New York, 2024

Flash Flooding in New York, January 9 to 10, 2024

January 9 to 10, 2024 · NWS OKX · 4 events in 1 county or zone

A large low pressure system impacted the area late on January 9th and into the 10th with long duration persistent moderate to heavy rainfall. In addition to widespread river flooding, some localized areas of flash flooding occurred as the heaviest rainfall associated with convection moved through.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS OKX wrote it up.

A large low pressure system impacted the area late on January 9th and into the 10th with long duration persistent moderate to heavy rainfall. In addition to widespread river flooding, some localized areas of flash flooding occurred as the heaviest rainfall associated with convection moved through. Precipitable water values of 1.2-1.4 inches were record levels for early January. The anomalous moisture and heavy rainfall resulted in a widespread 2 - 4 inches of rainfall, much of it occurring over a several hour timeframe before the cold frontal passage.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jan 9, 10:22 PM EST, 1 hour 34 minutes earlier.

Area forecast discussion, Jan 9, 10:22 PM EST, 1 hour 34 minutes before
Area Forecast Discussion...CORRECTED
National Weather Service New York NY
1022 PM EST Tue Jan 9 2024

.SYNOPSIS...
Deepening low pressure over the Upper Midwest tracks into the
eastern Great Lakes tonight, sending a strong frontal system
across the area. The low pressure system slowly moves across
Southeast Canada Wednesday into Wednesday night. Low pressure
slowly moves within Southeastern Canada Thursday and Thursday
night. Another strong low pressure system will likely bring
heavy rain and high winds to the area Friday night and Saturday.
Arctic high pressure builds toward the region Saturday night
into Sunday. Another low may affect the region Monday and
Tuesday.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
HIGH IMPACT EVENT WITH HIGH WINDS AND FLOODING TONIGHT INTO
WEDNESDAY.

- High wind warning remains in effect for all coastal areas
including NYC, Long Island, Connecticut, Southern Westchester, and
Hudson NJ.

- Wind advisory remains in effect for inland areas.

- Storm warning for all forecast waters.

- Flood watch remains in effect for the entire region.

The forecast is still on track with little change in the
forecast expected as the height of the storm system is now
impacting the region. Strong low pressure pushes across the
Great Lakes late this evening, with a secondary low pressure
developing along the Appalachians and moving northeast quickly
with an associated warm front. The warm front lifts up from the
south across the area over the next few hours, followed by a
strong cold front later in the overnight into early Wednesday
morning.

Rainfall amounts with this storm are expected to bring a widespread
2-4 inches, with 1.5 inches already reported in some areas of
NE NJ and the Lower Hudson Valley. Thus the main flooding threat
lingers across inland areas on Wednesday after the bulk of rain
ends due to forecast of elevated rivers and streams above
respective flood stages. The NYC and Long Island part of the
flood watch only goes until Noon on Wednesday but for the rest
of the region goes until 6PM Wednesday evening.

For details with flooding, see hydrology section.

Coastal flooding is expected for tonight and Wednesday mornings high
tides. The highest of the total water levels is expected to be
Wednesday morning. Coastal flood warnings, advisories and statements
are in effect.

For details with coastal flooding, see tides/coastal flooding
section.

High wind warning and wind advisory remain in effect for the
entire region. The main concern with the winds will be a low
level jet maximum of near 100 kt at a height of around 4-8 kft.
Model sounding BUFKIT profiles do not depict a strong
inversion, as the thermal profiles appear to be close to
isothermal. Radar estimated winds just 1-2kft above the surface
are shown to be reach 50-70 kt, with some 80 kt winds at around
1500 ft for eastern coastal sections. Much of this should get
mixed down to the surface through downward momentum transport.
The timeframe for this generally between now and 8-9Z Wednesday.
Currently watching fine lines working up from the south and
southwest from NJ, so if this convective activity holds this
would represent more downward momentum transfer and a damaging
wind threat.

Also, increasing omega and an increasing southerly flow throughout
the troposphere increase the PWATS to well above 90th
percentile climatology values overnight. Models still conveying
PWAT values topping out at 1.4-1.5 inches maximum overnight into
the coastal parts of the region. With some elevated instability
across eastern parts of the region, can not rule out a few
isolated rumbles of thunder with a few positive lightning
strikes already noticed offshore to the S and SE. This has lined
up with the CAMs near term forecast.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...
The storm system lifts northeast of the region on Wednesday into
Wednesday night with the cold front pushing east of the region.

An upper level trough will remain over the region on Wednesday,
which may result in some additional rain showers from time to time
on Wednesday. By Wednesday night, the upper trough lifts north
with drier conditions expected. Pressure gradient will remain
tight on Wednesday and will begin to relax Wednesday night.
Gusty westerly flow on Wednesday will be below advisory
thresholds but a localized isolated gust or two to near 45 to 50
mph cannot be ruled out. Most gusts are expected on Wednesday
to be in the range of near 30 to 40 mph. Gusts will continue to
diminish Wednesday night.

Highs on Wednesday will be in the middle 40s to lower 50s, with
highs Thursday in the 40s.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
Another strong storm likely impacts the region late Friday into
Saturday with another round of moderate to heavy rainfall, and
strong, to potentially damaging winds, along with a coastal flooding
threat.

Another southern stream trough will be moving onshore of the Pacific
northwest midweek and track across the country, reaching toward the
Great Lakes Region late in the week. With some of the global
guidance the upper trough is becoming more negatively tilted during
Friday, keeping the surface low a little farther to the west. Timing
of the heaviest rainfall and highest winds remains Friday night into
Saturday as a low level jet of 50-70kts moves through the region.
Also, an occluded low will be moving over the region late Friday
night into Saturday morning. Strong lift, and some instability,
along with elevated CAPE up to 500 J/kg will allow for a chance of
thunderstorms. Precipitable waters also increases late Friday night,
up to 1.35 inches, and a period of moderate to heavy rainfall
remains possible. The is the potential for another flooding event as
WPC has placed most of the area in a slight risk for excessive
rainfall. Finally, with the strong winds another high wind event is
also becoming more likely. While there are a few days until the
onset of this storm impacts are becoming more likely.

Strong cold advection Saturday, behind a cold front, will be the
leading edge of an Arctic airmass that will be over the region
Sunday into Monday, with temperatures falling to near or just below
seasonal normals.

After a brief dry period another southern stream system may impact
the region Monday into Tuesday.

&&

.AVIATION /03Z WEDNESDAY THROUGH SUNDAY/...
***Major Storm System to Impact Terminals Through Tonight***

Deepening low pressure over the Midwest tracks into the Eastern
Great Lakes tonight, sending a strong frontal system across the
area. This is a high impact event with strong winds and heavy rains
now taking place.

Brief LIFR is possible at a few terminals for a few hours, but will
not be the rule, but rather the exception. Otherwise IFR prevails at
most terminals. IFR and MVFR prevails up until the start of the
morning push for the city terminals, with VFR returning by 10z. VFR
conditions will prevail on Wednesday, with a few brief showers which
may briefly result in non-prevailing MVFR ceilings for the mid to
late morning.

SE winds have ramped up reaching 25-30 G45-50kt late this evening,
with the highest at the coastal terminals. These high winds will
take place until the cold frontal passage, which will be from west
to east from approximately 08Z to 11Z. There could be a brief lull
in the winds as the front moves through. Post-frontal WSW winds on
Wednesday 15-22G30-35kt, with possibly a few higher gusts,
especially for the afternoon.

A few isolated thunderstorms remain possible over the next several
hours, mainly for eastern terminals.

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

Amendments may be needed for changing flight categories.

A few gusts above 50kt will be possible until 08Z. Highest potential
for higher gusts is at KJFK.

Isolated thunderstorm possible overnight.

OUTLOOK FOR 0Z THURSDAY THROUGH SUNDAY...

Wednesday night: VFR. WSW winds 15-20G30kt, subsiding to 10-15G20kt
as winds gradually decrease later at night.

Thursday: VFR. WSW winds 10-15kt with gusts near 20kt.

Friday: VFR early, becoming MVFR or lower with rain. Increasing SE
winds late.

Friday Night: MVFR or lower. SE winds 15-25kt G30-40kt.

Saturday: MVFR or lower with rain. SE winds 20-30kt G30-40 kt,
becoming W 20-25kt G30-35kt.

Sunday...VFR. W 20-25kt G30-35kt.

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

&&

.MARINE...
Winds on the area waters will quickly ramp up early this
evening to gales, then to storm force gusts for tonight. Ocean
seas build to 14 to 20 ft tonight into early Wednesday.

Gales are likely Wednesday into Wednesday night, eventually
subsiding to SCA level wind gusts late Wednesday night. Ocean
seas will remain elevated well above SCA thresholds Wednesday
through Wednesday night.

Marginal SCA wind gusts remain possible on the non-ocean waters
Thursday as a strong westerly flow diminishes, and during Thursday
evening gusts fall below advisory levels. Meanwhile, the ocean
waters will have on-going SCA conditions Thursday with winds and
seas diminishing west to east during Thursday night. An increasing
southeast flow ahead of the next strong low will allow for gale
conditions to develop Friday night across the forecast waters. There
is a chance of storm force gusts on the ocean waters Saturday into
Saturday night as gale condition continue on the non-ocean waters.
Gales are likely behind the low Sunday, with conditions gradually
improving Sunday night as high pressure builds toward the waters
from the southwest.

&&

.HYDROLOGY...
Flood watch remains in effect for the entire forecast region from
6PM tonight to 6PM Wednesday for NE NJ, Lower Hudson Valley and
Southern CT. Flood watch remains in effect for NYC and Long Island
6PM tonight until 12PM Wednesday.

WPC has moderate risk for much of the area for Northeast NJ,
Lower Hudson Valley and Southern CT with NYC and Long Island in
a slight risk for excessive rain for this afternoon through
tonight.

A major storm system will bring a total of 2 to 3.5 inches of
rain with locally higher amounts this afternoon into early
Wednesday. The bulk of the heaviest rain will occur tonight.
Some GFS ensemble members indicating possible 4+ inches of
rainfall across some parts of Southern Connecticut.

There will be potential for widespread urban and poor drainage
flooding as well as river and stream flooding. The river and
stream flooding would potentially linger through the day
Wednesday and potentially into Thursday.

Hourly rainfall rates will generally remain between a half to three
quarters of an inch. An isolated area of 1 inch per hour of rainfall
rate is possible but will be quite brief in duration.

Some rivers in NJ are forecast to reach moderate to major flooding
levels.

Hydrologic impacts remain possible Friday night into Saturday, as
the Weather Prediction Center has much of the area in a slight risk
for excessive rainfall, with another round of moderate to heavy rain
possible. One to two inches, with locally higher amounts remains
possible. However, the exact magnitude and extent of the flooding
issues are uncertain this far out.

&&

.TIDES/COASTAL FLOODING...
Significant ocean dunefront damage expected Wednesday.
Widespread minor to moderate coastal flooding with Wed AM high
tide. Localized major coastal flooding will be possible,
especially within the South Shore Bays of Long Island.

NY HOPS Steven Institute surge models actually have went back up
compared to 24 hours ago in terms of the total water level
forecasts.

SE storm force expected tonight into early Wednesday, with a
windshift to west southwest gale likely just before the time of
high tide for most areas. This windshift will likely limit
potential for locally major coastal flooding to just the Great
South Bay of LI. Elsewhere, widespread moderate flooding likely
for southern bays of NYC/LI and eastern bays of LI, and SE CT.
Elsewhere generally minor flooding.

Minor coastal flooding possible for the southern bays of W LI,
and along W LI Sound this evening as E/SE increase towards gale
force.

Along the oceanfront, potential for 15-20 ft surf causing
widespread dune erosion and scattered overwashes Wed AM.
Localized dune inundation/breaches possible where dunes have
been compromised by earlier storm events. 10 to 15 ft breaking
surf expected with Wed PM high tide, and with lower water
levels, expect dune impacts to be lower magnitude and less
widespread.

Coastal flood impacts are possible around the times of high
tide Friday night and Saturday with another deep low tracking
west of the area.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Flood Watch through Wednesday afternoon for CTZ005>012.
     Wind Advisory until 6 AM EST Wednesday for CTZ005>007.
     High Wind Warning until 6 AM EST Wednesday for CTZ008>012.
     Coastal Flood Advisory until noon EST Wednesday for CTZ009-010.
     Coastal Flood Warning from 6 AM to noon EST Wednesday for
     CTZ011-012.
NY...Flood Watch through Wednesday afternoon for NYZ067>071.
     Wind Advisory until 6 AM EST Wednesday for NYZ067>070.
     High Wind Warning until 6 AM EST Wednesday for NYZ071>075-
     078>081-176>179.
     Coastal Flood Advisory until noon EST Wednesday for NYZ071-078-
     177.
     Coastal Flood Advisory from 5 AM to 10 AM EST Wednesday for
     NYZ072-074-075.
     Flood Watch through Wednesday morning for NYZ072>075-078>081-
     176>179.
     Coastal Flood Warning until 1 PM EST Wednesday for NYZ079>081-
     179.
     Coastal Flood Warning from 4 AM to 10 AM EST Wednesday for
     NYZ178.
NJ...Flood Watch through Wednesday afternoon for NJZ002-004-006-
     103>108.
     Wind Advisory until 6 AM EST Wednesday for NJZ002-004-103>108.
     High Wind Warning until 6 AM EST Wednesday for NJZ006.
     Coastal Flood Advisory from 5 AM to 10 AM EST Wednesday for
     NJZ006-104-106-108.
MARINE...Storm Warning until 6 AM EST Wednesday for ANZ331-332-335-338-
     340-345-350-353-355.

&&

SYNOPSIS...BC/MET
NEAR TERM...BC/JE/MET
SHORT TERM...BC
LONG TERM...MET
AVIATION...JE
MARINE...BC/MET
HYDROLOGY...BC/MET
TIDES/COASTAL FLOODING...
Hazardous weather outlook, Jan 9, 4:01 PM EST, 7 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service New York NY
401 PM EST Tue Jan 9 2024

CTZ005>007-NJZ002-004-103-105-107-NYZ067>070-101130-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Western Passaic-Eastern Passaic-Western Bergen-Western Essex-
Western Union-Orange-Putnam-Rockland-Northern Westchester-
401 PM EST Tue Jan 9 2024

...WIND ADVISORY IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...

This Hazardous Weather Outlook is for southern Connecticut,
northeastern New Jersey and southeastern 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.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NJZ104-106-108-101130-
Eastern Bergen-Eastern Essex-Eastern Union-
401 PM EST Tue Jan 9 2024

...WIND ADVISORY IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 AM TO 10 AM EST
WEDNESDAY...

This Hazardous Weather Outlook is for northeastern New Jersey.

.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.
   Wind Advisory.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Advisory.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NJZ006-101130-
Hudson-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 AM TO 10 AM EST
WEDNESDAY...

This Hazardous Weather Outlook is for northeastern New Jersey.

.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.
   High Wind Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Advisory.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

CTZ009-010-NYZ071-101130-
Southern Fairfield-Southern New Haven-Southern Westchester-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO NOON
EST WEDNESDAY...

This Hazardous Weather Outlook is for southern Connecticut and
southeastern 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.
   High Wind Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Advisory.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

CTZ008-101130-
Northern New London-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...

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.

   Flood Watch.
   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NYZ073-176-101130-
Bronx-Northern Queens-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

This Hazardous Weather Outlook is for southeastern 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.
   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NYZ072-074-075-101130-
New York (Manhattan)-Richmond (Staten Island)-Kings (Brooklyn)-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 AM TO 10 AM EST
WEDNESDAY...

This Hazardous Weather Outlook is for southeastern 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.
   High Wind Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Advisory.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NYZ079>081-179-101130-
Northeast Suffolk-Southwest Suffolk-Southeast Suffolk-
Southern Nassau-
401 PM EST Tue Jan 9 2024

...COASTAL FLOOD WARNING IN EFFECT UNTIL 1 PM EST WEDNESDAY...
...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

This Hazardous Weather Outlook is for southeastern 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.

   Coastal Flood Warning.
   Flood Watch.
   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Coastal Flood Warning.
   Flood Watch.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NYZ178-101130-
Southern Queens-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...
...COASTAL FLOOD WARNING IN EFFECT FROM 4 AM TO 10 AM EST
WEDNESDAY...

This Hazardous Weather Outlook is for southeastern 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.
   High Wind Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Warning.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

NYZ078-177-101130-
Northwest Suffolk-Northern Nassau-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO NOON
EST WEDNESDAY...

This Hazardous Weather Outlook is for southeastern 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.
   High Wind Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Advisory.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

CTZ011-012-101130-
Southern Middlesex-Southern New London-
401 PM EST Tue Jan 9 2024

...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...
...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON...
...COASTAL FLOOD WARNING IN EFFECT FROM 6 AM TO NOON EST WEDNESDAY...

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.

   Flood Watch.
   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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

   Flood Watch.
   Coastal Flood Warning.

For Friday night into Saturday, strong to damaging winds as well as
areas of flooding will be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

ANZ331-332-335-340-345-101130-
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-
Long Island Sound West of New Haven CT/Port Jefferson NY-
Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
401 PM EST Tue Jan 9 2024

...STORM WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...

This Hazardous Weather Outlook is for the Long Island Sound and the
Long Island bays.

.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.

   Storm Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Gale force wind gusts possible Friday night through Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

ANZ338-350-353-355-101130-
New York Harbor-Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
401 PM EST Tue Jan 9 2024

...STORM WARNING IN EFFECT UNTIL 6 AM EST WEDNESDAY...

This Hazardous Weather Outlook is for the Atlantic coastal waters and
New York Harbor.

.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.

   Storm Warning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Gale force wind gusts possible Friday night through Sunday, with a
chance of storm force gusts on the ocean waters Friday night into
Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely 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.

In the hours before

Local storm report, Jan 9, 11:00 PM EST, 56 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1100 PM EST Tue Jan 9 2024

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

1039 PM     Flood            3 S Washingtonville     41.39N 74.17W
01/09/2024                   Orange             NY   Dept of Highways

            Flooding on NY 208 both directions south of
            Clover Road. All lanes closed.

&&
Local storm report, Jan 9, 11:02 PM EST, 54 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1102 PM EST Tue Jan 9 2024

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

1040 PM     Non-Tstm Wnd Gst 1 S Mamaroneck          40.92N 73.73W
01/09/2024  M64 MPH          ANZ335             NY   Mesonet

            Mesonet station XLAR Larchmont Harbor
            measured a 64 mph wind gust at 40 feet.

&&
Local storm report, Jan 9, 11:17 PM EST, 39 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1117 PM EST Tue Jan 9 2024

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

1100 PM     Non-Tstm Wnd Gst 2 NNE Bayside           40.81N 73.76W
01/09/2024  M59 MPH          ANZ335             NY   Buoy

            Buoy station KPTN6 Kings Point measured a 59
            mph wind gust.

&&
Local storm report, Jan 9, 11:26 PM EST, 30 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1126 PM EST Tue Jan 9 2024

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

1120 PM     Flood            1 W Orangeburg          41.05N 73.96W
01/09/2024                   Rockland           NY   Dept of Highways

            Tree down on Palisades Interstate Parkway
            southbound at West Orangeburg Road.

&&
Local storm report, Jan 9, 11:27 PM EST, 29 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1127 PM EST Tue Jan 9 2024

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

1119 PM     Non-Tstm Wnd Dmg 3 S Yorktown Heights    41.23N 73.78W
01/09/2024                   Westchester        NY   Dept of Highways

            Tree down and road closure on NY 129 both
            directions at Saw Mill River road.

&&
Local storm report, Jan 9, 11:28 PM EST, 28 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
1128 PM EST Tue Jan 9 2024

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

1120 PM     Non-Tstm Wnd Dmg 1 W Orangeburg          41.05N 73.96W
01/09/2024                   Rockland           NY   Dept of Highways

            Corrects previous flood report from 1 W
            Orangeburg. Tree down on Palisades
            Interstate Parkway southbound at West
            Orangeburg Road.

&&

The radar

The Brookhaven radar (KOKX), 75 km away, was scanning. The volume nearest the first event began at 04:58 UTC.

Open the radar archive at this moment

Event by event

4 flash flood. Local standard time, as filed.

Flash Flood, Nassau

When
January 9, 11:56 PM EST to January 10, 12:26 AM EST
Where
Nassau County, 0.87 mi SW of Valley Stream to 0.79 mi WSW of Valley Stream
Cause
Heavy Rain
Reported by
Public
Coordinates
40.660, -73.710

Flower Road near Forest Road Elementary school closed due to flooding.

Flash Flood, Nassau

When
January 10, 12:11 AM EST to 12:41 AM EST
Where
Nassau County, 1.78 mi S of Munsey Park to 1.7 mi W of East Williston
Cause
Heavy Rain
Reported by
Public
Coordinates
40.755, -73.686

Marcus Avenue closed due to flooding in Manhasset Hills.

Flash Flood, Nassau

When
January 10, 12:18 AM EST to 12:48 AM EST
Where
Nassau County, 0.76 mi WSW of Nassau Shrs to 0.8 mi SE of Arlyn Oaks
Cause
Heavy Rain
Reported by
Public
Coordinates
40.668, -73.444

Block Blvd closed in East Massapequa due to flooding.

Flash Flood, Nassau

When
January 10, 12:38 AM EST to 1:08 AM EST
Where
Nassau County, 0.87 mi SE of Great Neck to 0.41 mi SE of Great Neck
Cause
Heavy Rain
Reported by
Public
Coordinates
40.770, -73.710

Horace Harding Expressway service road closed due to flooding.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New York in 2024Every state in 2024This day in weather historyWarnings in New York, January 2024

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1154983, 1154985, 1154988, 1154989.