4 maps predicting the most, least, and expected snowfall from the nor’easter

Southeastern Massachusetts could see up to 2 feet of snow, according to the National Weather Service.

Snow Plow Boston
A pedestrian walks past a plow on Charles Street Tuesday as snow falls in Boston. Jessica Rinaldi / The Boston Globe

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Forecasters say Massachusetts will see heavy snow and blizzard conditions Tuesday as a third nor’easter pummels Southern New England.

In an updated forecast Tuesday morning, the National Weather Service said a Winter Storm Warning was in effect for all of Southern New England, with Blizzard Warnings for Cape Cod and much of coastal Massachusetts. The southeastern part of the state could see up to 2 feet of snow, according to the service.

The expected snowfall for Boston is 17 inches, and there’s a 20 percent chance the city gets more than 18 inches, the service said.

Here are the service’s expected, high-end, and low-end snowfall maps predicting accumulation in Massachusetts:

Expected Snowfall:

High-End Snowfall Amount:

Low-End Snowfall Amount: