Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13863 32 15 45 2 2 10 0 0 1 31 5 0
13865 0 10 5 0 0 1 0 0 1 5 0 0
13866 8 9 5 0 0 1 0 0 1 7 1 0
13868 4 8 10 0 1 1 0 0 1 8 1 0
13869 92 73 85 31 15 50 4 4 25 84 32 11
13871 0 5 - 0 0 - 0 0 - 2 0 0
13872 0 73 85 0 15 50 0 4 25 53 22 10
13873 49 57 85 5 6 50 0 0 25 64 20 9
13874 - 14 20 - 1 5 - 0 1 17 3 0
13875 - 9 15 - 0 5 - 0 1 12 3 0
13876 - 14 45 - 1 10 - 0 1 30 5 0

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)