UPDATE, 1:30 p.m.: The National Weather Service has issued a lake effect snow warning that will begin at 7 tonight and remain in effect until 7 a.m. Tuesday. The warning includes Wyoming, Chautauqua, Cattaraugus and southern Erie counties.

Heavy lake effect snow expected with total snow accumulations of 8 to 16 inches in the most persistent lake snows. The greatest snow accumulations in Chautauqua and Cattaraugus counties will occur north of a line from Mayville to Cattaraugus to Machias, the Weather Service said.

Heavy snow will fall in relatively narrow bands. If traveling, be prepared for rapidly changing road conditions and visibilities, the Weather Service said.

Travel could be very difficult to impossible. The hazardous conditions could affect the Monday morning or evening commute and the morning commute on Tuesday.

Original story:

The National Weather Service has issued a winter weather advisory that includes Wyoming County.

The advisory, which is in effect until 5 p.m. Monday, also includes Chautauqua, Cattaraugus and southern Erie counties.

The Weather Service is forecasting accumulating snow across the advisory area, with total snow accumulations ranging from 7 to 14 inches across the higher terrain. Lower elevations may see 4 to 7 inches. Wind gusts as high as 35 mph are forecast.

Snow accumulation through the rest of the afternoon across the Southern Tier will reach an inch or two. An additional 3 to 5 inches can be expected tonight in the most persistent bands, the Weather Service said this morning in a forecast discussion.

On Monday, an additional 3 to 6 inches of snow are expected to accumulate across parts of the Southern Tier, especially for the higher terrain, the forecast discussion said.

Travel could be difficult at times, especially tonight and Monday across the higher terrain, the Weather Service said.

The hazardous conditions could affect the Monday morning and evening commutes.

Periods of snow will result in snow covered roads and limited visibilities. Slow down and use caution while driving, the Weather Service said.

Outside of the advisory area, a more wintry pattern will keep frequent accumulating snow showers in the forecast through at least mid-week, the Weather Service said in a forecast discussion today.

Most areas outside of the lake snow areas should be able to scrape up at least a coating, if not an

inch or so of accumulation. This could make some roadways slick for the Monday morning commute, the forecast discussion said.

Unlike recent days including this afternoon, temperatures on Monday afternoon will struggle to make it to freezing in most areas. This will further aggravate road conditions, the Weather Service said.

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