Area Forecast Discussion
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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FXUS61 KOKX 150709
AFDOKX
Area Forecast Discussion
National Weather Service New York NY
209 AM EST Sat Nov 15 2025
.SYNOPSIS...
High pressure nearby shifts offshore today, as a warm front
approaches from the south and west. The front lifts through the
region into this evening, with an attendant cold front moving
through tonight. The departing system exits into the Canadian
Maritime on Sunday, with high pressure building back in from the
west through mid next week. A frontal system may then impact
the region Thursday into Friday.
&&
.NEAR TERM /THROUGH TONIGHT/...
Ridging briefly builds in today with surface high pressure in place.
Northern branch shortwave dives south from Ontario, breaking down
the ridging and carving out a trough over the Northeast into the
latter half of the weekend.
After the cold, frosty start with most in the 20s and 30s,
temperatures rebound into the upper 40s this afternoon. Conditions
remain dry through the day with the ridging, though cloud cover
thickens and lowers late as a warm front approaches from the
southwest. Flow turns SW or S this afternoon as the surface high
drifts off the Jersey shore, and WAA then continues as the warm
front moves through and temperatures rise into the 50s through
the evening. Rain overspreads generally from west to east after
sunset, with showers developing into the NYC metro by early evening.
Can`t entirely rule out a few embedded rumbles of thunder with
the activity, 00Z HREF progs max elevated instability (MUCAPE)
of a hundred joules or two, mainly for coastal areas. Attendant
cold front with the frontal system sweeps east after midnight,
and likely brings a quick-moving moving band of showers along
and just ahead of it. Conditions then dry out overnight into
Sunday AM.
The system is rather progressive, and duration and rates should
keep QPF relatively low, a few tenths for NYC, NE NJ, and the
lower Hudson Valley, and up to a half inch or so across LI and
SE CT.
&&
.SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/...
In the wake of the exiting frontal system, increasing WNW flow
and CAA as the low deepens into the Canadian Maritimes and high
pressure builds in from the west.
WNW winds increase Sunday morning, gusting 30 to 35 mph across
the region through the day. Likely see a few gusts top 40 mph,
though appears to fall shy of Wind Advisory at this time. The
flow weakens just slightly by Monday, but remaining gusty
nonetheless, 25 to 30 mph during the afternoon.
High temperatures on Sunday likely occur overnight into the
early morning, before remaining steady or falling a few degrees
through the day with the cold gusty wind. Monday will be
the colder day, into the mid 40s for most, but with the winds
should feel like the 30s much of the day.
Can`t rule out a few streamers making it into the local area
from the northwest with cyclonic flow off the Lakes on Sunday,
but confidence in coverage and occurrence too low at this point
to include in forecast. Impacts minimal regardless outside any
brief heavier shower. Otherwise, predominantly dry weather
expected through early week.
&&
.LONG TERM /TUESDAY THROUGH FRIDAY/...
Key points:
* The winds diminish Tuesday with light to calm winds into mid week.
* Temperatures below normal through Wednesday, moderating to normal
Thursday, and slightly above normal Friday.
* Likely dry through at least Thursday afternoon with rain chances
increasing for Thursday night and Friday. Too early to have any
confidence regarding impacts.
Relatively high confidence forecast through Thursday. Uncertainty
increases Thursday night into Friday surrounding the track and
timing of low pressure that would appear to pass to our north at
some point late in the week. Did not stray from NBM during this
period. NBM is reasonably close to AI GEFS and AI EPS regarding
track and timing as implied by NBM wind fields. With that said, it
appears that the global deterministic models may have just started
converging on a solution with a slower timing of the system and its
potential impacts.
&&
.AVIATION /06Z SATURDAY THROUGH WEDNESDAY/...
Surface trough moves offshore overnight as high pressure gradually
builds and centers over the area toward daybreak. This high then
exits as our next low moves to the north with a frontal
system approaching later today into Saturday night.
VFR through this afternoon, then MVFR or lower Saturday evening as
rain moves in associated with the approaching low. There is some
uncertainty in timing and in the flight category forecasts.
Any light SW to W flow should shift to the WNW to NW winds at less
than 10 kt overnight as the surface trough slides off shore. There
may be some gusts behind the trough to around 20 kt out of the WNW
to NW, but did not include in TAFs as they look to be occasional.
Some outlying terminals may become light and variable, especially
towards daybreak. Winds shift to the SW to SSW late Saturday morning
into early afternoon as speeds remain at or under 10 kt until late
afternoon as they begin to increase with the approach of the low.
...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
No unscheduled amendments expected through today. Amendments likely
Saturday evening with uncertainty in flight category forecasts.
.OUTLOOK FOR 06Z SUNDAY THROUGH WEDNESDAY...
Saturday night: MVFR or lower in rain. SW winds 10-15 kt with gusts
up to 20 kt. Wind shear of 45 to 60 kt at 2 kft out of the SW is
also looking more likely.
Sunday: VFR. W winds 15-20 kt G30-35 kt late morning/afternoon.
Monday: VFR. W-WNW winds 15-20 kt G25-30 kt.
Tuesday: VFR.
Wednesday: VFR.
Detailed information, including hourly TAF wind component forecasts,
can be found at: https:/www.weather.gov/zny/n90
&&
.MARINE...
Winds and ocean seas increase this evening with a frontal
system moving through the region. The system exits on Sunday,
with strong winds expected to develop behind it and gale
conditions could persist through much of Monday on some waters.
Small Craft Advisory goes into effect on local ocean waters at
23Z this evening, and 3Z tonight on all other waters, as wind
gusts toward 25 kt develop and ocean seas build over 5 ft.
Gale Watch remains in effect on all waters Sunday with gusty
westerly flow expected to develop behind the frontal system. The
watch was extended through the day Monday, with highest
confidence on the ocean at this time.
Winds and seas begin to improve late Monday as high pressure
builds in, and sub SCA conditions are expected to return to all
waters by Tuesday, then remaining so through midweek.
&&
.HYDROLOGY...
There are no hydrologic concerns through the entire forecast
period.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
NJ...None.
MARINE...Small Craft Advisory from 10 PM this evening to 6 AM EST
Sunday for ANZ331-332-335-338-340.
Gale Watch from Sunday morning through Monday afternoon for
ANZ331-332-335-338-340-345-350-353-355.
Small Craft Advisory from 6 PM this evening to 6 AM EST Sunday
for ANZ345-350-353-355.
&&
$$
SYNOPSIS...DR
NEAR TERM...DR
SHORT TERM...DR
LONG TERM...JE
AVIATION...JE
MARINE...DR
HYDROLOGY...DR