[CQ-Contest] NOAA's official updated Solar Cycle 25 prediction

[donovanf at starpower.net]

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