Forecast amounts for this weekend are all over the place. From around 0.20" to 1.25", depending upon the model. What worries me is the trend in the models towards taking out the cold front the day before MZ opens and replacing it with a return to Indian Summer, with days of strong South winds and record warmth for the opening week of MZ season.
One primary model (European) still has a big rain on Friday and a cold snap following, but the other two (Canadian, American) have shifted to the warm-spell scenario.