Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13868 4 8 5 0 1 1 0 0 1 6 1 0
13869 92 86 60 52 35 20 6 6 5 79 36 6
13872 40 54 15 4 16 1 1 2 1 36 7 1
13873 7 22 10 1 2 1 0 0 1 13 1 0
13874 64 64 50 13 11 15 1 1 1 59 13 1
13875 0 57 50 0 6 15 0 0 1 36 7 0
13876 50 73 70 12 15 45 0 4 20 64 24 8
13877 4 5 5 0 0 1 0 0 1 4 1 0
13878 70 76 80 15 15 55 1 2 25 75 28 9
13879 12 19 15 0 1 1 0 0 1 15 1 0
13880 - 5 10 - 0 1 - 0 1 7 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)