Calibrations from doy 73, 1983 were used to calibrate: doy 73 doy 74 doy 75 doy 76 Calibrations from doy 77, 1983 were used to calibrate: doy 77 doy 78 doy 79 doy 80 There were changes between doy 74 and 75 in the northeast. Cathy (9/13/95)