Flare Probabilities [%] (00:00 UTC +24H) ?
NOAA C+ M+ X+ Mean ?
MCEVOL ? MCSTAT ? SWPC ? MCEVOL MCSTAT SWPC MCEVOL MCSTAT SWPC C+ M+ X+
13738 95 95 90 56 56 55 9 9 25 93 56 15
13743 49 57 55 5 6 15 0 0 1 54 9 1
13744 32 15 30 2 2 5 0 0 1 26 3 0
13745 0 15 15 0 2 1 0 0 1 10 1 0
13747 4 8 5 0 1 1 0 0 1 6 1 0
13748 2 9 15 0 0 1 0 0 1 9 0 0
13749 11 22 5 1 2 1 0 0 1 13 2 0
13750 11 22 25 1 2 5 0 0 1 19 3 0
13751 81 44 80 0 4 30 0 0 5 68 11 2
13752 7 8 5 0 1 1 0 0 1 7 1 0
13753 - 33 50 - 4 10 - 0 1 42 7 1
13754 - 14 25 - 1 5 - 0 1 20 3 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)