Alert archive / Connecticut / Flash Flood Warnings in 2024

Flash Flood Warning 10, NWS New York, NY

August 3, 2024Greater Bridgeport Planning Region, Connecticut; Westchester County, New York

NWS New York, NY issued this flash flood warning at Aug 3, 2024, 4:45 PM EDT for Greater Bridgeport Planning Region, Connecticut; Westchester County, New York. It was in force for 95 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 3, 2024, 4:45 PM EDT (20:45 UTC)
Expired
Aug 3, 2024, 6:20 PM EDT
In force
95 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

Counties Greater Bridgeport Planning Region, CT, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 76 km from the middle of the area, began a volume at 20:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.8 hours before the alert went out and 75 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2024-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 388 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2024-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
388 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
974 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

284 
WGUS51 KOKX 032045
FFWOKX
CTC001-NYC119-032245-
/O.NEW.KOKX.FF.W.0010.240803T2045Z-240803T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
445 PM EDT Sat Aug 3 2024

The National Weather Service in Upton has issued a

* Flash Flood Warning for...
  Central Fairfield County in southern Connecticut...
  Northern Westchester County in southeastern New York...

* Until 645 PM EDT.

* At 445 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. The expected rainfall rate is 1 to 1.5 inches in 1 
  hour. Additional rainfall amounts of 1 to 2 inches are possible in 
  the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Stamford, Norwalk, Danbury, New Canaan, Mount Kisco, Newtown, 
  Ridgefield, Bethel, Wilton, Weston, Redding, Bedford and 
  Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4136 7360 4136 7356 4137 7354 4139 7336
      4117 7339 4115 7378

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-1.5 INCHES IN 1 HOUR

$$

JP
2 follow-up statements
555 
WGUS71 KOKX 032151
FFSOKX

Flash Flood Statement
National Weather Service New York NY
551 PM EDT Sat Aug 3 2024

CTC001-NYC119-032245-
/O.CON.KOKX.FF.W.0010.000000T0000Z-240803T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fairfield CT-Westchester NY-
551 PM EDT Sat Aug 3 2024

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM EDT THIS 
EVENING FOR CENTRAL FAIRFIELD AND NORTHERN WESTCHESTER COUNTIES...

At 551 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 2.5 inches of rain have 
fallen. Additional rainfall amounts up to 1 inch are possible in the 
warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Stamford, Norwalk, Danbury, New Canaan, Mount Kisco, Newtown, 
  Ridgefield, Bethel, Wilton, Weston, Redding, Bedford and 
  Georgetown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4136 7360 4136 7356 4137 7354 4139 7336
      4117 7339 4115 7378

FLASH FLOOD...RADAR INDICATED

$$

JP
928 
WGUS71 KOKX 032220
FFSOKX

Flash Flood Statement
National Weather Service New York NY
620 PM EDT Sat Aug 3 2024

CTC001-NYC119-032230-
/O.CAN.KOKX.FF.W.0010.000000T0000Z-240803T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Fairfield CT-Westchester NY-
620 PM EDT Sat Aug 3 2024

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL FAIRFIELD AND 
NORTHERN WESTCHESTER COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1200 AM EDT for portions of 
northeast New Jersey and southeast New York.

&&

LAT...LON 4136 7360 4136 7356 4137 7354 4139 7336
      4117 7339 4115 7378

$$

JP

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this flash flood warning went out at Aug 3, 4:10 PM EDT, 35 minutes earlier.

Area forecast discussion, Aug 3, 4:10 PM EDT, 35 minutes before
Area Forecast Discussion
National Weather Service New York NY
410 PM EDT Sat Aug 3 2024

.SYNOPSIS...
Low pressure and a frontal boundary remain in the vicinity through
Sunday night. A cold front then approaches on Monday and passes
through late at night. The front then stalls nearby through
Tuesday night before pushing just south and east of the area
Wednesday into Wednesday night as a weak area of low pressure
passes south of the area. The frontal boundary and remnants from
a tropical system slowly approach from the south through the
end of the week.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
A flood watch and severe thunderstorm watch continue for this
afternoon and evening for portions of the forecast area.

Shortwave lift and instability will continue to produce showers and
thunderstorms into this evening. Most of the forecast area stands a
good chance of seeing some rainfall by the end of tonight, but
parts of SE CT and eastern LI could end up dry for the night as
the shortwave exits NE and instability diminishes as the night
wears on. The late night hours should then be dry for most
areas.

Shear is just strong enough for severe wind gusts and large hail
in the strongest convection. Meanwhile, MLCAPEs range from
1500-2500 J/KG over approx the western half of the forecast
area. Isolated to scattered instances of severe thunderstorms
are possible from Nassau and Fairfield Counties to points west.
As such, a severe thunderstorm watch is in effect for these
areas through 9pm this evening.

Another concern is flash flooding. Flow through the mid levels
will be unidirectional and aligned with the orientation of the
stalled boundary in the vicinity of the northern/western zone.
So although the forward motion of the cells won't be very slow,
training is a possibility. Combined with PWATs 1.75-2.00
inches, hourly rainfall rates of 1-2 inches per hour and locally
briefly higher are possible. HREF probabilities show a 40-60%
chance of hourly rainfall rates of at least an inch per hour
this afternoon and evening in some areas. A flood watch for
flash flooding has therefore been issued for this afternoon
through midnight for NYC, Lower Hudson Valley, and NE NJ where
the combination of potential rainfall amount/rates and flash
flood guidance warrant a watch.

Otherwise, heat advisories remain unchanged into this evening
and muggy conditions continue overnight with lows mostly in the
70s.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY/...
A somewhat similar setup for Sunday as the frontal boundary will
still be over the area. A 500mb trough axis is progged to pass
through during the afternoon to evening hours, providing some lift
along with a 60-70kt jet streak region in the upper levels. There
will be a chance of showers and thunderstorms in the morning, but
they will become more likely starting in the afternoon. Training is
less of a concern this time, but the steering flow will be a little
weaker. PWATs still high enough however for the threat of isolated
flash flooding. The flooding threat should become a little more
clear after seeing how much rain falls through tonight. The rain
threat then diminishes along with the instability and lift in the
evening, with dry conditions everywhere by midnight. With weaker
shear and lower instability, the severe weather threat will be very
limited.

The frontal boundary dissipates just offshore and leaves us with
weak high pressure over the area during Monday. A cold front will
approach, bringing a chance of showers and thunderstorms during the
afternoon, mainly north of the city. The flooding threat looks to be
limited due to the relatively quick forward motion of any cells that
develop, and enough CAPE and shear introduces a low chance of strong
to severe wind gusts.

850mb temps are progged at 18-19C. There should be enough sunshine
and SW flow for mid 90s in the normally warmest spots with mostly
upper 80s to lower 90s elsewhere. Wind direction and low enough
boundary layer RH should allow for surface dewpoints to mix out a few
degrees during peak heating, so max heat indices will be generally
in the lower and middle 90s. With neither 100 degree heat indices on
Monday, nor 2-day criteria of 95+ indices, no heat advisories are
anticipated.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
A cold front will be draped across the area Monday night. A weak
area of low pressure along the frontal boundary over the Central
Plains states will move east along the boundary, passing south of
the Great Lakes during the day Tuesday, then just south of the
forecast area by Wednesday morning. As the low pushes east, it may
help to push the front just south of the area Wednesday afternoon
and night. Unsettled conditions are expected Monday night through
Wednesday with the front in the vicinity, then low pressure moving
nearby. However, the best chances for any showers and thunderstorms
will be with the low Tuesday night into Wednesday.

Chances for precipitation then drop off, and may drop off further
with more model runs if high pressure nudges more into the forecast
area than is currently forecast. However, given uncertainty in this
time frame onward, did not veer too far from NBM. Thereafter, even
more uncertainty in the forecast given the location of the remnants
of the potential tropical system and its interaction with the
frontal boundary leading to uncertainty in placement of any
potential for heavy rain during this time frame, so again stuck
close to the NBM. Therefore, unsettled weather is possible from the
middle of the week through the beginning of next weekend.

Easterly flow develops during this time frame, and in addition to
clouds and rain, this will lead to cooler conditions. Highs during
this time frame may will average below normal, and may not go above
80 for much of the region Wednesday, with slightly warmer, but still
below normal temperatures on Thursday. Conditions will still be
humid, but not like the extremely humid conditions we have been
experiencing as of late.

Low pressure over southeastern Canada, will slowly trek northeast
into the Canadian Maritimes by this evening. This will allow a cold
front to slowly approach today, moving through late in the
afternoon into the evening.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
Weak low pressure will remain in the vicinity with a front lingering
into Sunday.

Mainly VFR expected into this evening. TSRA becoming more numerous
north and west of the NYC terminals into this evening. Thunderstorms
may produce gusty winds into the evening. TSRA/SHRA dissipate after
1Z with mostly dry conditions expected overnight. Low stratus may
develop overnight with MVFR conditions possible after 06-09Z and
into Sunday morning. MVFR cigs may linger into late morning/early
afternoon (15-18Z). Another round of TSRA is possible Sunday, mainly
from 19-23Z for the NYC and northwestern terminals.

A S/SW flow 10-15 kts with sea breeze enhancement through the
evening. A few gusts of 20-25 kt are possible, especially at
coastal terminals. Winds lessen and remain out of the SW tonight
through Sunday morning.

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

Amendments possible with TSRA into this evening. Timing of MVFR cigs
late tonight may be off by an hour or two.

OUTLOOK FOR 21Z SUNDAY THROUGH THURSDAY...

Sunday: Chance of MVFR or lower in afternoon/evening in any
SHRA/TSRA.

Monday: VFR.

Tuesday-Wednesday: MVFR or lower possible in SHRA/TSRA.

Thursday: Mainly VFR. Chance of MVFR or lower in SHRA/TSRA.

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

&&

.MARINE...
Sub-SCA conditions expected for non-ocean waters through Monday
night. For the ocean, southerly fetch and swell will maintain seas
of at least 5 ft through Sunday evening. Have extended the SCA west
of Fire Island Inlet to go through midnight Sunday night, and
extended the SCA through all of Sunday night farther east. Sub-SCA
conditions follow for Monday.

Waves build on the ocean waters Monday night into Tuesday as low
pressure approaches and moves over the waters. Waves diminish
Tuesday afternoon as the low pushes east of the region. Waves
increase again later in the week with building long period
southerly swells from a tropical cyclone. Refer to latest
forecast information from the NHC.

&&

.HYDROLOGY...
Rainfall rates of 1-2 inches per hour and locally higher will be
possible into this evening. Given 1 and 3-hour flash flood guidance,
isolated to scattered instances of flash flooding will be possible
during this time, then generally dry conditions overnight.

Another round of showers and thunderstorms is anticipated Sunday
afternoon, potentially lasting into the evening. The extent of
potential flash flooding will partly depend on what occurs
through this evening, but it appears at least isolated flash
flooding can occur. No hydrologic issues are expected after
early evening Sunday through Monday night.

There is the potential for heavy rainfall Tuesday into Wednesday as
a weak area of low pressure moves along a stalled frontal boundary
in the vicinity of the forecast area. However, there remains a good
deal of uncertainty in exactly where the axis of heavy rain will set
up.

Another round of heavy rainfall is possible for the end of the week
into the beginning of next weekend with the remnants of the
tropical system. There is even more uncertainty with this feature.

&&

.TIDES/COASTAL FLOODING...
A high risk of rip currents continues into this evening and is
expected to continue all the way through Monday evening. This is
due to southerly swells of around 5 feet.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Air Quality Alert until 11 PM EDT this evening for CTZ005-006-
     009-010.
     Heat Advisory until 7 PM EDT this evening for CTZ005>011.
NY...Air Quality Alert until 11 PM EDT this evening for NYZ069>075-
     078>081-176>179.
     Heat Advisory until 7 PM EDT this evening for NYZ067>075-078-
     080-176>179.
     Flood Watch until midnight EDT tonight for NYZ067>075-176-178.
     High Risk for Rip Currents through Monday evening for NYZ075-080-
     081-178-179.
NJ...Heat Advisory until 7 PM EDT this evening for NJZ002-004-006-
     103>108.
     Flood Watch until midnight EDT tonight for NJZ002-004-006-
     103>108.
MARINE...Small Craft Advisory until 6 AM EDT Monday for ANZ350-353.
     Small Craft Advisory until midnight EDT Sunday night for
     ANZ355.

&&

SYNOPSIS...JC/JP
NEAR TERM...JC
SHORT TERM...JC
LONG TERM...JP
AVIATION...MW
MARINE...JC/JP
HYDROLOGY...JC/JP
TIDES/COASTAL FLOODING...
Hazardous weather outlook, Aug 3, 4:15 PM EDT, 30 minutes before
Hazardous Weather Outlook
National Weather Service New York NY
415 PM EDT Sat Aug 3 2024

NJZ002-004-006-103>108-NYZ067>074-176-040145-
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-Orange-
Putnam-Rockland-Northern Westchester-Southern Westchester-
New York (Manhattan)-Bronx-Richmond (Staten Island)-Northern Queens-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...SEVERE THUNDERSTORM WATCH 591 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northeast New Jersey and
southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.
   Heat Advisory.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ005-009-NYZ177-040145-
Northern Fairfield-Southern Fairfield-Northern Nassau-
415 PM EDT Sat Aug 3 2024

...SEVERE THUNDERSTORM WATCH 591 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for southern Connecticut and
southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.
   Severe Thunderstorm Watch.

In addition, with thunderstorms this afternoon into this evening,
there is a low chance for flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ006-010-NYZ078-040145-
Northern New Haven-Southern New Haven-Northwest Suffolk-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for southern Connecticut and
southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

In addition, with thunderstorms this afternoon into this evening,
there is a low chance for flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ075-178-040145-
Kings (Brooklyn)-Southern Queens-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...SEVERE THUNDERSTORM WATCH 591 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH MONDAY EVENING...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.
   Heat Advisory.
   High Rip Current Risk.
   Severe Thunderstorm Watch.

In addition, with thunderstorms this afternoon into this evening,
there is a low chance for flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   High Rip Current Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ179-040145-
Southern Nassau-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 591 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH MONDAY EVENING...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.
   High Rip Current Risk.
   Severe Thunderstorm Watch.

In addition, with thunderstorms this afternoon into this evening,
there is a low chance for flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   High Rip Current Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ080-040145-
Southwest Suffolk-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH MONDAY EVENING...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.
   High Rip Current Risk.

In addition, with thunderstorms this afternoon into this evening,
there is a low chance for flash flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   High Rip Current Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ007-008-011-040145-
Northern Middlesex-Northern New London-Southern Middlesex-
415 PM EDT Sat Aug 3 2024

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for southern Connecticut.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ012-NYZ079-040145-
Southern New London-Northeast Suffolk-
415 PM EDT Sat Aug 3 2024

This Hazardous Weather Outlook is for southern Connecticut and
southeast New York.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ081-040145-
Southeast Suffolk-
415 PM EDT Sat Aug 3 2024

...HIGH RIP CURRENT RISK IN EFFECT THROUGH MONDAY EVENING...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   High Rip Current Risk.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   High Rip Current Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ331-332-340-345-350-353-040145-
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
Long Island Sound East of the Mouth of the Connecticut River-
Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
415 PM EDT Sat Aug 3 2024

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ335-338-355-040145-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
415 PM EDT Sat Aug 3 2024

...SEVERE THUNDERSTORM WATCH 591 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

In the hours before

Local storm report, Aug 3, 4:06 PM EDT, 39 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
406 PM EDT Sat Aug 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0345 PM     Tstm Wnd Gst     1 SSW Ossining          41.14N 73.88W
08/03/2024  M62 MPH          Westchester        NY   Mesonet

            Gust to 62 mph at Tappan Zee Light Weather
            Flow Station. Station elevation 44 ft.

&&
Local storm report, Aug 3, 4:10 PM EDT, 35 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
410 PM EDT Sat Aug 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0354 PM     Tstm Wnd Dmg     West Nyack              41.09N 73.97W
08/03/2024                   Rockland           NY   Dept of Highways

            Downed tree blocking NY 59 westbound at
            Deacon Smith Hill Road in Nyack.

&&
Local storm report, Aug 3, 4:35 PM EDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
435 PM EDT Sat Aug 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0433 PM     Flash Flood      Park Ridge              41.03N 74.03W
08/03/2024                   Bergen             NJ   911 Call Center

            Park Avenue is closed at Rivervale road due
            to flash flooding.

&&
Local storm report, Aug 3, 4:42 PM EDT, 3 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
442 PM EDT Sat Aug 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     Flash Flood      1 W Montvale            41.05N 74.07W
08/03/2024                   Bergen             NJ   Emergency Mngr

            Vehicles disabled in flood waters on
            Chestnut Ridge Road.

&&
Local storm report, Aug 3, 4:43 PM EDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
443 PM EDT Sat Aug 3 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     Marine Tstm Wind 2 ESE Norwalk           41.08N 73.38W
08/03/2024  M42 MPH          ANZ335             CT   Mesonet

            Mesonet station XNOR 1 ESE Norwalk.

&&
Special weather statement, Aug 3, 4:45 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service New York NY
445 PM EDT Sat Aug 3 2024

CTZ006-007-032130-
Northern New Haven CT-Northern Middlesex CT-
445 PM EDT Sat Aug 3 2024

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN MIDDLESEX AND CENTRAL
NEW HAVEN COUNTIES THROUGH 530 PM EDT...

At 445 PM EDT, Doppler radar was tracking a strong thunderstorm over
Seymour, moving northeast at 30 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Waterbury, Meriden, Middletown, Wallingford, Shelton, Naugatuck, East
Hampton, Durham, Hamden, Cheshire, North Haven, Seymour, North
Branford, Cromwell, and Derby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southern Connecticut.

&&

LAT...LON 4163 7263 4164 7260 4151 7248 4131 7308
      4133 7312 4138 7316 4138 7317 4142 7321
      4156 7295 4156 7288 4154 7285 4157 7284
      4157 7283 4155 7282 4157 7280 4158 7275
      4159 7275 4161 7272 4163 7271 4164 7263
TIME...MOT...LOC 2045Z 239DEG 28KT 4140 7309

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Goodman

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 3, 4:07 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region38 min
Aug 3, 4:29 PM EDTAreal Flood AdvisoryOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region114 min
Aug 3, 4:41 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region49 min
Aug 3, 4:45 PM EDTSpecial Weather StatementOKX45 min
Aug 3, 5:22 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region53 min
Aug 3, 5:28 PM EDTSpecial Weather StatementOKX47 min
Aug 3, 5:31 PM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region119 min
Aug 3, 5:40 PM EDTAreal Flood AdvisoryOKXGreater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region3 hr
Aug 3, 5:17 AM EDTRip Current StatementOKXKings, Nassau, Queens, Suffolk4 days
Aug 3, 12:37 PM EDTFlood WatchOKXBronx, Kings, New York, Orange, Putnam, Queens and 3 more8 hr
Aug 3, 2:57 PM EDTSpecial Weather StatementOKXRockland48 min
Aug 3, 3:22 PM EDTSpecial Weather StatementOKXRockland38 min
Aug 3, 3:28 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester47 min
Aug 3, 3:46 PM EDTFlash Flood WarningOKXRockland, Westchester119 min
Aug 3, 3:46 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester44 min
Aug 3, 4:15 PM EDTSpecial Marine WarningOKX60 min
Aug 3, 4:29 PM EDTSpecial Marine WarningOKX61 min
Aug 3, 5:15 PM EDTSpecial Marine WarningOKX60 min
Aug 3, 5:17 PM EDTSpecial Weather StatementOKXBronx, New York43 min
Aug 3, 5:30 PM EDTSpecial Marine WarningOKX60 min
Aug 3, 6:07 PM EDTSpecial Marine WarningOKX53 min
Aug 3, 6:49 PM EDTSpecial Weather StatementOKXKings, Nassau, Queens41 min
Aug 3, 7:03 PM EDTSpecial Marine WarningOKX87 min

Nearby

Flash Flood Warnings in Connecticut, 2024Flash Flood Warnings in New York, 2024Every flash flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.