Storm boston march 21 2018
Across the South Coast, the storm will be underway earlier this afternoon. A storm system to our south is walloping the mid-Atlantic with a very heavy March snowstorm.
The track of the storm is not perfect for southern areas to receive a lot of snow, but it's close. The other piece of this weather system is that it's not a typically concentrated low pressure area; rather, it's a bit strung out. The elongated structure of this particular storm means that the precipitation will also be elongated, but have a sharp cutoff on the western side of it. In other words, it's another storm where you can go from a foot to a few inches in a relatively short distance, likely from southwest of Boston to southern New Hampshire.
The high sun angle this time of the year will prevent any of that snow from really sticking to roads so I don't consider it a major travel issue. It won't be until tonight when the sun goes down and the precipitation becomes more intense that we start to see the snow accumulate on roadways in addition to the other surfaces.
In the middle of the night, the snow will come down quite hard, perhaps even up to 2 inches per hour in a few spots. When you get up tomorrow morning, expect most of what is on the accumulation maps to have fallen, although there could be an inch to 3 inches before 10 a.
Coastal flooding will be minor to borderline moderate. Power outages are going to happen, but since there will be less wind inland and not as much snow as some previous storms they should be more scattered. Nonetheless, I would plan on losing power from Worcester to the coastline as these things can surprise us.
The weather improves slowly Thursday afternoon. Friday remains cloudy with a few snow showers, but nothing more. The weekend brings a cold and dry air mass to the area. Steadier snow mix Cape overspreading the area after 2 p. Arriving in Boston near or after the evening commute. The snow will wind down Thursday morning. Each part of southern New England will be impacted differently. There are going to be pockets of heavier snow in bands from roughly Worcester to Boston and points southwest.
The placement of these pockets is difficult to predict, but know that when you look at the general overall accumulation map, some areas are going to exceed the highest threshold. For a storm about to get underway, I think most forecasters would admit a lower-than-average confidence on snow totals. For planning purposes, although there may be some snow and even mixed precipitation today, most of the storm occurs from about 7 p.
After that there will be lingering snow, but not much accumulation. Across the South Coast, the storm will be underway earlier this afternoon. A storm system to our south is walloping the mid-Atlantic with a very heavy March snowstorm.
The track of the storm is not perfect for southern areas to receive a lot of snow, but it's close. The other piece of this weather system is that it's not a typically concentrated low pressure area; rather, it's a bit strung out.
The elongated structure of this particular storm means that the precipitation will also be elongated, but have a sharp cutoff on the western side of it. In other words, it's another storm where you can go from a foot to a few inches in a relatively short distance, likely from southwest of Boston to southern New Hampshire. The high sun angle this time of the year will prevent any of that snow from really sticking to roads so I don't consider it a major travel issue.
It won't be until tonight when the sun goes down and the precipitation becomes more intense that we start to see the snow accumulate on roadways in addition to the other surfaces.
In the middle of the night, the snow will come down quite hard, perhaps even up to 2 inches per hour in a few spots. When you get up tomorrow morning, expect most of what is on the accumulation maps to have fallen, although there could be an inch to 3 inches before 10 a.
Coastal flooding will be minor to borderline moderate.