A weekend storm will have an effect on journey all throughout the northeast as we kick off college winter trip week subsequent week and Presidents Day weekend.
Valentine’s Day
Temps keep within the 20s by sundown, however it’s going to really feel just like the higher teenagers due to a persistent gusty northwest wind. Gusts as much as 50 mph subside round sundown and we now have solely a light-weight breeze by in a single day. Lows drop to 10-20 levels for a lot of New England as we begin off good and calm Saturday morning.
Snowstorm Timing
Saturday morning and afternoon appears to be like cloudy, with temps within the 20s however dry. That is chilly sufficient to assist all snow with the onset of precipitation Saturday night.
By 6 p.m., mild snow develops in Boston, with regular snow by midnight for all of New England. Some 0.5 to 1 inches per hour snowfall charges are anticipated at occasions.
A nostril of heat air aloft strikes in from the south because the mum or dad low stress middle strikes over northwestern New England. This flips southern New England to sleet, then freezing rain round Sunday dawn.
We preserve freezing rain within the forecast exterior of Interstate 495 and the place chilly air damming retains temps from warming on the floor. This ice could add as much as .2 to .3” of accumulation on prime of the snow from in a single day. Boston experiences ice mixing then, flipping to rain by Sunday afternoon with heavy rain round 1 inch the remainder of the day.
In the meantime, the ice and snow stays regular inland by Sunday night.
One other factor to notice is {that a} floor low develops round Lengthy Island Sunday morning and this helps to inject a dry slot into southern New England. Gentle mist or freezing drizzle to fog could reduce down on accumulations of ice. That floor low finally takes over from the mum or dad low stress middle and strengthens because it heads to the Canadian Maritimes Monday.
Snowfall totals in Massachusetts, ice accumulation anticipated
Saturday evening we decide up 2-4 inches of snow for Boston, Windfall, Hartford and Worcester, and fewer than 2 inches of snow on the South Coast, Cape Cod & Islands. About 4-6 inches of snow and sleet for are anticipated for the Merrimack Valley to Manchester, New Hampshire, and Brattleboro, Vermont. We’re taking a look at 6-10 inches of regular snow for the entire occasion, from Saturday evening to Sunday evening for the mountains.
Ice of 0.2-0.3 inches Sunday noon for inside Massachusetts, Connecticut, to southern Vermont and New Hampshire on prime of the in a single day snow.
Any winter accumulation in Boston will get washed away by the Sunday afternoon rain.
Wind and coastal points
The wind received’t be a lot of a difficulty by way of damaging wind speeds, however nuisance wind — sure. Saturday evening can be east 5-10 mph, growing to 20-30 mph by Sunday afternoon. The wind flips extra northerly Sunday late day and picks as much as 40 mph. On Sunday evening into Monday our westerly wind could get damaging as numbers method 50-60 mph. This can be a results of the storm system pulling away throughout Monday and a big distinction in stress change between the deepening low throughout the Canadian Maritimes and excessive stress west.
The wave heights aren’t a difficulty till Monday both, as we see offshore winds churn up waves of 5-10 toes.
One other snowstorm Thursday?
Colder temps take over for Monday by Tuesday with highs within the low 20s and in a single day lows round zero.
We’ve a major storm exhibiting up on forecast steerage for the roughly Wednesday into Thursday timeframe. The observe of the storm just isn’t locked in, however there’s a robust sign for heavy snowfall and a coastal storm organising.
Keep tuned to our First Alert climate group for additional updates.
