11:32AM<\/p>\n
SUMMARY…
\nTime to focus on the well-advertised long-duration snow event. The set-up has been described in previous entries but let’s review quickly. An arctic cold front settles southward across southern New England today and then sits just off the South Coast for the rest of the weekend as a couple waves of low pressure ride along it, producing periods of snow, first very patchy and light this afternoon then a little more so tonight and Sunday, then with the most widespread precipitation coming Sunday night and Monday as a final and slightly stronger wave of low pressure moves along the front. This final wave may come a little bit closer, enough to introduce mixed precipitation to South Coastal locations, but at this time I don’t see any mix coming further north than that as the cold air will be a stronger force, aided by a deep snow cover across just about all of southern New England. Snow amounts from the entire episode are about to be listed below and I will try to re-visit them by time period in the forecast that follows this summary. It’s important to note that there can be large variations in snowfall across the region, not only due to the somewhat disorganized nature of the precipitation associated with these disturbances, but also due to ocean-enhancement which will likely be a factor near the eastern coastal areas of MA and NH, and then the mix factor possibly being involved near the South Coast later in the event. ***TOTAL ACCUMULATION EXPECTED FOR EVENT FROM START TO FINISH: 2-4 inches immediate South Coast, 4-8 inches just away from South Coast from central RI eastward across Upper Cape Cod, and 8-16 inches elsewhere, and spotty amounts above 16 inches are likely along east coastal MA and NH as well as a few towns on eastern slopes of higher hills. There are some signs that the entire event may try to wrap up a bit earlier than previously though, but for now will leave the chance of snow showers in eastern NH and MA into Tuesday morning especially Cape Cod due to cold north wind over relatively warmer water behind the intensifying final low pressure wave. A quick “break” comes later Tuesday and Wednesday as a narrow high pressure area moves in, though it will be fairly cold but not frigid. A clipper low pressure system and attendant Arctic front comes through the region next Thursday with a minor snow event, but opens the door for a major cold blast to end the week.<\/p>\n
SOUTHEASTERN NEW ENGLAND FORECAST…
\nTODAY: Clouding up. Patchy light snow possible this afternoon with less than 1 inch accumulation. Highs 25-30 southern NH and northern MA, 30-35 to the south, then falling slowly during the afternoon. Wind light SW shifting to NW then N from north to south across the region.
\nTONIGHT & SUNDAY: Overcast. Periods of snow, mostly light to moderate. Accumulation 2 to 6 inches through this period with locally heavier possible in parts of northeastern MA and southeastern NH, and areas of below 2 inches closer to the South Coast. Temperatures nearly steady from 15-20 southern NH to near 30 South Coast. Wind NE to E 5-15 MPH.
\nSUNDAY NIGHT THROUGH MONDAY NIGHT: Overcast. Steadier snow, mostly light to moderate with a few heavier bands favoring east coastal areas of MA and NH. Additional accumulation of 2 to 8 inches from south to north with locally heavier possible in parts of northeastern MA and southeastern NH. Also, sleet\/ice\/rain mixing near the South Coast at times. Temperatures nearly steady ranging from the upper 10s northern MA and southern NH to lower 30s South Coast. Wind NE to E 5-15 MPH, higher gusts, later Monday, shifting more to the NE and N Monday night.
\nTUESDAY: Early snow showers especially eastern areas otherwise clearing. Breezy. Highs in the 20s.
\nWEDNESDAY: Sunny. Low 15. High 25.
\nTHURSDAY: Cloudy. Snow or snow showers. Low 20. High 30.
\nFRIDAY: Sunny and windy. Low -5. High 10.<\/p>\n","protected":false},"excerpt":{"rendered":"
11:32AM SUMMARY… Time to focus on the well-advertised long-duration snow event. The set-up has been described in previous entries but let’s review quickly. An arctic cold front settles southward across southern New England today and then sits just off the South Coast for the rest of the weekend as a couple waves of low pressure … Continue reading Weekend Update #1<\/span>