Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA ? C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13927 0 5 5 0 0 1 0 0 1 3 0 0
13928 93 57 30 15 6 5 0 0 1 60 9 0
13929 - 9 20 - 0 5 - 0 1 15 3 0
13932 97 77 65 57 18 25 0 1 5 80 33 2
13933 - 77 55 - 18 15 - 1 1 66 17 1
13935 23 8 5 4 1 1 0 0 1 12 2 0
13936 92 92 80 32 35 25 3 5 5 88 31 4
13937 4 8 5 0 1 1 0 0 1 6 1 0
13938 84 77 55 30 18 15 0 1 1 72 21 1
13939 4 8 20 0 1 5 0 0 1 11 2 0
13940 - 5 - - 0 - - 0 - 5 0 0
13941 - 15 10 - 1 1 - 0 1 13 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)