As the storm approaches conditions will be cold enough initially for snow but it will pull in some mild air that is expected to change the precipitation to rain for some.
For anyone driving overnight Tuesday and during the Wednesday morning commute hours, be prepared for icy conditions and potential snow.
This latest system will hit us with 1-3 inches of snow before a switchover to sleet and rain across parts of Mass., Rhode ...
We enter day three under the influence of an atmospheric river. Northwest Montana will see the most snowfall today. Helena and Great Falls still have more accumulation to come through tomorrow.
Road conditions improve Tuesday afternoon, as snow showers gradually diminish. Expect a mostly cloudy sky, with highs in the 20s. Tonight will be dry with a few passing clouds, but it turns very cold.
Kevin Skarupa has a look at the latest forecast update.