Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13801 9 5 0 0 0 0 0 0 0 5 0 0
13803 9 5 5 0 0 1 0 0 1 6 1 0
13804 9 5 - 0 0 - 0 0 - 7 0 0
13806 92 92 75 32 35 25 3 5 5 86 31 4
13807 70 76 85 15 15 35 1 2 5 77 22 3
13808 8 15 15 1 2 1 0 0 1 13 1 0
13810 8 9 5 0 0 1 0 0 1 7 1 0
13811 13 15 20 1 2 5 0 0 1 16 2 0
13812 - 9 - - 0 - - 0 - 9 0 0
13813 - 77 90 - 18 45 - 1 20 84 32 11

SolarMonitor's flare prediction system's probabilities are calculated using the NOAA Space Weather Predicion Centre's McIntosh classifications. There are two methods, MCSTAT and MCEVOL, that use sunspot-group McIntosh classifications and Poisson statistics to calculate flaring probabilities valid for a 24-hr period starting at 00:00 UTC. The flaring probabilities are calculated using historical data from solar cycles 23 and 24 (1996-2019).

MCSTAT (McIntosh Statistics): Uses the point-in-time McIntosh classification to calculate Poisson flaring probabilities. Details about the method [1] and forecast verification testing [2] can be found in the following papers:

[1] Gallagher, P. T., Moon, Y.-J., Wang, H., Solar Physics, 209, 171, (2002)
[2] Bloomfield et al., 2012, The Astrophysical Journal Letters, 747, L41

MCEVOL (McIntosh Evolution): Uses a combination of previous and current McIntosh classification to calculate Poisson flaring probabilities. Details about the method and flaring rate statistics can be found in the following:

[1] McCloskey, A.E., Gallagher, P.T. & Bloomfield, D.S., Solar Physics, 291, 1711, (2016)