Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13806 39 55 0 0 4 0 15 0 0 32 1 5
13811 18 44 55 0 4 15 0 0 1 39 6 0
13813 55 44 25 0 4 5 0 0 1 41 3 0
13814 0 57 75 0 5 35 0 0 10 44 13 3
13815 10 8 10 1 1 1 0 0 1 9 1 0
13816 24 22 25 0 2 5 0 0 1 24 2 0
13818 11 9 - 3 0 - 0 0 - 10 2 0
13819 - 31 5 - 0 1 - 0 1 18 0 0
13820 4 8 5 0 1 1 0 0 1 6 1 0
13821 16 27 20 4 3 1 0 0 1 21 3 0
13822 - 33 50 - 4 20 - 0 5 42 12 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)