After four snow storms ... it/s Don Sutherland ... Donald Rosenfeld ... and WeatherT.
Under the ‘two-thirds’ rule … forecasters who have entered at least three forecasts are included in these interim standings.
Complete interim statistics table and charts at the Contest/s web site here.
All verified forecasts from all forecasters for all Winter '14 / '15 contest storms here.
SUMSQ errors for each contest snow storm are normalized with a 'Z-score' ... then averaged to compute the standings.
If a forecaster has issued forecasts for more than two-thirds of all snow storm contests ... then Z-scores from their 'best two-thirds' forecasts are used to calculate the Interim and Final standings. Same idea as dropping the lowest quiz score before computing the final grade