Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13799 33 31 20 4 5 1 0 2 1 28 3 1
13800 86 35 0 63 3 0 0 0 0 41 22 0
13801 19 22 15 1 2 1 0 0 1 19 1 0
13803 2 22 10 0 2 1 0 0 1 12 1 0
13804 4 8 5 0 1 1 0 0 1 6 1 0
13806 95 92 70 67 35 30 19 5 5 86 44 10
13807 0 76 80 0 15 40 0 2 10 52 18 4
13808 41 22 20 4 2 1 0 0 1 28 2 0
13809 - 8 5 - 1 1 - 0 1 7 1 1
13810 - 9 10 - 0 1 - 0 1 10 1 0
13811 - 8 20 - 1 1 - 0 1 14 1 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)