19 Oct 2024
22 Aug 2024
Solar peak - cycle 25
My favourite site for solar data is now showing the smoothed peak of cycle 25 as this October at 162.8. At one time they were showing a much smaller peak last November.
This suggests good F2 conditions this autumn and spring.
2 Jun 2024
When was/is solar maximum?
My usual site for solar data usually has a major update at the start of the month. Last time they were predicting the smoothed peak of solar cycle 25 was November 2023. It will be interesting to see this month's prediction. Sometimes we have a second peak.
See https://www.solen.info/solar/ .
1 Dec 2023
Solar data
It looks like the peak of solar cycle 25 may have been reached. November 2023 was the month shown as the predicted peak of this cycle. This has not changed for months on my favourite site for solar data.
We can expect conditions to be for several more years.
3 Feb 2023
Solar data
The latest information on solar cycle 25 is out. It still shows the peak as November this year, which is early.
13 Jan 2023
Solar cycle peak this year?
The 11 year solar cycle is an average with some cycles shorter than this and some longer.
I am most definitely not an expert on this area, but note my favourite site for solar data is still forecasting the peak in November this year. Whatever, solar conditions are good at the moment. 10m (my favourite HF band) is in great shape and could be for several years. Even in the depths of the last solar minimum some spectacular DX was spotted on FT8.
1 Jan 2023
Solar data
At the start of the month, there is usually an update of solar data at this site. It is usually my first port of call for solar data.
As late as yesterday, it was still showing the solar peak as November 2023, which seems early to me, although I am no solar expert!
1 Jun 2022
Higher than expected solar peak?
At the moment, we are on target for a solar peak higher than we expected.
This could cause higher disruption to telecoms infrastructure, but openings stronger on the higher HF bands and 6m. For radio amateurs, this could be good news.
14 May 2021
Cycle 25 predictions
We are now on the up-slopes towards the solar peak of cycle 25. I have not seen very recent forecasts but this forecast suggested it looks as if it will be very similar to the last peak i.e. quite low.
28 Nov 2020
Solar cycle 25 - latest predictions
It is some time since I saw predictions for the next solar cycle, but we have got off to a roaring start. I am no expert, but signs are promising. Who would have expected solar flux and sunspots to be this good?
The climb up from solar minimum has been dramatic and fast with sunspot numbers and solar flux levels much greater than we all expected.
We should deal in averages and this could just be a blip, but I hope the next solar cycle is a decent one. No doubt the latest NOAA and NASA forecasts are worth a look.
29 Oct 2020
Cycle 25 forecasts?
It is some time since I saw a forecast for the magnitude of the next sunspot maximum.
We certainly seem to be on the up-slopes after the solar minimum. If there have been any recent forecasts, I have missed them! Please let me know if you know of any recent ones.
The last forecast I saw was expecting the next peak to be broadly similar to the last one. Compared with the huge peaks after WW2 (e.g. 1957), this was a pretty poor one, although 10m was very good at times. I remember a peak (in the 1980s?) when ZSs were coming in well on 6m SSB with just a wire dipole. It would be good to see that again.
See https://www.nasa.gov/feature/goddard/2020/what-will-solar-cycle-25-look-like-sun-prediction-model
16 Sept 2020
Solar Cycle 25
According to spaceweather.com, solar cycle 25 has started. At the moment it is hard to believe as we have had no sunspots for several weeks.
The latest NASA/NOAA predictions show the next cycle just a tiny bit better than the last one. They are forecasting a weak cycle and peak.
See https://www.weather.gov/news/201509-solar-cycle
See also https://blogs.nasa.gov/solarcycle25/
16 Aug 2020
Predicting the size of the next solar maximum
A summary of recent predictions is available at the site below made by K9LA. I expect there will be revisions as cycle 25 really starts to motor.
See http://k9la.us/Aug20_Cycle_25_Predictions.pdf
5 Aug 2020
Solar Cycle 25
29 Apr 2020
Cycle 25 spots
See https://spaceweather.com/
22 Jan 2020
17 Dec 2019
New forecast for solar cycle 25
See https://www.swpc.noaa.gov/news/solar-cycle-25-forecast-update
3 Nov 2019
The next solar peak (cycle 25)
Compared with several years ago the solar peaks are much smaller, but at least 10m was pretty good for several years around even the last peak.
See https://solen.info/solar/polarfields/polar.html
15 Jun 2019
Solar cycle 25 predictions
See https://earthsky.org/space/solar-cycle-25-likely-weak-according-to-predictions
10 Nov 2018
Sunspot cycle 25 start?
See https://arxiv.org/abs/1808.04868