Alert archive / New York / Flash Flood Warnings in 2025
Flash Flood Warning 11, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Jun 18, 2025, 2:46 PM EDT for Allegany County, Livingston County, New York. It was in force for 95 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
- Jun 18, 2025, 2:46 PM EDT (18:46 UTC)
- Expired
- Jun 18, 2025, 4:21 PM EDT
- In force
- 95 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Allegany County, NY, Livingston County, NY
The radar
The Buffalo radar (KBUF), 93 km from the middle of the area, began a volume at 18:45 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.8 hours before the alert went out and 90 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
- 823 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
178
WGUS51 KBUF 181846
FFWBUF
NYC003-051-182300-
/O.NEW.KBUF.FF.W.0011.250618T1846Z-250618T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
246 PM EDT Wed Jun 18 2025
The National Weather Service in Buffalo has issued a
* Flash Flood Warning for...
Northern Allegany County in western New York...
Southwestern Livingston County in western New York...
* Until 700 PM EDT.
* At 246 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 1.5 inches of
rain have fallen. Additional rainfall amounts up 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.
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...
Alfred, Belfast, Cuba, Rushford, Houghton, Caneadea, Friendship,
Belmont, Angelica, Ossian, Canaseraga, Almond, West Almond,
Birdsall, Short Tract, Fillmore, Rossburg, Swain, Black Creek and
Ossian Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
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 4234 7773 4227 7774 4212 7830 4243 7830
4252 7804 4254 7772 4253 7772 4240 7773
FLASH FLOOD...RADAR INDICATED
$$
Brothers1 follow-up statement
768
WGUS71 KBUF 182021
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
421 PM EDT Wed Jun 18 2025
NYC003-051-182031-
/O.CAN.KBUF.FF.W.0011.000000T0000Z-250618T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Allegany NY-Livingston NY-
421 PM EDT Wed Jun 18 2025
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHERN ALLEGANY AND
SOUTHWESTERN LIVINGSTON COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 4234 7773 4227 7774 4212 7830 4243 7830
4252 7804 4254 7772 4253 7772 4240 7773
$$
BrothersThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 12:23 PM EDT | Flash Flood Warning | BUF | Cattaraugus, Erie | 4 hr |
| Jun 18, 12:41 PM EDT | Flash Flood Warning | BUF | Chautauqua | 4 hr |
| Jun 18, 2:17 PM EDT | Flash Flood Warning | BUF | Livingston, Monroe, Ontario | 4 hr |
| Jun 18, 3:09 PM EDT | Flash Flood Warning | BUF | Monroe, Wayne | 4 hr |
| Jun 18, 3:18 PM EDT | Flash Flood Warning | BUF | Ontario | 3 hr |
| Jun 18, 6:13 PM EDT | Areal Flood Warning | BUF | Livingston, Monroe, Ontario | 5 hr |
| Jun 18, 7:14 PM EDT | Areal Flood Warning | BUF | Monroe | 3 hr |
Nearby
Flash Flood Warnings in New York, 2025Every flash flood warning in 2025
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.