Chance of wintry weather in central NC slowly develops
Posted January 23, 2011 10:06 a.m. EST
Updated January 23, 2011 12:07 p.m. EST
Raleigh, N.C. — A slowly approaching weather system is forecast to give the Triangle mostly rain on Tuesday, followed by a chance at some snow Wednesday, WRAL meteorologist Mike Moss said Sunday.
First, Sunday will be mostly sunny but chilly, with a high in the low to mid 40s. Skies will grow cloudy Monday, but the chance of precipitation remains very low.
"Most of us are just going to be dry, but there could be an isolated flurry or sprinkle in two spots," Moss said.
Two low-pressure systems will affect North Carolina on Tuesday. The first will pass along the coast during the morning, and then a second system will sweep in from the Gulf of Mexico later in the day.
"As all of these come our direction, a little more warm air will roll into central North Carolina and allow a lot of that precipitation to be in the form of rain as we get into later Tuesday, Tuesday night and early Wednesday," Moss said.
A high in the upper 40s Tuesday will give way to a low hanging around the freezing mark Tuesday night. On Wednesday, temperatures will be lower – a high in the upper 30s and low in upper 20s.
"As the low starts to move away Wednesday ... we have a chance of colder air leaving at least parts of our region, around the Triangle and north and west especially, with some snow," Moss said.
He cautioned Sunday that it's too early to predict with any certainty how much snow will fall and precisely what areas might get snow.
"We don't yet whether we'll have enough snow around here to do any slipping and sliding," Moss said. "There is a possibility we'll get some accumulating snow over parts of our viewing area."
The state Department of Transportation delayed plans to lay anti-icing brine on roads this weekend as the forecast for wintry weather got pushed back. Rain would wash away the brine before it would become effective.
Any snow or rain will taper off throughout Wednesday and end by the evening.
"Once that pulls out, it's pretty quiet to end the week as we head back to 50 degrees," Moss said.