New Marlboro, Massachusetts Weather Forecast Discussion

807
FXUS61 KALY 190606
AFDALY
AREA FORECAST DISCUSSION
National Weather Service Albany NY
206 AM EDT Fri Sep 19 2025
.SYNOPSIS...
The passage of a cold front and high pressure building
southward from Canada will bring dry and more seasonable weather
today through the upcoming weekend. Chilly nights this weekend
will result in frost or freeze conditions in some areas. Chances
for much needed rainfall increase by early next week.
&&
.DISCUSSION...
A north to south progressing cold front is beginning to cross
the region and will complete its passage by later this morning.
A couple of showers did accompany the front across the
Adirondacks earlier but these have since dissipated and dry
weather is expected areawide through the rest of the night and
today. This front will advect a cooler, more seasonable and
drier air mass into the region as high pressure gradually builds
southward from Canada. High temperatures today will range from
the 60s in the higher elevations to the 70s to near 80 in the
valleys. Some clouds will be around through this morning, then a
trend to a clear/mostly clear sky is expected by later this
afternoon into tonight. As the high builds in tonight, a clear
sky and light to calm winds will promote ideal radiational
cooling conditions. Temperatures will fall back into the 30s to
mid-40s for most areas. Frost/freeze conditions are likely
across portions of the southern Adirondacks with temperatures
falling in the upper 20s to mid-30s where frost advisories and
freeze warnings have been issued.
The high will be directly overhead on Saturday promoting
continued dry conditions under a mostly clear sky and highs in
the mid-60s to lower 70s. Another chilly night is expected
Saturday night with lows once again in the 30s to mid 40s.
Frost/freeze conditions may occur once again across the
Adirondacks but may also expand into the Upper Hudson/Lake
George region. The high will shift eastward over New England on
Sunday but another dry and seasonable day is expected. With a
light southerly return flow developing late in the day and
Sunday night, it will not be as chilly as previous nights with
lows mainly in the 40s.
South to southwesterly return flow will be in place early next
week ahead of a low pressure system and cold front. An increase
in moisture combined with a passing shortwave or two should aid
in at least isolated to scattered rain showers and possibly a
thunderstorm. Precipitation chances are favored across areas
north and west of Albany on Monday and areawide on Tuesday.
There is some uncertainty whether or not we will become post
frontal and trend drier by Wednesday or if additional showers
will be possible. Due to uncertainty, will keep low chance PoPs
for Wednesday and a return to drier weather by Thursday as
another high pressure system builds overhead. High temperatures
much of next week will be in the 70s with some upper 60s at
times across the higher elevations. Lows will be in the 40s and
50s.
&&
.AVIATION /05Z FRIDAY THROUGH TUESDAY/...
Through 06Z Saturday...A cold front will push southward across
the area through the early morning hours. Mid level clouds will
increase along and behind the front at KALB/KGFL/KPSF. Skies
should remain mostly clear with calm winds at KPOU though, so
some occasional mist with MVFR vsby may occur prior to the cold
front arrival. Cig heights expected to lower to MVFR levels at
KGFL prior to 12z and possibly at KPSF. Cig heights expected to
remain VFR at KALB although a brief period of MVFR cannot be
ruled out. Clouds will gradually scour out by this afternoon,
with skies becoming clear late in the day. Winds will shift to
the north-northwest behind the cold front and increase to 8-11
kt with gusts of 15-20 kt developing this afternoon.
Outlook...
Saturday Night: No Operational Impact. NO SIG WX.
Sunday: No Operational Impact. NO SIG WX.
Sunday Night: No Operational Impact. NO SIG WX.
Monday: No Operational Impact. NO SIG WX.
Monday Night: Moderate Operational Impact. Chance of SHRA.
Tuesday: Moderate Operational Impact. Chance of SHRA...TSRA.
Tuesday Night: Moderate Operational Impact. Chance of SHRA.
Wednesday: Moderate Operational Impact. Chance of SHRA.
&&
.FIRE WEATHER...
A cold front and high pressure building in its wake from Canada
will bring a cooler and drier air mass Friday through the
weekend. North to northwest winds will generally be between
10-15 mph today with some localized gusts up to 20 mph. RH
values will lower to between 35 and 50 percent during the
afternoon hours. Despite RH values lowering to the 25 to 35
percent range on Saturday, winds will be lighter at less than
10 mph.
&&
.ALY WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...Frost Advisory from 2 AM to 8 AM EDT Saturday for NYZ032-042.
     Freeze Warning from 2 AM to 8 AM EDT Saturday for NYZ033.
MA...None.
VT...None.
&&
$$
SYNOPSIS...Rathbun
DISCUSSION...Rathbun
AVIATION...JPV
FIRE WEATHER...Rathbun/Webb

NWS ALY Office Area Forecast Discussion