Old Res Weather

Lexington, Massachusetts, USA

35°F

2/16/2025 7:17pm

Lexington Conditions: Light snow, Overcast
Temperature: 35.1°F / 1.7°C
Dew Point: 32.4°F
Relative Humidity: 90%
Wind: Calm, 10-min avg: Calm, gust: None
Barometer: 29.00 in Falling Slowly
Visibility: 1½ miles
Rain Today: 0.01 in
UV Index: $VPuv None

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 261128
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
628 AM EST Mon Jan 26 2026

.WHAT HAS CHANGED...
Heavy snow has ended and light snow showers will 
continue through the day on Monday.

&&

.KEY MESSAGES...

- Periods of light to moderate snow continue behind low pressure as 
it pulls offshore Monday. 

- Abnormally cold and mostly dry with yet another storm possible off 
the coast next weekend.

&&

.DISCUSSION...
Key Message 1...Periods of light to moderate snow continue behind 
low pressure as it pulls offshore Monday. 

The surface low is well into the north Atlantic by noon today and 
the expected dry slot has moved overhead shutting off efficient snow 
making. So, while lingering wrap around moisture will continue to 
produce light snow across the region today, lack of moisture and the 
strong forcing that we saw on Sunday will mean much less in the way 
of additional snowfall today. Overall, expecting 1-2 inches in 
inland SNE with 2-5 inches more likely as you get closer to the 
extreme eastern and northeastern MA coastline. This is where NE wind 
trajectory off the water together with convergence ahead of a front 
late in the day will lead to a pickup in snow coverage by the 
afternoon/evening. 

Key Message 2...Abnormally cold and mostly dry with yet another 
storm possible off the coast next weekend. 

Quiet weather then follows our active start to the week as dry, 
abnormally cold NW flow lingers overhead most of the week. 
snowstorm. Temperatures remain well below normal each day. Normal 
highs/lows for late January are in the mid 30s and low 20s 
respectively; we are forecasting highs in the teens and 20s with 
lows in the single digits thanks to an anomalously cold airmass 
overhead. A few shortwaves rounding the broader trough could bring 
some flurries off and on but on the whole things look dry. We 
continue to monitor a potential storm off the coast toward next 
weekend. Can we make it 3 sunday coastal storms in a row? We'll
see!

&&

.AVIATION /12Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

12z Update

Monday: High Confidence in trends. Moderate Confidence in 
timing.

Light snow continues this morning and through the evening. 
Prolonged northeasterly flow brings ocean enhanced snow to the 
northeastern coastal plain, including Boston, through evening. 

Monday Night: High Confidence.

MVFR, becoming VFR. Sky cover becoming clear. NW wind 10 knots 
with gusts 20 knots.

Tuesday: High Confidence.

VFR. Mid-level clouds increase through the day with winds 
decreasing and shifting WSW.

KBOS Terminal...High Confidence in TAF.

KBDL Terminal...High Confidence in TAF.

Outlook /Tuesday Night through Friday/...

Tuesday Night through Wednesday: VFR. Breezy. 

Wednesday Night: VFR. 

Thursday through Friday: VFR. Breezy.

&&

.MARINE...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

Through Tuesday: High confidence. 

Gale-foce wind from the northeast gusting 30-40 knots this
morning over the eastern waters as the low exits. Seas 10-12 ft. Wind
shifts northwest Monday afternoon with gusts less than 20 
knots. With the shift in wind, snow showers are possible Monday 
afternoon, followed by drying conditions Monday night. Monday 
night into Tuesday winds gust 25-40 kts with seas 7-10 ft. 

Outlook /Tuesday Night through Friday/...

Tuesday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 30 kt. Areas of rough seas. Slight chance of
snow. 

Wednesday: Winds less than 25 kt. Local rough seas. 

Wednesday Night: Winds less than 25 kt. Seas locally
approaching 5 ft. Slight chance of snow. 

Thursday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of seas approaching 5 ft. Chance of freezing
spray, slight chance of snow. 

Thursday Night: Strong winds with gusts up to 30 kt. Seas up to
5 ft. Chance of freezing spray, slight chance of snow. 

Friday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Seas up to 5 ft. Chance of freezing spray.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Storm Warning until 8 PM EST this evening for 
     CTZ002>004.
MA...Winter Storm Warning until 8 PM EST this evening for 
     MAZ002>022-026.
RI...Winter Storm Warning until 8 PM EST this evening for 
     RIZ001>007.
MARINE...Small Craft Advisory until 7 AM EST Tuesday for ANZ230-231-250-
     251-254.
     Small Craft Advisory until 1 AM EST Tuesday for ANZ232>235-237-
     255-256.

&&

$$

DISCUSSION...BW/McMinn
AVIATION...BW/McMinn
MARINE...BW/McMinn