Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13777 87 86 70 37 35 25 9 6 5 81 33 7
13780 86 95 80 28 56 30 0 9 5 87 38 5
13781 7 15 10 0 2 1 0 0 1 11 1 0
13782 19 22 20 1 2 1 0 0 1 20 1 0
13783 9 5 5 0 0 1 0 0 1 6 1 0
13784 87 86 70 37 35 30 9 6 10 81 34 8
13785 0 31 20 0 0 1 0 0 1 17 0 0
13786 55 27 20 0 3 5 0 0 1 34 3 0
13787 32 9 - 1 0 - 0 0 - 20 1 0
13788 27 33 20 3 4 5 0 0 1 27 4 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)