Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13834 9 5 - 0 0 - 0 0 - 7 0 0
13835 43 14 - 5 1 - 0 0 - 28 3 0
13836 52 55 10 0 4 1 0 0 1 39 2 0
13839 4 8 15 0 1 1 0 0 1 9 1 0
13841 36 57 70 5 6 30 0 0 10 55 14 3
13842 66 92 95 7 35 60 0 5 25 84 34 10
13843 59 57 60 0 6 20 0 0 1 59 9 0
13844 8 27 55 2 3 15 0 0 10 30 6 3
13845 - 14 10 - 1 1 - 0 1 12 1 0
13846 - 9 15 - 0 1 - 0 1 12 1 0
13847 - 10 5 - 0 1 - 0 1 8 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)