Solar flares on August 11, 2001
The most powerful solar flare in 24 hours
C2.8 (normal) flare - August 11 at 12:40 AM
Solar activity index
Value as of the end of the day on August 11, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 10, 2001 to August 11, 2001
Time zone — UTC-06 (Lethbridge) — summer time
List of solar flares for August 11, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 22:38 | 22:41 | 22:44 | 9574 |
| C1.51 | 18:05 | 18:11 | 18:13 | — |
| C2.2 | 15:22 | 15:28 | 15:32 | — |
| C1.3 | 06:23 | 06:27 | 06:33 | — |
| C1.2 | 05:35 | 05:49 | 06:00 | 9563 |
| C1.1 | 04:04 | 04:09 | 04:13 | — |
| C1.0 | 03:49 | 03:54 | 03:58 | — |
| C1.7 | 02:58 | 03:04 | 03:08 | — |
| C2.8 | 22:17 | 00:40 | 02:09 | — |
Diary
- 04.08.2026 The magnetic storm has ended
- 02.08.2026 The first magnetic storm of August has begun
- 02.08.2026 A moderate magnetic storm is expected today, Sunday.