A small snowstorm is expected to roll in just as the morning rush hour starts on Wednesday.

The National Weather Service issued a winter weather advisory for Hamilton and Wenham through 3 p.m. because 2-4 inches of snow is expected.

The storm could actually end up being the biggest storm of the year in the two towns, where only 3-4 inches of snow fells on Dec. 30 in the first storm of the winter.

“The snow will continue through mid morning, but probably change to rain and sleet by late morning or early afternoon before tapering off,” the weather service said in issuing its advisory.

Untreated roads are expected to be slippery on Wednesday morning with reduced visibility too.