Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13986 4 8 0 0 1 0 0 0 0 4 0 0
13989 12 19 15 0 1 1 0 0 1 15 1 0
13990 95 31 30 0 5 5 0 2 1 52 3 1
13991 12 5 - 4 0 - 0 0 - 8 2 0
13992 35 64 55 5 11 15 0 1 1 51 10 1
13993 4 19 15 0 1 1 0 0 1 12 1 0
13994 26 9 10 2 0 1 0 0 1 15 1 0
13995 11 10 10 0 0 1 0 0 1 10 0 0
13996 13 58 60 0 10 20 0 2 5 44 10 2
13997 52 55 40 0 4 5 0 0 1 49 3 0
13998 36 57 45 5 6 10 0 0 1 46 7 0
13999 12 14 15 0 1 1 0 0 1 14 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)