Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13893 6 5 - 0 0 - 0 0 - 5 0 0
13896 34 9 - 2 0 - 0 0 - 22 1 0
13898 41 22 20 4 2 5 0 0 1 28 4 0
13899 7 8 5 0 1 1 0 0 1 7 1 0
13900 14 22 20 1 2 5 0 0 1 19 3 0
13901 48 22 20 0 2 5 0 0 1 30 2 0
13902 4 8 5 0 1 1 0 0 1 6 1 0
13903 0 33 35 0 4 10 0 0 1 23 5 0
13904 19 22 20 1 2 5 0 0 1 20 3 0
13905 27 33 55 3 4 15 0 0 1 38 7 0
13906 - 33 55 - 4 15 - 0 1 44 9 1

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)