These maps show how much snow to expect in New England from the next storm

The snow will start on Wednesday afternoon and will impact evening journeys, said the weather service. The snow will change to rain from south to north between 6 p.m. and midnight. After midnight, street flooding may be possible due to rain. In southeastern New England, wind gusts could reach between 40 and 50 miles per hour.

Areas in the western part of Massachusetts could see up to 6 inches of snow, including Greenfield and Fitchburg. Areas in the middle part of the states, like Springfield and Worcester, could be up to 4 inches.

At most, about 2 inches of snow is expected in Boston, with even less accumulation likely in southeastern Massachusetts. Forecasters said in an online discussion that cities on the coast are more likely to see a mix of snow and rain.

Forecasters are warning that the conditions are likely to affect Wednesday’s evening run as well as Thursday’s morning run.

There is also a risk of snow and sleet in Massachusetts during the storm, with the western and central part of the state likely to experience the highest impact.

In Rhode Island, residents can also expect to see snow. While Burrillville and Foster could get about 4 inches of snow, Providence will likely only see about 2.

The storm will likely have only minor impacts in Massachusetts. Drivers are urged to exercise caution when driving in these conditions.

Meanwhile, New Hampshire and Maine could be hit again, with heavy amounts of snow expected on Wednesday. A winter storm watch is in effect for the vast majority of both states from Wednesday afternoon through Thursday evening.

The low pressure will bring a moderate to heavy snow streak late Wednesday afternoon and evening, the weather service said. Snow is likely to arrive during the evening drive in the southern regions.

A heavy accumulation of snow is likely, especially in the northern and interior regions, which could see up to a foot of snow in some areas. Mixed winter precipitation is expected in inland and coastal areas.

In parts of south-central, southwest, west-central, and western Maine, as well as parts of northern New Hampshire, heavy snowfall and mixed precipitation is possible. Total snow accumulations greater than 6 inches, as well as minor ice accumulations, are likely.

Wind gusts could reach 45 miles per hour along the coast and on higher ground, the weather service said. The gusts could potentially knock down tree branches.

In New Hampshire, the central part of the state is likely to receive the greatest snowfall, including North Conway, which could see up to 18 inches. Laconia and Plymouth could both reach a foot, while the southern part of the state should receive around 4 inches.

In Maine, Bangor and Rangeley could see up to a foot of snow, while Portland can see up to 6 inches and Bar Harbor between 3 and 4 inches.

Roads are likely to become slippery and treacherous, with snowfall rates of 1 to 2 inches per hour possible Wednesday afternoon and evening. Motorists are urged to exercise caution.

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Shannon Larson can be reached at shannon.larson@globe.com. Follow her on Twitter @shannonlarson98.