Solar flares on February 18, 2026
The most powerful solar flare in 24 hours
C2.2 (normal) flare - February 18 at 11:42 AM
Solar activity index
Value as of the end of the day on February 18, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 17, 2026 to February 18, 2026
Time zone — UTC-09 (Anchorage)
List of solar flares for February 18, 2026
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 21:52 | 22:18 | 22:24 | — |
| C2.2 | 11:17 | 11:42 | 11:58 | — |