Raleigh, N.C. — A warm front will lift north over the area Wednesday evening, rising over an approaching cold front that is bearing down on the Triangle.

As the warm and unstable air spreads into central North Carolina, a line of showers is expected to develop along the cold front as it moves east across the area early Thursday.

"Cold air really begins to plow in as we head toward Friday," WRAL Chief Meteorologist Greg Fishel said.

Isolated thunderstorms are also possible Thursday, especially south of U.S. Highway 64. Some of the stronger storms could produce high winds with gusts up to 30 to 40 mph.

The high temperature was 52 degrees Wednesday, and the low was 39.

A system currently over the Pacific Ocean could bring light rain or snow into the Triangle Sunday, but it is too early to tell for sure, Fishel said.

"We are still going with the basic idea of light rain turning into light snow before ending," Fishel said.

If snow falls, it would likely occur during the day Sunday.