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M Flare forecasts are daily probabilistic forecasts, ranging from 1% (0.01) to 99% (0.99), of the likelihood of an M class x-ray flare occurring within the specified 24-hour day. The M1 x-ray flare threshold is 10-5 Watts / m2 x-ray flux in the 0.1 to 0.8 nm passband as measured by the NOAA GOES spacecraft. Forecast lead times range from one to three days. Verification results are provided on forecasts from July 1986 (the beginning of solar cycle 22) through December 2006.
Forecast Mean Error, RMS Error, and Linear Association Plot
Mean Forecast (event), Mean Forecast (no event), and Skill Plot
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