Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13922 - 58 50 - 10 10 - 2 1 54 10 1
13924 22 33 0 22 4 0 0 0 0 19 9 0
13925 4 5 - 0 0 - 0 0 - 4 0 0
13926 9 15 10 0 1 1 0 0 1 11 1 0
13927 39 76 10 0 15 1 0 2 1 42 5 1
13928 33 57 60 1 6 20 0 0 5 50 9 2
13929 - 8 5 - 1 1 - 0 1 7 1 1
13930 - 55 50 - 4 10 - 0 1 53 7 0
13931 - 9 10 - 0 1 - 0 1 10 1 0
13932 - 57 75 - 6 25 - 0 5 66 16 3

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)