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Winter weather advisory in effect in Niagara Frontier until 5 a.m.

A winter weather advisory from the National Weather Service remains in effect until 5 a.m. Sunday for most of the Niagara Frontier as the first showing of a snowy double feature passes through the region. It covers Erie, Niagara, Orleans, Genesee and Wyoming counties.

By the time the storm winds down early Sunday, 1 to 3 inches of snow is expected to have fallen in metro Buffalo, with up to 2 to 4 inches in the higher terrain of the snow belt in the Southtowns and Wyoming County, said Kirk Apffel, a meteorologist with the weather service at the Buffalo Niagara International Airport. The late-season snowstorm is the result of a low pressure system moving into the area through northern Pennsylvania, he said.

Temperatures will drop to a low of 22 degrees overnight before rising to a high near 32 degrees Sunday.

The second snowstorm, also caused by a low pressure system moving into the area from Ohio and Pennsylvania, will start to ramp up shortly before sunset on Sunday. It will continue through the night before tapering off Monday morning, Apffel said. The second storm could bring slightly higher accumulations of up to 2 to 4 inches in metro Buffalo and 3 to 5 inches in southern Erie County.

While snowstorms this time of year aren’t common, the average monthly snowfall total for April is 2.7 inches, according to the weather service.