New England Weather Discussion

(With thanks to the surrounding National Weather Service Offices)

Time of the readings below: 16 Apr 2024 11:34 AM
Current Temperature: 57.1°F (1.4) 
High Temperature for the day: 57.5 at 11:26 AM.
Low Temperature for today: 35.0 at 4:56 AM.
Rainfall Today: 0.00 inches
Current Dewpoint: 34.2°F (-3.1)
Hours of Daylight Tomorrow: 13:29
Find all of my instrument readings here.

Last complete site update: 4/16 - 7:02 AM

Skies were clear and it was a chilly start to the day with temps in the middle 30s from Keene to Peterborough, NH.
A short wave trough pushes through northern New England today allowing for another weak cold front to move across the region. The air mass ahead of the front is dry so we only expect some clouds but no rainfall. Winds will however become gusty with westerlies gusting around 25 MPH with a few 30 MPH gusts possible.

Winds quickly diminish this evening as high pressure slides down from the northwest. Low temperatures have been based largely on a blend of the model guidance. Mostly clear skies expected except for some mountain strato-cumulous.

High pressure dominates Wednesday with mostly sunny skies except for perhaps some late day cirrus moving into southern zones. Otherwise, winds will be much lighter with an afternoon seabreeze expected.

Long range:
Overview: Warm pattern continues before a cold front brings the chance of rain and slightly cooler temps Friday into Saturday.

Details: Low pressure will be occluding over the western Great Lakes Wednesday evening, with a elongated warm front reaching towards the Mid-Atlantic. This boundary will have good moisture with it and guidance depicts widespread showers to the SW of the forecast area overnight. Strong high pressure to the NW will have been continuing advection of dry air at the surface and upper levels across the area, so the incoming moisture will have to contend with that. Guidance has been consistent in suggesting a resulting mid deck of clouds easily pushing into the area into the day Thursday, but model soundings really hold low level dry air steadfast. Thus have lowered suggested model PoPs, focusing the chance of any showers towards Thursday evening across SW and west NH. This will only be enabled as the parent low draws north and the boundary almost tilts poleward along the VT/NH border. Will keep these at slight chance/chance PoPs for now. Dry air aloft could limit this to just a period of drizzle or scattered sprinkles. Daytime highs may be greatest across the Kennebec Valley as clouds take longer to move in here. Highs around 60 will be possible here, with low to mid 50s to the SW.

With flow finally turning out of the SE, Thursday night should be fairly mild. Will see clouds expand NE with time, but precip chances again wane as the front washes out. Friday should warm nicely, with rain chances again building into the late afternoon and overnight hours. This round looks at least more certain with areal coverage, but precipitation remains light as cold front passes through. This will likely be enough to dampen the surface into Saturday morning while some showers continue to develop out of the mountains through the afternoon.

Remainder of the weekend into early next week looks a couple degrees cooler, but mostly dry conditions seem possible considering broad high pressure moving east to start the week.

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