Lake Effect Snow Event - Lake Ontario - Dec 2013 Lewis County in New York, near the eastern edge of Lake Ontario Lake Effect Snow Watch Statement as of 9:33 PM EST on December 11, 2013 ... Lake effect snow watch remains in effect from Thursday morning through Friday afternoon... ... Lake effect snow warning is cancelled... The National Weather Service in Buffalo has cancelled the lake effect snow warning. * Locations... Lewis County. * Timing... Thursday morning through Friday afternoon. * Accumulations... snow potentially accumulating two feet Thursday through Friday in most persistent lake snows. * Impacts... travel may be difficult at times with snow covered roads and very poor visibility in bands of heavy lake effect snow. Precautionary/preparedness actions... A lake effect snow watch means that significant winter weather is possible in localized areas within the next 36 hours. Stay tuned to NOAA Weather Radio or your favorite source of weather information for the latest updates. Additional details can also be found at www.Weather.Gov/Buffalo. #weather