Alert archive / New York / Flash Flood Warnings in 2025
Flash Flood Warning 12, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Jun 18, 2025, 3:09 PM EDT for Monroe County, Wayne County, New York. It was in force for 4 hr. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 18, 2025, 3:09 PM EDT (19:09 UTC)
- Expired
- Jun 18, 2025, 7:15 PM EDT
- In force
- 4 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Monroe County, NY, Wayne County, NY
The radar
The Buffalo radar (KBUF), 112 km from the middle of the area, began a volume at 19:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 3:12 PM EDT | RAIN 0.85 | Rochester Airport, NY | ROC ASOS reported 0.85 inches in 14 minutes. |
| Jun 18, 3:20 PM EDT | FLASH FLOOD | Rochester, NY | Numerous reports of flooded roads and flooded underpasses in Rochester. |
| Jun 18, 3:20 PM EDT | RAIN 1.44 | Rochester Airport, NY | ROC ASOS reported 1.44 inches in 22 minutes. |
| Jun 18, 3:55 PM EDT | FLASH FLOOD | 3 Sse Gates-North Gates, NY | Brooks Ave., road closed due to flooding. |
| Jun 18, 4:45 PM EDT | FLASH FLOOD | 4 Se Marion, NY | Several roads flooded and basements around the area. |
| Jun 18, 5:27 PM EDT | FLASH FLOOD | 2 Wsw Henrietta, NY | I-90 at exit 46 flooded. |
| Jun 18, 6:30 PM EDT | RAIN 3.82 | 1 Ene Henrietta, NY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.2 hours before the alert went out and 110 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.
112
WGUS51 KBUF 181909
FFWBUF
NYC055-117-182315-
/O.NEW.KBUF.FF.W.0012.250618T1909Z-250618T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
309 PM EDT Wed Jun 18 2025
The National Weather Service in Buffalo has issued a
* Flash Flood Warning for...
Central Monroe County in western New York...
Wayne County in western New York...
* Until 715 PM EDT.
* At 309 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.75 and 1.5 inches of
rain have fallen. 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. Heavy
rainfall and flash flooding will impact the evening
commute around Rochester.
* Some locations that will experience flash flooding include...
Rochester, Irondequoit, Chili, East Rochester, Fairport, Brighton,
Gates-North Gates, Henrietta, Penfield, Newark, Marion, Lyons,
Palmyra, Clyde, Scottsville, Churchville, Walworth, Riga, Rose and
Savannah.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles. Be aware of your surroundings and do not
drive on flooded roads.
&&
LAT...LON 4320 7758 4317 7732 4321 7672 4302 7671
4301 7713 4304 7713 4303 7737 4306 7737
4300 7791 4312 7789 4319 7775
FLASH FLOOD...RADAR INDICATED
$$
Brothers2 follow-up statements
895
WGUS71 KBUF 181925
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
325 PM EDT Wed Jun 18 2025
NYC055-117-182315-
/O.CON.KBUF.FF.W.0012.000000T0000Z-250618T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monroe NY-Wayne NY-
325 PM EDT Wed Jun 18 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT THIS
EVENING FOR CENTRAL MONROE AND WAYNE COUNTIES...
At 325 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 0.75 and 1.5 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses. Heavy
rainfall and flash flooding will impact the evening
commute around Rochester.
Some locations that will experience flash flooding include...
Rochester, Irondequoit, Chili, East Rochester, Fairport, Brighton,
Gates-North Gates, Henrietta, Penfield, Newark, Marion, Lyons,
Palmyra, Clyde, Scottsville, Churchville, Walworth, Riga, Rose and
Savannah.
Rochester Airport reported just under an inch of rainfall in 20
minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles. Be aware of your surroundings and do not
drive on flooded roads.
&&
LAT...LON 4320 7758 4317 7732 4321 7672 4302 7671
4301 7713 4304 7713 4303 7737 4306 7737
4300 7791 4312 7789 4319 7775
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Brothers204
WGUS71 KBUF 182314
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
714 PM EDT Wed Jun 18 2025
NYC055-117-182324-
/O.EXP.KBUF.FF.W.0012.000000T0000Z-250618T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monroe NY-Wayne NY-
714 PM EDT Wed Jun 18 2025
...FLASH FLOOD WARNING AT 715 PM EDT THIS EVENING FOR CENTRAL MONROE
COUNTY HAS BEEN REPLACED WITH A FLOOD WARNING...
...FLASH FLOOD WARNING WILL EXPIRE AT 715 PM EDT THIS EVENING FOR
WAYNE COUNTY...
While the thunderstorms that produced this afternoon's heavy rain
and the threat of flash flooding have ended, areas of lingering
flooding will persist into this evening.
&&
LAT...LON 4315 7737 4314 7737 4306 7737 4300 7791
4301 7791 4302 7790 4303 7790 4312 7789
4319 7775 4320 7758 4318 7738 4316 7737
$$
JJRThe 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, 2:46 PM EDT | Flash Flood Warning | BUF | Allegany, Livingston | 95 min |
| 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.