RALEIGH — There does not seem to be much doubt that the Triangle should get set to get wet Tuesday, but before and after are toss-ups.

National Weather Service forecasters have posted an 80 percent chance of rain for Tuesday and Tuesday night, saying they expect warm air that is over the Gulf of Mexico to move into North Carolina by Tuesday morning. That will make for unstable air, which often spells rain.

“We’ll see a line of showers and maybe some thunderstorms coming through,” WTVD meteorologist Steve Stewart said in his online forecast for The News & Observer. Some of the storm activity “could be on the strong side,” he added.

It could be heavy rain in some places, but that will depend on local conditions.

The forecast calls for at least partly cloudy skies today and Wednesday, and the chance of rain will be 50-50 both days, the weather service said.

For the latest conditions and updated forecasts, go to our weather center.