Strongest X-Ray Solar Flare in New Cycle 25! A Class M4.4 Flare on 29 Nov 2020
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At 13:11 UTC, 29-Nov-2020, the largest X-ray flare so far in new Sunspot Cycle 25 peaked at M4.4 (NOAA scale). The flare was not Earth-facing; the active sunspot region hasn’t rotated into Earth view. If it had erupted while the sunspot group faced Earth, it likely would have measured as an X-class flare. As this sunspot region rotates into view, we may see many more flares in the coming days.
This is exciting! Why? Some scientists are speculating that a rapid start to Cycle 25 will result in one of the most active cycles in recent solar cycle history. Which could mean that we could work the world with a wet noodle, on the 10-Meter band!
With a rapid increase in sunspot activity as we ramp up in Sunspot Cycle 25, the solar flux (the 10.7-cm Radio Flux measurement) will be increasing. That means, generally, we will see better HF conditions on the frequencies above 7 MHz on through 30 MHz or higher.
The bad news is that larger flares cause radio blackout events, because the ionospheric D-Layer absorption increases for the duration of an Earth-facing solar X-ray flare. During this M4.4 X-ray flare, we had a level R1 event, causing some shortwave blackout regions.
After the way much of 2020 has been we need some good news. Here’s hoping some big numbers is one of several positives for January.
Does a colleague use a DATRON TW 7000 radio?
Thank you for your attention!