Alert archive / New Jersey / Flash Flood Warnings in 2026
Flash Flood Warning 28, NWS New York, NY
NWS New York, NY issued this flash flood warning at Jul 28, 2026, 10:50 PM EDT for Bergen County, Passaic County, New Jersey. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 28, 2026, 10:50 PM EDT (02:50 UTC)
- Expired
- Jul 29, 2026, 1:03 AM EDT
- In force
- 2 hr
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bergen County, NJ, Passaic County, NJ
The radar
The Philadelphia radar (KDIX), 123 km from the middle of the area, began a volume at 02:53 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 00:00Z, 2.8 hours before the alert went out and 127 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.
- Mixed-layer CAPE
- 325 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 775 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
458
WGUS51 KOKX 290250
FFWOKX
NJC003-031-290600-
/O.NEW.KOKX.FF.W.0028.260729T0250Z-260729T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
1050 PM EDT Tue Jul 28 2026
The National Weather Service in Upton has issued a
* Flash Flood Warning for...
Northwestern Bergen County in northeastern New Jersey...
Western Passaic County in northeastern New Jersey...
* Until 200 AM EDT.
* At 1050 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1 inch of rain
has fallen. The expected rainfall rate is 1 to 2 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...
West Milford, Ringwood, Pompton Lakes, Bloomingdale, Upper
Greenwood Lake, Oakland and Wanaque.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
If you are in a basement, be prepared to move to a higher floor.
&&
LAT...LON 4119 7438 4117 7429 4111 7416 4097 7428
4098 7428 4098 7430 4099 7429 4100 7430
4100 7431 4101 7434 4100 7435 4101 7436
4101 7439 4103 7442 4102 7443 4104 7443
4105 7445 4105 7447 4116 7442
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
DBR1 follow-up statement
925
WGUS71 KOKX 290503
FFSOKX
Flash Flood Statement
National Weather Service New York NY
103 AM EDT Wed Jul 29 2026
NJC003-031-290513-
/O.CAN.KOKX.FF.W.0028.000000T0000Z-260729T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bergen NJ-Passaic NJ-
103 AM EDT Wed Jul 29 2026
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN BERGEN AND
WESTERN PASSAIC COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 800 PM EDT Wednesday for
portions of northeast New Jersey and southeast New York.
A Flood Watch remains in effect until 800 PM EDT Wednesday for
portions of northeast New Jersey and southeast New York.
&&
LAT...LON 4119 7438 4117 7429 4111 7416 4097 7428
4098 7428 4098 7430 4099 7429 4100 7430
4100 7431 4101 7434 4100 7435 4101 7436
4101 7439 4103 7442 4102 7443 4104 7443
4105 7445 4105 7447 4116 7442
$$
JTWhat 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 Jul 28, 8:44 PM EDT, 2 hours 6 minutes earlier. Its key messages:
- 1) A band of heavy showers and thunderstorms will move through the area tonight into Wednesday morning, bringing the potential for flash flooding. Severe thunderstorms with damaging wind gusts will also be possible west of the Hudson River this evening. 2) There is a high risk of rip currents through Wednesday. (See Marine section below for discussion) 3) Potential for minor coastal flooding mid to late week with a coastal low.
Area forecast discussion, Jul 28, 8:44 PM EDT, 2 hours 6 minutes before
Area Forecast Discussion
National Weather Service New York NY
844 PM EDT Tue Jul 28 2026
.WHAT HAS CHANGED...
A Severe Thunderstorm Watch is in effect through 8pm tonight for NE
NJ as well as Orange and Rockland Counties. The Flood Watch has
been expanded eastward to include eastern Suffolk County and
New London County. The Rip Current Statement has been extended
through Wednesday for today for all ocean beaches.
&&
.KEY MESSAGES...
1) A band of heavy showers and thunderstorms will move through
the area tonight into Wednesday morning, bringing the potential
for flash flooding. Severe thunderstorms with damaging wind
gusts will also be possible west of the Hudson River this
evening.
2) There is a high risk of rip currents through Wednesday. (See
Marine section below for discussion)
3) Potential for minor coastal flooding mid to late week with a
coastal low.
&&
.DISCUSSION...
.KEY MESSAGE 1...
A broad area of low pressure with a triple point passes through the
forecast area tonight with support from a nearby upper low to our
north. Upward forcing from both features plus synoptic scale lift
from developing upper divergence combine with high moisture content.
This alone poses a threat of heavy rainfall with flash flooding, and
the threat will be enhanced by a wind profile through the mid levels
that supports back-building of and training of storm cells. Given
yesterday's rainfall, there is also some concern for river flooding.
River forecast points are not expected to go into flood, however a
couple are forecast to get pretty close to minor flooding
thresholds.
The period when flooding impacts are most likely will be during
the overnight. Impacts for the easternmost zones are most
likely tonight into Wednesday morning. With the surface low
nearby and the upper low overhead, the flooding threat continues
through the daytime Wednesday. The Flood Watch has remained
unchanged regarding its end time of 8pm Wednesday as confidence
in shortening its duration is not high enough - antecedent
rainfall plus slow moving cell potential with lingering
sufficient moisture content could lead to additional flash
flooding. After collaboration with WFO BOX, have decided to
include New London (and eastern Suffolk) Counties in the Flood
Watch. CAMS suggest a slowing eastern progression of cells with
a better chance of cell training tonight into Wednesday morning.
The WPC maintains a moderate risk (level 3/4) for portions of
the area through tonight with a slight risk elsewhere, then a
marginal to slight risk for Wednesday.
In general, an average of 2 to 4 inches is expected for
portions of northeast NJ, the Lower Hudson Valley and
southwestern CT. Isolated higher amounts are expected, with the
latest HREF PMM showing a max 5-7 in the Lower Hudson Valley
into NE NJ.
For the rest of the area, an average of 2 to 3 inches is forecast,
with isolated higher amounts possible. Peak hourly rainfall rates up
to 2 to 3 inches per hour are still anticipated. This is also
focused more on NE NJ into the Lower Hudson Valley, but can not be
ruled out anywhere in the area.
There is potential for some thunderstorms to become severe, mainly
for portions of northeast NJ into the Lower Hudson valley and NYC
metro. This is shown in SPC's latest Day 1 Convective Outlook. Shear
remains fairly weak, but decent instability could allow for an
isolated damaging wind threat with some collapsing storms. The
threat appears to end later this evening as the airmass
stabilizes some. A Severe Thunderstorm Watch is in effect
through 10 pm tonight for NE NJ as well as Orange and Rockland
Counties.
.KEY MESSAGE 2...
See Marine section for details on rip current risk.
.KEY MESSAGE 3...
A full moon occurs Wednesday morning and an onshore flow will be
preceding it. By the time the Wednesday evening high tide cycle
arrives, winds will be offshore or at least weakening in the process
of shifting offshore. This should offset or at least not
significantly contribute to tidal piling with astronomical high
tides. Therefore, not anticipating a high enough threat of minor
coastal flooding for an advisory. Perhaps a statement for isolated
minor flooding could be needed for the south shore back bay
locations of southern Nassau and Queens, but confidence in levels
touching minor are not high enough at this time for a statement
issuance.
&&
.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
A slow moving low pressure system will send a band of showers
and thunderstorms across the area tonight into Wednesday
morning. Thereafter, the coverage will likely become more scattered
in nature. The one exception though will be KGON where the
coverage and frequency will be higher on Wednesday.
MVFR/IFR conditions are forecast to develop and work from west
to east across the area overnight, likely coinciding with a band
of showers and thunderstorms. Eastern terminals may not go down
until 04-08Z. Lower conditions (IFR/LIFR) may be brief and
associated with heavy rain and/or TSRA. Expect gradual improvement
Wednesday for all except KGON which could remain IFR through
the day.
S/SE winds around 10 kt, with a few gust 15-20 kt at the
coastal terminals, will become light and variable for a time
late tonight as the band of showers passes through. Most
terminals will then veer to a light SW flow toward daybreak and
eventually take on a more northerly component at 10 kt or less
on Wednesday. However, KGON and KBDR are forecast to stay or
take on a E/SE flow with low pressure passing just south of
those locations. KGON may even see gusts up to 20 kt with the
gradient remaining a bit tighter during the day.
...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
Timing of showers and thunderstorms tonight into the morning
hours have been slower than forecast and the 00Z TAFs have
continued to follow that pattern.
In addition, winds will become a bit more uncertain late
tonight into Wednesday as low pressure tracks slowly across
the terminals.
Frequent amendments are likely during the TAF period.
.OUTLOOK FOR 00Z THURSDAY THROUGH SUNDAY...
Wednesday: Mostly MVFR improving to VFR by the afternoon
likely with showers. Thunderstorms and brief MVFR or lower
possible.
Thursday: MVFR or lower possible. Showers possible and a slight
chance of a thunderstorm. N-NW wind G15-20kt.
Friday: Mainly VFR, chance of an afternoon shower or tstm.
Saturday: Mainly VFR.
Sunday: Mainly VFR, chance of an afternoon shower or tstm.
Detailed information, including hourly TAF wind component forecasts,
can be found at: https:/www.weather.gov/zny/n90
&&
.MARINE...
A S/SE flow continues to increase this evening and a Small
Craft Advisory remains in effect for all waters. The flow peaks
tonight with 25 to 30 kt gusts. Ocean seas are expected to
build to 5 to 6 feet. SCA gusts still anticipated for the
eastern waters Wednesday morning, although there is a chance
that the SCA for central and eastern LI Sound and the eastern
bays could be canceled at some point during the morning. Have
extended the SCA on the ocean waters east of Moriches Inlet as
seas will be slow to subside with a lingering swell in spite of
lowering winds. Sub-SCA conditions then follow for the rest of
the forecast period.
Rip Currents...
The high rip current risk continues through Wednesday as well
due to lingering swell.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Flood Watch through Wednesday evening for CTZ005>012.
NY...Flood Watch through Wednesday evening for NYZ067>075-078>081-
176>179.
High Risk for Rip Currents through Wednesday evening for NYZ075-080-
081-178-179.
NJ...Flood Watch through Wednesday evening for NJZ002-004-006-
103>108.
MARINE...Small Craft Advisory until 2 PM EDT Wednesday for ANZ331-332-
340-353.
Small Craft Advisory until 6 AM EDT Wednesday for ANZ335-338-
345-355.
Small Craft Advisory until 6 PM EDT Wednesday for ANZ350.
&&
DISCUSSION...JC
AVIATION...DW
MARINE...JCHazardous weather outlook, Jul 28, 9:22 PM EDT, 1 hour 28 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service New York NY 922 PM EDT Tue Jul 28 2026 CTZ005>012-NJZ002-004-006-103>108-NYZ067>074-078-079-176-177-300130- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Southern New London-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)-Northwest Suffolk-Northeast Suffolk- Northern Queens-Northern Nassau- 922 PM EDT Tue Jul 28 2026 ...FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .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. .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. NYZ075-080-081-178-179-300130- Kings (Brooklyn)-Southwest Suffolk-Southeast Suffolk-Southern Queens- Southern Nassau- 922 PM EDT Tue Jul 28 2026 ...FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH WEDNESDAY EVENING... ...HIGH RIP CURRENT RISK IN EFFECT THROUGH WEDNESDAY EVENING... This Hazardous Weather Outlook is for southeast New York. .DAY ONE...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 Rip Current Risk. .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. 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. ANZ331-332-335-338-340-345-350-353-355-380-383-385-300130- 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- New York Harbor-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- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 922 PM EDT Tue Jul 28 2026 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. 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, Jul 28, 4:56 PM EDT, 5 hours 54 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
456 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0431 PM Flash Flood 1 SSE Ho-Ho-Kus 40.98N 74.09W
07/28/2026 Bergen NJ Dept of Highways
Flooding on NJ 17, 2 left lanes of 3 lanes
closed.
&&Local storm report, Jul 28, 5:38 PM EDT, 5 hours 12 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
538 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0522 PM Flash Flood 1 NNW Orange 40.78N 74.24W
07/28/2026 Essex NJ Dept of Highways
Flooding on 1-280 exit 9. All lanes closed.
&&Local storm report, Jul 28, 5:54 PM EDT, 4 hours 56 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
554 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0548 PM Flash Flood Teterboro Airport 40.87N 74.06W
07/28/2026 Bergen NJ Public
Flooding on NJ 17 with 2 lanes blocked.
&&Local storm report, Jul 28, 6:13 PM EDT, 4 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
613 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0403 PM Tstm Wnd Dmg Garwood 40.65N 74.33W
07/28/2026 Union NJ Utility Company
Tree contact on wire.
&&Local storm report, Jul 28, 6:20 PM EDT, 4 hours 30 minutes before
Preliminary Local Storm Report
National Weather Service New York NY
620 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0321 PM Tstm Wnd Dmg Mountainside 40.68N 74.37W
07/28/2026 Union NJ Utility Company
Trees on wire.
&&Local storm report, Jul 28, 6:49 PM EDT, 4 hours 1 minute before
Preliminary Local Storm Report
National Weather Service New York NY
649 PM EDT Tue Jul 28 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 PM Flash Flood Spring Valley 41.12N 74.04W
07/28/2026 Rockland NY Public
Video of several feet of water over car
tires at Memorial Park.
&&The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 10:47 PM EDT | Areal Flood Advisory | OKX | Essex, Hudson, Union | 8 min |
| Jul 28, 10:55 PM EDT | Flash Flood Warning | OKX | Essex, Hudson, Union | 3 hr |
| Jul 28, 11:04 PM EDT | Areal Flood Advisory | OKX | Bergen, Essex, Passaic | 10 min |
| Jul 28, 11:14 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Passaic | 4 hr |
| Jul 29, 3:15 AM EDT | Areal Flood Advisory | OKX | Bergen, Essex, Passaic | 3 hr |
| Jul 29, 3:58 AM EDT | River Flood Warning | OKX | Bergen | 7 hr |
Nearby
Flash Flood Warnings in New Jersey, 2026Every flash flood warning in 2026
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.