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Boston weather, metro north and west: Milder, periods of showers Friday

Milder temperatures will be accompanied by showers on Friday in the Boston area.
Milder temperatures will be accompanied by showers on Friday in the Boston area.

A brief warm up is on the way Friday and Saturday before temperatures begin to go downhill once again Saturday night into the start of next week. The pattern looks to be a wet one over the next several days with bouts of showers developing Friday, becoming a steadier and heavier rain by Saturday night and continuing through Sunday.

Low pressure in the Great Lakes this morning will track northeast to a position near Quebec City by Friday evening. The attendant warm front will lift northward through New England bringing a milder day on Friday. Showers are likely as well along with a gusty south to southwest wind flow. A mild and wet night follows as the attendant cold front approaches, pushing across the local area late Friday night or very early Saturday morning. The cold front stalls over the south coast of New England as low pressure moves along the front across the Tennessee Valley Saturday. This low will be off the southern New Jersey coast by Sunday morning, moving slowly east across the open waters to the south of New England during the day.

An extended period of damp weather is likely through the weekend, perhaps into Monday as well, as these two low pressure systems will control our weather over the next few days. Also, the milder temperatures on Friday and to a lesser degree Saturday begin to fall below normal Saturday night and that trend will lock in a raw Sunday with a cold rain expected. As I mentioned yesterday it would not be surprising to see a wintry mix across the far interior Sunday, especially with periods of sleet mixing with the rain. That trend may make it all the way to the coast during Sunday night. Rainfall over the weekend could reach 2 inches with locally higher amounts possible.

Unfortunately there is not much hope for clearing early in the work week. With an upper level disturbance spinning over the area Monday we can look for more showery conditions and chilly air.

Tuesday may dry out with high pressure approaching for our first day of April. But, wet weather could be back on the radar Wednesday as another disturbance moves toward southern New England.

Three Day Outlook:

Friday: Milder and turning wet with periods of showers likely. High temperatures in the low 50s. Gusty south to southwest winds.

Friday night: Periods of showers mainly before midnight. Remaining mostly cloudy overnight. Mild, lows in the low to mid 40s. Southwest winds 10 to 20 mph.

Saturday: Cloudy, rain developing later in the day. Highs in the upper 40s. Winds turn northeast in the afternoon at 8 to 15 mph.

Saturday night through Sunday night: Rain, possibly heavy at times. Breezy and turning cooler. Sleet and possibly snow could mix in through the interior Sunday, possibly extending to the coast at night. Overnight lows in the 30s. Highs on Sunday close to 40 degrees.

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