Middletown, Connecticut 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

484
FXUS61 KOKX 150846
AFDOKX

Area Forecast Discussion
National Weather Service New York NY
446 AM EDT Thu May 15 2025

.SYNOPSIS...
Low pressure continues to weaken as it approaches today. An
associated frontal boundary looks to stay just south of the area
through the day and may push through late. Another frontal system
impacts the area Friday through Saturday. High pressure will
gradually return early next week as low pressure lingers just east
of New England. A frontal system may approach during the middle of
next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
The previous upper level low that lingered over the Gulf states for
several days has now opened up into a trough, with the axis just
west of the area currently. At the surface, a weakening low is
centered over the Mid-Atlantic coast, with a frontal boundary
extending to just south of our area. Convective activity is now
limited to eastern CT and eastern LI, likely with the help of a 500-
1000 J/kg MUCAPE axis and nose of a weakening LLJ. This activity
will continue to weaken and shift east gradually. See Hydrology
section below.

The upper level trough moves through today. The boundary at the
surface stays to our south, but may push through late in the day.
The area destabilizes today, with latest CAMs showing about 500-1000
J/kg of MLCAPE. This is due to an increase in moisture and
temperature at the surface today. With very weak lift available,
some pop isolated to scattered pop up convection is possible. The
chances for any thunder are greater across the interior, as any
capping will be greater towards the coast. Very slow storm motion
could result in some localized longer lasting downpours, but with
weak shear no organized convection is expected. This activity
diminishes after sunset.

The pressure gradient really slackens by this evening and expecting
calm to light winds across the whole area. Fog likely returns given
this and the onshore component of the past few days.

For highs today, went a bit cooler than NBM, mainly across LI and
coastal CT where clouds and an onshore flow should keep temps down
in the upper 60s for the most part. Stuck with NBM for lows. The
pressure gradient really slackens by this evening and expecting calm
winds across the whole area. Fog likely returns.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
Unsettled weather continues through the short term period.
Brief zonal flow aloft follows the departing trough, but another
upper level low approaches. The associated surface low will
impact the area through Saturday night. There is quite a bit of
uncertainty as far as PoPs and thunder during this period. The
most uncertainty is with Friday morning and afternoon as
guidance continues to show a decaying line of showers and
thunderstorms approaching tonight into Friday morning. If this
activity does make it, the best chances will be for northeast NJ
and the Lower Hudson Valley. There may be additional chances
for showers and thunderstorms in the afternoon, but confidence
in this is decreasing as lift looks weak.

The upper level low gets closer on Saturday and moves overhead
Saturday night. A cold front also moves through Saturday night.
While conditions may become more conducive to showers and
thunderstorms on Saturday there is still uncertainty and the
mesoscale setup will become better resolved over the next few days,
which should help give more confidence on the evolution of potential
convection. If the current timing holds, any showers/thunderstorms
will likely be out of the area or dissipate by around midnight.

Warmer temps are expected on Friday and Saturday, highs in the
70s and potentially lower 80s for northeast NJ on Saturday.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
Key Points:

* Temperatures will mainly run above normal through the weekend
  before trending closer to normal early next week.

A blocky synoptic pattern will continue through the middle of
next week.

The system that impacts the area Friday and Saturday will push
east of the area on Sunday and then remain near or just off the
New England coast early next week. Lingering cyclonic flow aloft
Sunday may be enough to produce a diurnally driven isolated
shower well inland in the afternoon. Upper ridging will build
just to our west early next week with another trough amplifying
over the western states. The proximity of the ridging and upper
low just offshore should keep conditions dry Monday into
Tuesday. The NBM indicates an increase in precip probabilities
on Wednesday which may be overdone given the nearby ridging
which may take some time to break down. Will indicate a low
probability for now with potential of another frontal system
attempting to approach mid next week.

&&

.AVIATION /09Z THURSDAY THROUGH MONDAY/...
Low pressure weakens as it approaches today.

Low cigs and vsby will be the main story through daybreak. LIFR
cond are likely, with VLIFR conditions possible at times, and
should last until at least 14Z-15Z, and likely until around
16Z-17Z at KHPN/KGON.

Improvement to MVFR at times from KLGA and points N and W, with
the highest probability of MVFR conditions for KSWF. However there
is a good deal of uncertainty in the forecast for these areas,
with IFR to MVFR conditions possible Thursday afternoon. Coastal
terminals are likely to remain or improve to IFR Thursday
afternoon. Conditions are expected to deteriorate once again
Thursday night to IFR or lower for all terminals.

E to ESE winds at less than 10 kt through the TAF period become
light and variable overnight tonight.

 ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...

Amendments expected for changing flight categories throughout
the TAF period.

.OUTLOOK FOR 06Z THURSDAY THROUGH MONDAY...

Thursday night: Low clouds/fog with IFR/LIFR cond returning.

Friday: IFR/LIFR in the morning, then chance of MVFR in the
afternoon/evening with slight chance of tstms.

Saturday: MVFR cond expected, IFR possible, with showers likely
and chance of tstms.

Sunday...Mainly VFR.

Monday...VFR.

Detailed information, including hourly TAF wind component
forecasts, can be found at: https:/www.weather.gov/zny/n90

&&

.MARINE...
A Dense Fog Advisory is now in effect for all waters. Dense fog
will likely lower visibilities to less than 1 NM through the
morning hours.

The Small Craft Advisory has been adjusted to have the ocean waters
from Sandy Hook to Fire Island Inlet end at 2 PM as seas will likely
decrease there sooner than previously forecast. The SCA for the rest
of the ocean waters expires at 6 PM.

Conditions then remain below SCA levels through next Monday with a
relatively weak pressure gradient over the waters.

&&

.HYDROLOGY...
Some heavy downpours and isolated thunder across eastern LI and CT
has led to some minor pour drainage flooding this morning. This
activity is not expected to reach flash flooding levels and should
diminish as we head towards sunrise. Shower and thunderstorm
coverage will likely increase this afternoon and heavier downpours
are possible again. At this time, flash flooding is not expected
with that activity either.

There are currently no hydrologic concerns Friday through early next
week.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
NJ...None.
MARINE...Dense Fog Advisory until 11 AM EDT this morning for ANZ331-332-
     335-338-340-345-350-353-355.
     Small Craft Advisory until 6 PM EDT this evening for ANZ350-
     353.
     Small Craft Advisory until 2 PM EDT this afternoon for ANZ355.

&&

$$

SYNOPSIS...DS/JT
NEAR TERM...JT
SHORT TERM...JT
LONG TERM...DS
AVIATION...JP
MARINE...DS/JT
HYDROLOGY...DS/JT