Alert archive / New York / Flash Flood Warnings in 2026
Flash Flood Warning 13, NWS Binghamton, NY
NWS Binghamton, NY issued this flash flood warning at Jul 4, 2026, 4:07 PM EDT for Cayuga County, Onondaga County, Seneca County, New York. It was in force for 61 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
- Jul 4, 2026, 4:07 PM EDT (20:07 UTC)
- Expired
- Jul 4, 2026, 5:08 PM EDT
- In force
- 61 min
- Issued by
- NWS Binghamton, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cayuga County, NY, Onondaga County, NY, Seneca County, NY
The radar
The Binghamton radar (KBGM), 90 km from the middle of the area, began a volume at 20:08 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.1 hours before the alert went out and 170 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
- 233 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
507
WGUS51 KBGM 042007
FFWBGM
NYC011-067-099-042315-
/O.NEW.KBGM.FF.W.0013.260704T2007Z-260704T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Binghamton NY
407 PM EDT Sat Jul 4 2026
The National Weather Service in Binghamton has issued a
* Flash Flood Warning for...
Cayuga County in central New York...
Southern Onondaga County in central New York...
Northwestern Seneca County in central New York...
* Until 715 PM EDT.
* At 407 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 1.5 inches of
rain has already fallen. 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...
Syracuse, Auburn, Seneca Falls, Waterloo, Pompey, Manlius, Owasco,
Fleming, Otisco, Skaneateles, Marcellus, Union Springs, Niles,
Tully, Cayuga, Fabius, Melrose Park, Throopsville, La Fayette and
Canoga.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4287 7698 4287 7696 4298 7696 4301 7593
4280 7591 4278 7626 4281 7653 4284 7697
FLASH FLOOD...RADAR INDICATED
$$
Kistner1 follow-up statement
760
WGUS71 KBGM 042108
FFSBGM
Flash Flood Statement
National Weather Service Binghamton NY
508 PM EDT Sat Jul 4 2026
NYC011-067-099-042118-
/O.CAN.KBGM.FF.W.0013.000000T0000Z-260704T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cayuga NY-Onondaga NY-Seneca NY-
508 PM EDT Sat Jul 4 2026
...FLASH FLOOD WARNING IS CANCELLED FOR CAYUGA, SOUTHERN ONONDAGA
AND NORTHWESTERN SENECA COUNTIES...
The heavy rain has moved out of the warned area and flooding is no
longer expected to pose a threat.
&&
LAT...LON 4287 7698 4287 7696 4298 7696 4301 7593
4280 7591 4278 7626 4281 7653 4284 7697
$$
KistnerWhat 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 Binghamton, NY wrote its last area forecast discussion before this flash flood warning went out at Jul 4, 2:43 PM EDT, 1 hour 24 minutes earlier. Its key messages:
- 1) Thunderstorms are expected to develop once again this afternoon, bringing a threat of gusty winds to the Southern Tier and southward. 2) A weak, but deepening surface low passes south of the region Sunday evening into Monday, with widespread rain and cooler conditions expected to start the week. 3) Upper level ridge moves west, with more seasonable temperatures this week into next weekend along with several chances of showers and thunderstorms.
Area forecast discussion, Jul 4, 2:43 PM EDT, 1 hour 24 minutes before
Area Forecast Discussion National Weather Service Binghamton NY 243 PM EDT Sat Jul 4 2026 .WHAT HAS CHANGED... Increased coverage of precipitation chances this evening and into tonight. && .KEY MESSAGES... 1) Thunderstorms are expected to develop once again this afternoon, bringing a threat of gusty winds to the Southern Tier and southward. 2) A weak, but deepening surface low passes south of the region Sunday evening into Monday, with widespread rain and cooler conditions expected to start the week. 3) Upper level ridge moves west, with more seasonable temperatures this week into next weekend along with several chances of showers and thunderstorms. && .DISCUSSION... KEY MESSAGE 1... Clouds have mostly cleared early this afternoon allowing for heating to take place across the Southern Tier and northward. NEPA has been sunny for much of the day and has warmed into the 90s though dew points are mixing down a bit. Wind shear is slightly stronger today than yesterday, though the better shear is north across the I-90 corridor. There is some uncertainty across CNY where the shear is given the clouds and more limited heating but cooling cloud tops over Lake Ontario indicating that may be it wont take much instability to get storms to fire. Across the Southern Tier and south, mesoanalysis is indicating better mid level lapse rates despite the less shear, and DCAPE is about the same as yesterday, over 1000 J/kg. Downburst and Microburst are the main concern as tall cores collapse. Some of the CAMs show a cold pool developing which could make a more widespread wind threat across NEPA. This is a more likely scenario given that we are on the edge of the large upper level ridge with storm coverage likely greater than what models have. KEY MESSAGE 2... The evolution of storms and rainfall today will help set the stage for potential flash flood risk Sunday evening into Monday. A broad, weak low moves slowly through the region with scattered showers and thunderstorms accompanying it. With the upper level ridge retrograding and surface high pressure across New England, an axis of stronger convergence is likely across portions of southern NY or Northern PA. HREF Probability Matched Means are indicating some higher end rainfall of 3 to 4 inches in 12 to 24 hours. This seems reasonable given forecast soundings show favorable winds for training (especially along that axis of convergence), and warm cloud depths 11K to 13K feet. Heavy rain today, especially in areas that could get 1 to 2 inches of rain, would be more susceptible to the flash flood risk so a flood watch may be issued if the rain is widespread enough. KEY MESSAGE 3... The upper level ridge retrogrades to the west later this weekend and builds out west. Temperatures will be closer to average to slightly above, with surface dew points falling back into the 60s. This time of year, we do need to watch this northwest flow pattern. We are still close to the edge of the ridge, with decent low level moisture/instability each afternoon. Shear will be higher being closer to the jet stream so any shortwave that passes through could bring a threat for severe weather. Also, potential ridge riding MCSs would be possible under this flow. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... Unsettled conditions this afternoon and evening as a cold front brings showers and thunderstorms to the region. Coverage, timing and the locations impacted remain uncertain, but mainly expecting the timing to be 19/20Z until 0/01Z. These storms could produce brief IFR conditions with gusty and erratic winds. Later tonight, IFR fog will be possible, but the duration and thickness of the fog will be dependent upon where heavy rain from thunderstorms fall. At AVP, fog is more uncertain, so left it out of the forecast at this time. Outlook: Sunday afternoon through Monday...Restrictions possible due to showers and possibly thunderstorms. Tuesday...Mainly VFR with a chance for showers and isolated thunderstorms. Wednesday...Mainly VFR with a low chance for showers, mainly at ELM, BGM, and AVP. Thursday...Restrictions possible with a passing frontal system producing more widespread showers and thunderstorms. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...Heat Advisory until 8 PM EDT this evening for PAZ044-047. NY...None. && DISCUSSION...AJG AVIATION...ES/MPK
Hazardous weather outlook, Jul 4, 3:31 PM EDT, 36 minutes before
Hazardous Weather Outlook National Weather Service Binghamton NY 331 PM EDT Sat Jul 4 2026 NYZ015>018-022>025-036-044>046-055>057-062-PAZ038>040-043-048-072- 051945- Yates-Seneca-Southern Cayuga-Onondaga-Steuben-Schuyler-Chemung- Tompkins-Madison-Cortland-Chenango-Otsego-Tioga-Broome-Delaware- Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming-Pike- Southern Wayne- 331 PM EDT Sat Jul 4 2026 ...SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL 11 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .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. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ009-037-051945- Northern Oneida-Southern Oneida- 331 PM EDT Sat Jul 4 2026 This Hazardous Weather Outlook is for central 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. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. PAZ044-047-051945- Lackawanna-Luzerne- 331 PM EDT Sat Jul 4 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 459 IN EFFECT UNTIL 11 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast Pennsylvania. .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. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about severe weather to the NWS.
In the hours before
Local storm report, Jul 4, 12:47 PM EDT, 3 hours 20 minutes before
Preliminary Local Storm Report
National Weather Service Binghamton NY
1247 PM EDT Sat Jul 4 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0452 PM Tstm Wnd Dmg 1 SE Johnson City 42.11N 75.94W
07/03/2026 Broome NY Public
Tree down at the residence on the corner of
Tracy Street and Lake Ave in Binghamton.
&&
MPKThe office that day
Everything else NWS Binghamton, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 2:20 AM EDT | Special Weather Statement | BGM | Steuben | 40 min |
| Jul 4, 3:34 PM EDT | Severe Thunderstorm Warning | BGM | Cayuga, Cortland, Onondaga, Seneca, Tompkins | 71 min |
| Jul 4, 4:27 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Cortland, Madison | 63 min |
| Jul 4, 5:19 PM EDT | Severe Thunderstorm Warning | BGM | Chenango, Delaware, Otsego | 56 min |
| Jul 4, 6:19 PM EDT | Severe Thunderstorm Warning | BGM | Delaware, Sullivan | 41 min |
| Jul 4, 6:39 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 51 min |
| Jul 4, 7:07 PM EDT | Severe Thunderstorm Warning | BGM | Sullivan | 24 min |
Nearby
Flash Flood Warnings in New York, 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.