Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA ? C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? MCEVOL MCSTAT MCEVOL MCSTAT C+ M+ X+
13313 4 8 0 1 0 0 6 1 0
13315 63 65 0 6 0 3 64 3 1
13316 4 5 0 0 0 0 4 0 0
13317 12 5 4 0 0 0 8 2 0
13318 11 15 0 1 0 0 13 0 0
13319 - 64 - 11 - 1 64 11 1
13320 13 15 1 2 0 0 14 1 0
13321 13 15 0 1 0 0 14 0 0
13322 4 14 0 1 0 0 9 0 0
13323 53 77 0 18 0 1 65 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)