The first reports of ice in the form of small hail and ice pellets were reported at the Buffalo Airport at 12:14 pm, the temperature at the time was after which it fell to by 1:00 pm and by 1:38 pm. Then at 1:51 pm, the first rain-snow mix was reported, and by 2:09 pm the rain had changed over entirely to snow, with the temperature dropping to by 2:13 pm. This prompted the NWS in Buffalo to issue a LES warning at 2:36 pm for Niagara, Orleans, Northern Erie and Genesee counties. The warning, which would become effective as of 8:00 pm through to 6:00 am, called for one to three inches of snow, with possible accumulations of up to well inland; the warning also made specific mention of possible tree damage and power outages.