Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13756 4 8 5 0 1 1 0 0 1 6 1 0
13757 4 5 - 0 0 - 0 0 - 4 0 0
13762 85 95 90 18 56 60 0 9 10 90 45 6
13763 13 15 15 1 2 1 0 0 1 14 1 0
13764 4 8 10 0 1 1 0 0 1 8 1 0
13765 11 27 70 0 3 25 0 0 5 36 9 2
13766 16 27 60 4 3 20 0 0 5 35 9 2
13767 22 27 40 2 3 5 0 0 1 30 3 0
13768 2 9 45 0 0 10 0 0 1 19 3 0
13769 4 8 10 0 1 1 0 0 1 8 1 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)