Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13836 - 15 5 - 1 1 - 0 1 10 1 0
13839 7 15 10 0 2 1 0 0 1 11 1 0
13841 49 57 75 5 6 40 0 0 10 60 17 4
13842 92 92 95 32 35 65 3 5 25 93 44 11
13843 49 57 60 5 6 20 0 0 1 55 10 1
13844 28 57 65 3 6 25 0 0 10 50 11 3
13845 11 9 5 3 0 1 0 0 1 8 1 0
13846 4 14 10 0 1 1 0 0 1 9 1 0
13847 4 10 5 0 0 1 0 0 1 6 0 0
13848 - 89 75 - 21 30 - 0 10 82 26 5

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)