Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread southeast New York during the evening of September 1 and continued through the early morning hours of September 2. Rainfall totals ranged from 5-8 inches across much of the region, with much of that rain falling in just a few hours.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS OKX wrote it up.
Extremely heavy rainfall associated with the remnants of Hurricane Ida overspread southeast New York during the evening of September 1 and continued through the early morning hours of September 2. Rainfall totals ranged from 5-8 inches across much of the region, with much of that rain falling in just a few hours. The ASOS at Central Park recorded 7.19 inches of rain, including 3.15 inches in a single hour between approximately 9:00-10:00pm. This resulted in widespread catastrophic flash flooding across New York City that resulted in extensive road and subway closures and numerous water rescues. Additional rainfall totals from around the region include 7.38 inches at a New York Mesonet station in Fordham in the Bronx, a report of 7.00 inches from a CoCoRaHS observer in Boerum Hill, Brooklyn, 6.90 inches from the ASOS at LaGuardia Airport, a spotter report of 6.18 inches in Monroe, a spotter report of 8.09 inches in Scarsdale, and a CoCoRaHS report of 6.72 inches in Locust Valley. Ultimately 17 people died as a result of the flash flooding, including 13 in New York City and 4 in the Lower Hudson Valley.
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 Sep 1, 3:53 PM EST, 52 minutes earlier.
Area Forecast Discussion
National Weather Service New York NY
453 PM EDT Wed Sep 1 2021
.SYNOPSIS...
The remnants of Ida will pass through tonight with high pressure
building in behind the storm Thursday into Friday, lingering through
Saturday. A warm front will move north on Sunday, followed by a cold
front late Sunday night into Monday. High pressure may return
briefly late Monday. A cold front will then approach towards mid
week.
&&
.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
Steady rain spreads eastward across the area tonight as the center
of Ida's remnants shift through the forecast area. High moisture
content and plenty of upward forcing will lead to periods of heavy
rain. A flash flood watch remains in effect as flash flooding will
be likely, and significant flooding will be possible. See the
hydrology section below for more details.
The other concern is the threat for severe weather, primarily
high wind gusts. Helicity is currently being enhanced over
roughly the southern half of the forecast area near a warm front
as 0-1km storm-relative helicity values range from 100-300
m2/s2. CAPE is still relatively low, however it should rise a
bit as the center of the storm heads closer to us this evening.
A low risk of a tornado will therefore exist tonight.
NBM was used for temperatures.
&&
.SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/...
Chances of lingering showers remain east of the city Thursday
morning, with all of the forecast likely dry by noontime. High
pressure then builds in behind the storm with breezy conditions and
high temps mostly in the 70s. Continued dry Thursday night with
surface high pressure slowly building in. Cyclonic flow will still
remain aloft, and some guidance suggests a light shower possible
over the eastern half of the forecast area, but will continue with a
dry forecast for now.
&&
.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
A strong synoptic pressure gradient will exist between exiting
low pressure to the northeast and building high pressure to the
northwest to begin the day on Friday. Look for a breezy day on
Friday with mainly clear skies. Low level winds out of the north
will lead to much lower humidity. This should lead to an
excellent start to the weekend with seasonable temperatures and
comfortable humidity levels. High pressure settles over the area
Friday night into Saturday morning, before the high begins to
push offshore later Saturday into Saturday night. A warm front
off to the west and southwest will then lift northeast and get
through the area early on Sunday. This should put the region in
the warm sector into the day on Sunday leading to warmer
temperatures and an increase in humidity. A frontal boundary
will attempt to approach for late in the weekend. There remains
some uncertainty around the exact timing with this feature. A
chance to slight chance of some showers should cover the time
period of Sunday and Sunday night rather well. Northwestern
sections will see a slighter higher likelihood with any showers.
The front attempts to swing through by Monday morning.
After temperatures run a few degrees below normal for Friday
and Saturday, temperatures will then climb to slightly above
normal into Sunday and Monday of next week. Much of the global
guidance now is showing another quick moving system into Tuesday
as weak low pressure and its associated cold front approaches.
This may bring a few showers, and possibly a few thunderstorms
to the area later Tuesday.
&&
.AVIATION /21Z WEDNESDAY THROUGH MONDAY/...
The remnants of Ida approach from the southwest into this evening
and pass through the terminals tonight. The low quickly moves into
the Canadian Maritimes Thursday as high pressure begins to build to
the west.
Periodic -SHRA/+SHRA into early this evening with varying flight
categories, generally MVFR to VFR at times. This evening widespread
MVFR conditions expected with IFR possible at times, especially with
heavier showers and thunderstorms. LIFR is also a possibility.
Timing of thunderstorms is generally 22Z to 06Z. Showers end toward
10Z to 12Z, with MVFR. Conditions improve to VFR Thursday morning.
Winds NE 10 to 15 kt, with gusts up 20 kt developing. Some
uncertainty with wind direction for far southern terminals where
winds may have more of a southerly component this evening, depending
on the track of the remnants of Ida. Winds shift to N and NW late
tonight, increasing to around 15 kt with gusts 25 to 30 kt. Gusty N
to NW winds continue Thursday.
...Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
Timing of category changes is uncertain with timing differences of
around 2 hours possible. Also uncertainty with the timing, and
strength of convection late this afternoon into this evening. A
period of SE to S winds is possible early this evening. All the
uncertainties are in association of the movement of a warm front,
and the remnants of Ida.
.OUTLOOK FOR 18Z THURSDAY THROUGH MONDAY...
.Thursday afternoon...VFR with N-NW gusts 25-30 kt.
.Friday-Saturday...VFR.
.Sunday...Chc MVFR and shra.
Detailed information, including hourly TAF wind component forecasts,
can be found at: https:/www.weather.gov/zny/n90
&&
.MARINE...
The center of the remnants of Ida will be passing through the waters
during the overnight hours tonight with winds ramping up, and gale
force gusts likely across all waters. The center of the storm will
be off to the east by Thursday morning with N-NW winds in its wake.
Might need to trim back the end time of the gale warning as per
latest guidance, but will leave the end time unchanged for now.
Otherwise, seas will remain elevated up to advisory levels through
the day Thursday and into Thursday night. Advisory-level gusts will
be possible through at least the afternoon for most of the waters.
Marginal SCA conditions will persist into much of Friday out on the
ocean, otherwise conditions will continue to settle down into the
weekend. High pressure will settle over the waters Friday night into
Saturday leading to relatively tranquil conditions. By late Sunday
and into Sunday night a south to southwesterly flow will increase
resulting in marginal SCA conditions returning to the ocean waters
and possibly the eastern bays.
&&
.HYDROLOGY...
***SIGNIFICANT RAINFALL EXPECTED***
***FLASH FLOOD WATCH THIS MORNING INTO THURSDAY AFTERNOON***
An additional 2 to 5 inches, and possibly up to around 6 inches of
rain is expected tonight. The heaviest rainfall will likely be
before midnight to 3am for the western half of the forecast
area with the threat of heavy rainfall continuing toward
daybreak mainly east of the city thereafter. The higher amounts
will be generally across NE NJ, the Lower Hudson Valley, and
Southern Connecticut. Several rivers and streams are expected to
see minor to moderate flooding starting this evening, with
major flooding currently forecast for a few spots late tonight
and Thursday - including parts of the Saddle River in NE NJ, and
the Yantic River in SE CT. For urban areas, a significant
flooding threat exists tonight with impacts including the
potential for several road closures. Residual river flooding is
expected into at least Thursday night for the slower-
responding/larger rivers.
Mainly dry conditions take place for Friday and last through early
next week with no additional hydrologic impacts expected.
&&
.TIDES/COASTAL FLOODING...
A moderate risk of rip currents is expected Thursday and Friday for
the Atlantic Ocean beaches.
Some beach erosion and flooding is possible during the times of high
tide tonight into Thursday, with breaking surf building to 4 to 6 ft
and a strong e to w sweep. Dune impacts should be minor and limited.
Localized minor coastal flood impacts are possible for the most
vulnerable coastal locales, but overall it is a limited threat as 2
1/2 to 3 1/2 ft surge is needed Thu morning just for minor impacts.
The elevated water levels coinciding with heavy rain could
exacerbate flooding for coastal and tidally affected riverine
communities. A few locations in particular to keep an eye on for the
next few evening high tides is along Peconic Bay where an east-
northeast fetch may lead to minor coastal flooding, a Coastal Flood
Advisory is now in effect exclusively for Peconic Bay for this
evening's high tide due to elevated water tables.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Flash Flood Watch through Thursday afternoon for CTZ005>012.
NY...Flash Flood Watch through Thursday afternoon for NYZ067>075-
078>081-176>179.
Coastal Flood Advisory until 10 PM EDT this evening for NYZ079-
081.
NJ...Flash Flood Watch through Thursday afternoon for NJZ002-004-
006-103>108.
MARINE...Gale Warning until 2 PM EDT Thursday for ANZ331-332-340-345-
355.
Gale Warning until 10 AM EDT Thursday for ANZ335-338.
Gale Warning until 6 PM EDT Thursday for ANZ350-353.
&&
SYNOPSIS...JC/JE
NEAR TERM...JC
SHORT TERM...JC
LONG TERM...JE
AVIATION...MET
MARINE...JC/JE
HYDROLOGY...JC/JE
TIDES/COASTAL FLOODING...JC/FigHazardous Weather Outlook National Weather Service New York NY 445 AM EDT Wed Sep 1 2021 NJZ004-006-104>108-NYZ071>075-078>081-176>179-020845- Eastern Passaic-Hudson-Eastern Bergen-Western Essex-Eastern Essex- Western Union-Eastern Union-Southern Westchester- New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)- Northwest Suffolk-Northeast Suffolk-Southwest Suffolk- Southeast Suffolk-Northern Queens-Northern Nassau-Southern Queens- Southern Nassau- 445 AM EDT Wed Sep 1 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THURSDAY AFTERNOON... This Hazardous Weather Outlook is for northeast New Jersey and southeast New York. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, there will be potential for thunderstorms late this afternoon into tonight, some of which may become severe with damaging winds. A brief isolated tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .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. CTZ005>012-NJZ002-103-NYZ067>070-020845- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Southern New London-Western Passaic- Western Bergen-Orange-Putnam-Rockland-Northern Westchester- 445 AM EDT Wed Sep 1 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THURSDAY AFTERNOON... This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. In addition, there will be potential for thunderstorms late this afternoon into tonight, some of which may become severe with damaging winds. A brief isolated tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .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. ANZ331-332-340-345-355-020845- 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- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 445 AM EDT Wed Sep 1 2021 ...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 2 PM EDT THURSDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. In addition, there will be potential for thunderstorms late this afternoon into tonight, some of which may become severe with damaging winds. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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. ANZ335-338-020845- Long Island Sound West of New Haven CT/Port Jefferson NY- New York Harbor- 445 AM EDT Wed Sep 1 2021 ...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM EDT THURSDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. In addition, there will be potential for thunderstorms late this afternoon into tonight, some of which may become severe with damaging winds. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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. ANZ350-353-020845- Moriches Inlet NY to Montauk Point NY out 20 nm- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 445 AM EDT Wed Sep 1 2021 ...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM EDT THURSDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. In addition, there will be potential for thunderstorms late this afternoon into tonight, some of which may become severe with damaging winds. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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.
The Brookhaven radar (KOKX), 83 km away, was scanning. The volume nearest the first event began at 21:43 UTC.
75 flash flood. Local standard time, as filed.
All lanes were closed northbound due to flooding on the Saw Mill River Parkway between Marble Avenue (Exit 17) and Manville Road in Pleasantville.
Hardscrabble Road in Port Jervis was closed due to flooding.
Hyland Boulevard was closed between Nelson Avenue and Fieldway Avenue in Annadale due to flooding.
Victory Boulevard was closed near Richmond Avenue in the Bulls Head section of Staten Island due to flooding.
All lanes were closed due to flooding on the Bronx River Parkway northbound at East 172nd Street in Parkchester.
North Bridge Street (approach to the Outerbridge Crossing) in Tottenville was closed due to flooding.
All lanes were closed in both directions on the Cross County Parkway in Yonkers due to flooding.
All lanes were closed in both directions due to flooding on US 9 in the vicinity of West Clinton Avenue in Irvington.
Parkside Avenue in Flatbush was closed due to flooding.
Westbury Avenue was impassable at Glen Cove Road in Carle Place due to flooding.
Flash flooding resulted in an estimated $10 million in damages across Orange County, which includes $1 million in individual damages and $9 million in public assistance.
Elaine Place in Monsey was closed due to flooding.
The Bronx River Parkway was closed southbound in White Plains due to flooding.
Ashburton Avenue in Yonkers was closed near the Saw Mill River Parkway due to flooding.
Mountain Lodge Road in Washingtonville was closed due to flooding.
Flash flooding resulted in an estimated $60 million in damages across Staten Island, and an estimated $300 million city-wide. This estimate only includes FEMA and SBA fund requests.
Flash flooding resulted in an estimated $3,126,485 in damages across Rockland County. This estimate is based on FEMA grant money awarded under the Individuals and Household Program (IHP), which includes funds for both housing assistance and other needs.
Water was flooding into the basements of many homes in the Todt Hill section of Staten Island and sewer mains were overflowing.
Cars were stuck in flood waters at the intersection of Crystal Avenue and College Avenue in Westerleigh.
Widespread road closure along the Bronx River Parkway in Greenville due to flooding.
Numerous cars were underwater on the West Shore Expressway with occupants standing on roofs of cars waiting to be rescued.
Severe flooding was occurring on the Palisades Parkway between North Middletown Road (Exit 10) and New Hempstead Road (Exit 11) in New City.
The southbound Saw Mill River Parkway was flooded at Clarence Avenue in Hastings-on-Hudson.
NY 17M was closed in both directions due to flooding between South Street and Duck Farm Road in Goshen.
East Sunnyside Lane was flooded and impassable in Irvington with water more than a foot deep in spots. Widespread flooding was also occurring elsewhere in the village.
A 50 year old man, 48 year old woman, and 2 year old boy died when a basement apartment on 64th Street near Laurel Hill Boulevard in Elmhurst, Queens flooded.
Homes and basements were flooding on Woodbine Street in Ridgewood, Queens.
A basement was flooded in Howard Beach, Queens.
Queens Boulevard in Maspeth and Corona has about 2-4 feet of flowing water running across the street. Multiple cars were stranded.
One to two feet of water was covering the road with cars disabled in the roadway on 2nd Avenue between 59th Street and 60th Street in Bay Ridge, Brooklyn.
Several cars drove around barricades in Rye and are now stuck in flood waters.
The Bronx River at the New York Botanical Garden rose above its minor flood stage of 3.0 feet at 10:15pm EDT. It then continued to quickly rise, surpassing moderate flood stage (3.5 feet) at 10:45pm EDT and major flood stage (4.0 feet) at 11:30pm EDT. The river ultimately crested at a height of 5.59 feet at 8:45am EDT on September 2nd. It eventually fell back below minor flood stage at 9:30pm EDT on September 2nd.
Flash flooding resulted in an estimated $7,956,143 in damages across Nassau County. This estimate is based on FEMA grant money awarded under the Individuals and Household Program (IHP), which includes funds for both housing assistance and other needs.
All southbound lanes of the Harlem River Drive were closed due to flooding at West 166th Street in Washington Heights.
Flash flooding resulted in an estimated $60 million in damages across Manhattan, and an estimated $300 million city-wide. This estimate only includes FEMA and SBA fund requests.
Flood waters were up to the hoods of cars on Glen Avenue and Haseco Avenue in Port Chester.
A car was stuck in flood waters on Northern Boulevard in Manhasset.
Flooding was reported in a basement in Parkchester in the Bronx with water three feet deep.
Water was spilling into a home in Crown Heights through the doors as the ground drains became either overwhelmed or clogged. Two inches of water was in the basement.
Two women and a man died when their basement apartment flooded on Peck Avenue near Kissena Boulevard in Flushing, Queens.
A 33 year old man from the Bronx died when he drove his vehicle into flood waters on South Columbus Avenue in Mount Vernon and became trapped.
The body of a 69 year old man was found near Route 119 near the Mario Cuomo Bridge in Tarrytown not far from where his car was found submerged.
An elderly couple's vehicle was found pinned against a utility pole at the intersection of Lincoln Avenue and Brookside Way in Rye Brook. The couple are believed to have been swept away from their vehicle and down Blind Brook Creek and drowned.
The body of a man was found in Saxon Woods Park in White Plains after he exited his stranded car and was swept away by flood waters.
The Mahwah River near Suffern rose above its minor flood stage of 5.0 feet at 10:30pm EDT. It then continued to rise, surpassing moderate flood stage (7.0 feet) and cresting at a height of 7.06 feet at 12:30am EDT on September 2nd. The river then gradually fell through the overnight hours, receding below minor flood stage by 10:45am EDT on September 2nd.
Flash flooding resulted in an estimated $60 million in damages across the Bronx, and an estimated $300 million city-wide. This estimate only includes FEMA and SBA fund requests.
Flash flooding resulted in an estimated $92.6 million in damages across Westchester County. This estimate includes $78 million in FEMA individual assistance to property owners, renters, and businesses and an additional $14.6 million in damages to Westchester County government infrastructure.
The Hutchinson River Parkway was closed in both directions in Pelham due to flooding between the Cross County Parkway and I-95.
All eastbound lanes of the Grand Central Parkway were closed due to flooding at the Van Wyck Expressway in Jamaica, Queens.
Multiple basements were flooded in Eatons Neck.
Flooding was reported at the 28th Street subway station on 7th Avenue in Greenwich Village.
The basement of a home on Thorne Place in Rye was flooding.
Several cars were stranded in flood waters at the intersection of Bishop Avenue and Fenimore Road in Mamaroneck.
Water was entering a home in Jamaica, Queens.
The New York City Subway experienced flooding in many areas of the system and the MTA reported that service was extremely limited due to the flooding. This included reports of flooding at the Inwood-207th Street station (A line), excessive water on the tracks of the 2, 3, and 4 lines between Brooklyn and Manhattan, flooding of the N, R, and W lines in Manhattan and Queens, and major flooding at the 28th Street station on the 1, 2, and 3 lines in Chelsea. Service remained suspended on all but four lines at the start of the Thursday morning (September 2nd) rush. Overall the flooding resulted in an estimated $54 million in damage and repair costs to MTA infrastructure.
The wall of a basement apartment on 183rd Street near 90th Avenue in Jamaica, Queens collapsed due to flooding. A 43 year old woman and her 22 year old son were killed by the flood waters, while two others were rescued.
A 48 year old woman died when the basement of a home on Grand Central Parkway near the Horace Harding Expressway in Elmhurst flooded.
An 86 year old woman died when her basement apartment on 84th Street near 55th Road in Elmhurst, Queens flooded.
A 66 year old man died when his basement apartment on Ridgewood Avenue near Autumn Avenue in Cypress Hills, Brooklyn flooded.
The body of a man in his 40s was found floating in the Gowanus Canal near 25th Street and Third Avenue in Greenwood Heights, Brooklyn on Thursday, September 2nd.
An unidentified victim was found on the Grand Central Parkway near LaGuardia Airport inside a burned out car that had been rear ended. The fatality is believed to be flood related.
Flash flooding resulted in an estimated $60 million in damages across Queens, and an estimated $300 million city-wide. This estimate only includes FEMA and SBA fund requests.
Flash flooding resulted in an estimated $60 million in damages across Brooklyn, and an estimated $300 million city-wide. This estimate only includes FEMA and SBA fund requests.
The Northern State Parkway was closed westbound at Brush Hollow Road (Exit 34) in Westbury due to flooding.
Water was 2-3 feet deep on roadways in Fresh Meadows, Queens. Several cars were submerged.
Significant flooding was reported in Park Slope, Brooklyn with at least 2-4 feet of flowing water on the road. Several cars were stranded.
Route 202 was closed near Pine Grove Court in Yorktown Heights due to heavy flooding.
The Fire Department reported several homes with basement flooding in Eatons Neck.
Flash flooding resulted in an estimated $3,234,712 in damages across Suffolk County. This estimate is based on FEMA grant money awarded under the Individuals and Household Program (IHP), which includes funds for both housing assistance and other needs.
All lanes were closed due to flooding on the Major Deegan Expressway (I-87) northbound at Van Cortlandt Park South (Exit 11).
The Port Jefferson Fire Department responded to numerous water rescue emergencies in the town. Multiple occupants were rescued by the department's high water unit, with some occupants found on the roof of their vehicles or trapped inside floating vehicles. There was also a landslide on Dark Hollow Road, which left the road impassable with 4 feet of debris. Eight families were evacuated from their apartment building on that road due to unstable conditions of the land.
Flooding was reported on NY 440 southbound ramp to Arden Avenue in Fresh Kills. All lanes were closed.
The Bronx River Parkway was flooded southbound at East Gun Hill Road in Fordham. All lanes were blocked.
Flooding was reported on the eastbound ramp from the center tube of the Lincoln Tunnel to 36th Street in Greenwich Village. All lanes were closed.
All lanes were closed due to flooding on the Saw Mill River Parkway northbound at the Ashford Avenue ramp in Ardsley.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Flash Flood, Queens | 2021-09-01 | 2 | Male | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | 50 | Male | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | 48 | Female | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | Female | Permanent Home | Direct | |
| Flash Flood, Queens | 2021-09-01 | Female | Permanent Home | Direct | |
| Flash Flood, Queens | 2021-09-01 | Male | Permanent Home | Direct | |
| Flash Flood, Westchester | 2021-09-01 | 33 | Male | Vehicle/Towed Trailer | Direct |
| Flash Flood, Westchester | 2021-09-01 | 69 | Male | Vehicle/Towed Trailer | Direct |
| Flash Flood, Westchester | 2021-09-01 | 78 | Male | Vehicle/Towed Trailer | Direct |
| Flash Flood, Westchester | 2021-09-01 | 76 | Female | Vehicle/Towed Trailer | Direct |
| Flash Flood, Westchester | 2021-09-01 | Male | Outside/Open Areas | Direct | |
| Flash Flood, Queens | 2021-09-01 | 43 | Female | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | 22 | Male | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | 48 | Female | Permanent Home | Direct |
| Flash Flood, Queens | 2021-09-01 | 86 | Female | Permanent Home | Direct |
| Flash Flood, Kings | 2021-09-01 | 66 | Male | Permanent Home | Direct |
| Flash Flood, Kings | 2021-09-01 | Male | In Water | Indirect | |
| Flash Flood, Queens | 2021-09-01 | Vehicle/Towed Trailer | Indirect |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2021Every state in 2021This day in weather historyWarnings in New York, September 2021
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: 987406, 987412, 987414, 987417, 987420, 987422, 987426, 987428, 987429, 987430, 995046, 987431, 987433, 987434, 987437, 994925, 995042, 987452, 987454, 987457, 987461, 987516, 987517, 987576, 987555, 987564, 987579, 987577, 987522, 987518, 987519, 987623, 995038, 987533, 994927, 987521, 987526, 987552, 987580, 987588, and more.