The National Weather Service has upgraded the winter storm watch to a warning. Expected snow accumulation totals have also been increased. Here's the complete warning:
Heavy snow will result in very difficult travel conditions Friday. Snow is expected to develop Friday morning. The snow will become heavy at times from midday through late afternoon with snowfall rates of one to two inches per hour likely. The snow is expected to taper off Friday evening.
Storm total snowfall amounts are expected to reach six to nine inches during the day Friday with additional minor accumulations possible Friday evening. In addition to heavy snow, northeast winds will increase into the 15 to 25 mph range Friday afternoon and evening with gusts up to 30 mph. The winds may gust as high as 40 mph near the Lake Ontario shore. This will result in blowing and drifting snow, especially in open areas.
Travel conditions will deteriorate rapidly on Friday. Motorists should anticipate snow-covered roads and very difficult driving conditions. A winter storm warning is issued when severe winter weather is expected. If you will be traveling in the warning area you should choose an alternate route if possible, or you should use extreme caution if travel is unavoidable.