Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA ? C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13993 4 8 10 0 1 1 0 0 1 8 1 0
13996 61 58 35 5 10 15 0 0 5 51 10 2
13998 92 92 80 32 35 35 3 5 10 88 34 6
13999 - 14 10 - 1 1 - 0 1 12 1 0
14000 49 57 45 5 6 10 0 0 1 50 7 1
14002 11 9 - 3 0 - 0 0 - 10 2 0
14004 3 10 15 0 0 1 0 0 1 9 0 0
14005 12 5 - 4 0 - 0 0 - 8 2 0
14006 83 65 45 0 6 15 0 3 1 64 7 1
14007 - 22 20 - 2 5 - 0 1 21 4 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)