fewer sunspots and strong solar flares seemed very unlikely today. However, our Sun woke up this afternoon and produced a C4.0 solar flare peaked today at 14:37 UTC. A C4 solar flare doesn't sound so spectacular but there are two reasons why this solar flare deserves your attention.
Latest news
Thursday, 9 May 2024
Severe G4 geomagnetic storm watch
Wednesday, 8 May 2024
Sunspot region 3664, major flares and CMEs!
Monday, 6 May 2024
X4.5 solar flare
Latest forum messages
[CME] AR 13664, flare flurry, CMEs galore, 2024-05-08/09 127Unproven theories 393Is there any truth to this "Internet/Electrical Grid Apocalypse"? 89AR3664 584Sporadic E and Flare activity 27
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Space weather facts
| Last X-flare | 2024/05/09 | X1.1 |
| Last M-flare | 2024/05/09 | M3.7 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 167.9 +77.7 |