Early this month SWPC published their official updated prediction of Solar Cycle 25 in a new user-interactive graph format. Their updated prediction is based on the results of NOAA's Solar Cycle 25 Prediction Panel. www.swpc.noaa.gov/products/solar-cycle-progression SWPC f orecasts a solar maximum between 105 and 125 with the peak occurring between November 2024 and March 2026. There is broad consensus that Solar Minimum is ongoing this year -- or may have already occurred -- and that Cycle 25 will have no major change in the level of solar activity compared to Cycle 24. For many years SWPC's solar cycle predictions have used the Royal Observatory of Belgium's International Sunspot Number. SWPC's official solar cycle prediction now uses the SWPC sunspot number. The International Sunspot Number is typically about one third lower than the SWPC sunspot number. While this is SWPC's official Cycle 25 prediction, its important to note there is still divergence among various forecasting methods and members of the space weather forecasting community. Most forecasts and forecasters agree that the Cycle 25 is likely to be within plus or minus 20 percent of Cycle 24 and is likely to occur between 2024 and 2027. link.springer.com/article/10.1007/s41116-020-0022-z/tables/2 73 Frank W3LPL _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
