Alert archive / New York / Flash Flood Warnings in 2026
Flash Flood Warning 18, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Sep 3, 2026, 8:47 PM EDT for Erie County, Wyoming County, New York. It was in force for 4 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
- Sep 3, 2026, 8:47 PM EDT (00:47 UTC)
- Expired
- Sep 4, 2026, 12:35 AM EDT
- In force
- 4 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Erie County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 23 km from the middle of the area, began a volume at 00:48 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.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 0.8 hours before the alert went out and 304 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
- 53 J/kg
- Mixed-layer CIN
- -217 J/kg
- Mixed-layer LCL
- 1296 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
292
WGUS51 KBUF 040047
FFWBUF
NYC029-121-040445-
/O.NEW.KBUF.FF.W.0018.260904T0047Z-260904T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
847 PM EDT Thu Sep 3 2026
The National Weather Service in Buffalo has issued a
* Flash Flood Warning for...
East Central Erie County in western New York...
Northwestern Wyoming County in western New York...
* Until 1245 AM EDT.
* At 847 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 2.5 inches of
rain have fallen. Additional rainfall amounts of 0.5 to 1 inch are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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...
Lancaster, Elma, Marilla, Bennington, Alden, Billington Heights,
Elma Center and Cowlesville.
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.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 4287 7846 4287 7830 4284 7827 4278 7825
4278 7864 4290 7871 4289 7862 4288 7855
4289 7851 4289 7846
FLASH FLOOD...RADAR INDICATED
$$
Thomas2 follow-up statements
058
WGUS71 KBUF 040228
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
1028 PM EDT Thu Sep 3 2026
NYC029-121-040445-
/O.CON.KBUF.FF.W.0018.000000T0000Z-260904T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Erie NY-Wyoming NY-
1028 PM EDT Thu Sep 3 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FRIDAY FOR
EAST CENTRAL ERIE AND NORTHWESTERN WYOMING COUNTIES...
At 1028 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Additional rainfall amounts of 0.25 to 0.5 inches are
possible in the warned area. Flash flooding is ongoing or expected to
begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Lancaster, Elma, Marilla, Bennington, Alden, Billington Heights,
Elma Center and Cowlesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 4287 7846 4287 7830 4284 7827 4278 7825
4278 7864 4290 7871 4289 7862 4288 7855
4289 7851 4289 7846
FLASH FLOOD...RADAR INDICATED
$$
DRT027
WGUS71 KBUF 040435
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
1235 AM EDT Fri Sep 4 2026
NYC029-121-040445-
/O.CAN.KBUF.FF.W.0018.000000T0000Z-260904T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Erie NY-Wyoming NY-
1235 AM EDT Fri Sep 4 2026
...FLASH FLOOD WARNING IS CANCELLED FOR EAST CENTRAL ERIE AND
NORTHWESTERN WYOMING COUNTIES...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4287 7846 4287 7830 4284 7827 4278 7825
4278 7864 4290 7871 4289 7862 4288 7855
4289 7851 4289 7846
$$
DRTThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 10:13 PM EDT | Flash Flood Warning | BUF | Erie, Livingston, Wyoming | 2 hr |
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.