❰ Current Conditions
Winter Weather Advisory
Winter Weather Advisory issued December 16 at 3:44AM EST until December 17 at 1:00PM EST by NWS Boston/Norton MA
WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 1 PM EST TUESDAY
* WHAT...Mixed precipitation expected. Total snow accumulations of 1 to 3 inches and ice accumulations of a light glaze.
* WHERE...Mainly along and southeast of the Boston to Providence corridor.
* WHEN...From 1 AM to 1 PM EST Tuesday.
* IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the morning commute.
* ADDITIONAL DETAILS...Moderate to heavy snow is expected to be in progress during the start of the Tuesday morning commute near and especially south of the Massachusetts turnpike. The precipitation will transition to a brief period of sleet and freezing rain during the morning before a transition to all rain.
*PRECAUTIONARY/PREPAREDNESS ACTIONS...Slow down and use caution while traveling.
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
359 AM EST Mon Dec 16 2019
High pressure provides dry conditions today, though clouds will
increase through the day. Low pressure will bring light snow
from south to north early tonight, then will become a wintry
mix along the south coast toward daybreak as milder air works
in aloft. The low will push south of the region on Tuesday,
with the wintry mix moving across most areas by midday, though
there will be a chance to rain along the immediate coast. As the
low moves offshore late Tue into Tue evening, the precipitation
changes back to snow across most areas before moving offshore by
around midnight or so.
Outlook...Wednesday through Friday...
A weak system will move across northern New England on Wednesday
and an associated arctic front. There will be a round of
scattered show showers, with the best chance across the east
slopes of the Berkshires and along the coast before ending
Thursday evening, though could linger on the mid and outer Cape
and the islands through around midnight. Expect dry but very cold
and blustery conditions in place on Thursday. High pressure
shifts slowly east on Friday with dry conditions and continued
Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham,
359 AM EST Mon Dec 16 2019
Today Tonight Tue
Cloud cover Pcldy Mcldy Cloudy
Precip type None Snow Snow/rain
Chance precip (%) 0 80 100
Temp (24h trend) 35 (-9) 26 (+1) 33
RH % (24h trend) 41 (+11) 88 (+9) 85
20ft Wnd AM(mph) W 6 Lgt/Var
20ft Wnd PM(mph) W 5 Lgt/Var Lgt/Var
Precip amount 0.00 0.03 0.42
Precip duration 2 12
Precip begin 2 AM Continuing
Precip end Continuing Continuing
Mixing hgt (ft-AGL) 2860 120 1140
Transport wnd (kts) W 14 SW 3 NE 14
Vent rate (kt-ft) 40040 360 15960
ADI early 43 Gen Good 4 Very Poor 15 Gen Poor
ADI late 35 Fair 2 Very Poor 19 Gen Poor
Max LVORI early 3 3 6
Max LVORI late 2 5 6
CWR 0 20 100
LAL No Tstms No Tstms No Tstms
Haines Index 4 4 2
.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT...Mostly cloudy with snow likely. Lows in the mid
20s. Northwest winds around 5 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Lows around 12.
Highs in the mid 30s. Northwest winds 10 to 15 mph.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Colder. Lows around
12. Highs in the lower 20s. Northwest winds 5 to 10 mph.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Lows around 15. Highs in
the upper 20s. Northwest winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the lower 30s. West winds
around 5 mph, becoming southwest in the afternoon.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows in the mid 20s.
Highs around 40. West winds around 5 mph.