DAYS 1-5 (JANUARY 22-26)
As stated previously, I mentioned that for areas I thought may have measurable frozen precipitation that a final call would appear on Sunday morning’s blog post, and that will follow just below. I’ve made a slight adjustment southeastward on the forecast storm track, expecting the low center to pass over the outer portion of Cape Cod or the Islands Monday. The center will also be elongated, and a little westward extension of low pressure as it moves away will allow the precipitation to hang on a little longer, allowing colder air in with enough time for a swath of snow across much of the region, after a mainly rain event for a good portion of it from tonight into early Monday. But enough snow will fall for the need of some removal activity especially northwest of a Boston-Providence line. After that system moves out, we get a dry interlude for Tuesday before the next system heads in for Wednesday into part of Thursday. This system continues to present as a snow to rain event for the region, with snow hanging on longest the further west and north of Boston you go. Details on this system will be worked out over the next couple days.
TODAY: Cloudy. Patchy afternoon drizzle / snow grains. Highs 35-42. Wind variable becoming SE to S up to 10 MPH.
TONIGHT: Overcast. Precipitation arrives quickly from southwest to northeast as snow in southwestern NH and north central MA where it transitions to a mix of snow/sleet/rain overnight, a brief period of snow and/or sleet inside I-495 before going to rain, and just rain elsewhere. Lows 32-39. Wind E 5-15 MPH, higher gusts along the coast overnight.
MONDAY: Overcast. Steadiest rain early morning but may still be mixed with sleet and snow in southwestern NH and north central MA, then tapering to occasional rain/drizzle except some snow/sleet mix potential continuing in aforementioned areas to the northwest, then precipitation becoming steady again west northwest to east southeast midday on, mainly as snow, but starting as rain/mix before transitioning to snow further south. Expected snowfall accumulation: 4-8 inches interior southern NH and north central MA with isolated amounts of greater than 8 inches possible in the highest elevations, 2-4 inches NH Seacoast down I-495 belt to I-90 region, 1/2 to 2 inches I-95 corridor, under 1/2 inch southeast of I-95 to little or nothing along the South Coast. Highs 33-40 except over 40 South Coast. Wind NE to N 10-20 MPH, strongest near the coast where higher gusts are possible.
MONDAY NIGHT: Evening snow showers possible especially eastern and southern areas, otherwise breaking clouds. Lows 22-29. Wind W 10-20 MPH, gusty.
TUESDAY: Partly sunny. Highs 33-40. Wind NW 10-20 MPH, gusty.
TUESDAY NIGHT: Mostly clear. Lows 17-24. Wind N up to 10 MPH.
WEDNESDAY: Clouding over. Snow inland / mix coast by late in the day. Highs 33-40. Wind NE 5-15 MPH.
WEDNESDAY NIGHT: Overcast with snow/mix transitioning to mix/rain. Temperatures steady or rising slightly. Wind E-SE 10-20 MPH, higher gusts.
THURSDAY: Overcast with rain likely in the morning, possible mix far northwestern areas. Breaking clouds afternoon. Highs 36-43. Wind variable 5-15 MPH becoming NW 10-20 MPH.
DAYS 6-10 (JANUARY 27-31)
Trend to more seasonable cold. Watching for a disturbance with minor precipitation event – probably just a frontal passage – during the first part of the period and eyeing a more formidable low pressure impact potential around January 30, but the latter event is highly uncertain.
DAYS 11-15 (FEBRUARY 1-5)
Pattern trends colder. Watching a system for around February 2-3 with winter storm potential.