Another weekend snowstorm: Winter weather advisory expanded; up to 5 inches of snow could fall by Saturday morning
Accumulating snow -- 2 to 5 inches depending where you are in southern Wisconsin -- is forecast to fall beginning Friday night into Saturday.
It's the third week in a row where snow has begun on a Friday and continued into Saturday, as southern Wisconsin remains in a weather pattern that has brought nearly constant light snowfall this week.
"All of southern Wisconsin is going to see some snow from this system tonight," J.J Wood, a meteorologist with the National Weather Service in Sullivan said Friday.
Wood said that forecasters expect the heaviest snow to fall across far southern Wisconsin, including portions of the Milwaukee metro area.
A winter weather advisory for 2 to 5 inches of snow begins at 6 p.m. on Friday and lasts until 9 a.m. Saturday for Waukesha, Racine, Kenosha, Jefferson, Rock and Walworth counties.
On Friday afternoon, the weather service added Dane, Dodge, Columbia and Green counties to the advisory.
Milwaukee, Ozaukee and Washington counties are forecast to receive 1 to 3 inches of snow by Saturday morning and are not included in the advisory, according to the weather service.
Wood said the the most intense periods of snow are expected to occur between 7 p.m. Friday and 3 a.m. on Saturday.
Areas along Lake Michigan are likely to see less snow as the relatively warmer waters of the lake influence what type of precipitation falls.
This snowfall is the latest that has occurred this week as the upper level of the atmosphere acts like a conveyor belt bringing one snowfall after another to the region.
The snow is being generated by moist air being pulled up from the Gulf of Mexico.
The pattern is not uncommon.
"We're in the middle of winter right now," Wood said. "This time of year can be very active, weather-wise."
Of the three rounds of snow that have come through the region this week, "tonight we are expecting the heaviest of the snowfall, especially in the far southeast where the advisory is in effect," Wood said.
The active weather pattern looks to continue into next week, Wood said.
"Right now, it doesn't look like any really strong storms moving through the region," he said. "But we do have some chances for light rain and light snow as we move into next week."
But there is still plenty of uncertainty in the long-range predictions, he said.
"Keep up with the forecast," Wood said.