A nor'easter moving along the American seaboard will intensify today says CBC meteorologist Peter Coade, bringing up to 20 cm of snow to southeastern New Brunswick, Nova Scotia and Prince Edward Island.

"I expect that some communities along the Fundy coast of New Brunswick and along the south shore of Nova Scotia will see the snow start as or become mixed with rain at the onset," Coade said.

Environment Canada has issued a snowfall warning for Moncton and southeastern New Brunswick, Fundy National Park, Kent County and Kouchibouguac National Park.

"Snow, heavy at times, will start this afternoon over southeastern regions," the statement says.

"Total snowfall will range from 15 to 20 cm with significant accumulations continuing this evening and ending after midnight."

Coade says skies will clear on Saturday and any snow that falls today will likely melt early next week.

"It looks like the first week of February will be quite mild. This mild air will move in on Sunday so we can expect to see some showers or flurries as the leading edge of this milder air arrives but then quite mild temperatures with fair weather for much of the new week."

New Brunswick forecast

Northern New Brunswick

Friday: It will become cloudy with flurries or periods of snow developing later in the afternoon with winds in the east gusting to 40 km/h and a high of 0 C.

Friday night: It will be cloudy and windy with 2 to 5 cm of snow, winds from the northeast gusting to 50 km/h and a low of –10 C.

Saturday: A mix of sun and cloud is expected with a high of –2 C.

Fredericton and area

Friday: Light snow will develop late this morning bringing 2 to 3 cm along with winds from the north at 20 km/h and a high of 0 C.

Friday night: Expect another 2 to 5 cm of snow and a low near –8 C.

Saturday: A mix of sun and cloud on the way with a high near 0 C.

Southern New Brunswick

Friday: There is a snowfall warning in effect for the southeast where 2 to 5 cm is expected to begin this afternoon with winds from the northeast gusting to 40 km/h. Snow mixed with rain is expected along the coast with a high of 2 C.

Friday night: It will be windy with snow heavy at times in the east. Expect 2 to 5 cm except in the east where up to 15 cm is expected overnight with a low of –6 C.

Saturday: A mix of sun and cloud except in the east where snow will continue, heavy at times, in the morning. Skies will clear in the afternoon and winds will diminish with a high of 0 C.