* WHAT...For the first Winter Storm Warning, heavy lake effect snow. Additional snow accumulations 5 to 10 inches in the most persistent bands. Winds gusting as high as 40 mph will produce blowing and drifting snow. For the second Winter Storm Warning, heavy snow expected. Total snow accumulations 12 to 18 inches, with up to two feet on the Tug Hill. * WHERE...The Eastern Lake Ontario Region. * WHEN...For the first Winter Storm Warning, until 7 PM EST this evening. For the second Winter Storm Warning, from 7 AM Sunday to 7 AM EST Tuesday. * IMPACTS...Travel will be very difficult. Areas of blowing snow will significantly reduce visibility. The hazardous conditions could impact the Friday evening and Monday and Tuesday commutes. * ADDITIONAL DETAILS...Lake effect snow is expected to develop behind the widespread snowfall Monday night. It could linger into mid-week.

* WHAT...For the Winter Storm Warning, heavy lake effect snow. Additional snow accumulations 5 to 10 inches in the most persistent bands. Winds gusting as high as 40 mph will produce blowing and drifting snow. For the Winter Storm Watch, heavy snow with significant accumulations likely. * WHERE...The Eastern Lake Ontario Region. The greatest additional accumulations from lake effect snow will fall across the Tug Hill Plateau. * WHEN...For the Winter Storm Warning, until 7 PM EST this evening. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Travel will be very difficult with deep snow cover on roads and very poor visibility. The hazardous conditions will impact the Friday evening commute.