Alert archive / New York / Flash Flood Warnings in 2024
Flash Flood Warning 14, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Aug 9, 2024, 11:14 AM EDT for Allegany County, New York. It was in force for 6 hr. 2 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
- Aug 9, 2024, 11:14 AM EDT (15:14 UTC)
- Expired
- Aug 9, 2024, 5:08 PM EDT
- In force
- 6 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Flood severity
- None
County Allegany County, NY
The radar
The Buffalo radar (KBUF), 117 km from the middle of the area, began a volume at 15:15 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 |
|---|---|---|---|
| Aug 9, 12:00 PM EDT | FLASH FLOOD | Andover, NY | Water rescues in Andover. |
| Aug 9, 12:00 PM EDT | FLASH FLOOD | Whitesville, NY | Water rescues in Whitesville. |
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, 3.2 hours before the alert went out and 113 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
- 167 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
027
WGUS51 KBUF 091514
FFWBUF
NYC003-091915-
/O.NEW.KBUF.FF.W.0014.240809T1514Z-240809T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
1114 AM EDT Fri Aug 9 2024
The National Weather Service in Buffalo has issued a
* Flash Flood Warning for...
Southeastern Allegany County in western New York...
* Until 315 PM EDT.
* At 1114 AM EDT, Doppler radar indicated heavy rain across the
warned area. Between 3 and 4 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 heavy rain.
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, Whitesville, Andover, Almond, Stannards and Paynesville.
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 4233 7773 4232 7774 4227 7774 4225 7774
4222 7774 4218 7774 4216 7774 4214 7774
4213 7774 4211 7775 4200 7775 4200 7783
4200 7791 4210 7790 4235 7773
FLASH FLOOD...RADAR INDICATED
$$
DRT2 follow-up statements
982
WGUS51 KBUF 091639
FFWBUF
NYC003-092115-
/O.EXT.KBUF.FF.W.0014.000000T0000Z-240809T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
1239 PM EDT Fri Aug 9 2024
...FLASH FLOOD EMERGENCY FOR WHITESVILLE AND ANDOVER...
The National Weather Service in Buffalo has extended the
* Flash Flood Warning for...
Southeastern Allegany County in western New York...
* Until 515 PM EDT.
* At 1239 PM EDT, emergency management reported water rescues within
the heavy rain across the warned area. Between 4 and 4.5 inches of
rain have fallen. Additional rainfall amounts up to 0.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
This is a FLASH FLOOD EMERGENCY for Whitesville and Andover. This
is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!
HAZARD...Life threatening flash flooding. Heavy rain producing
flash flooding.
SOURCE...Emergency management reported.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Alfred, Whitesville, Andover, Almond, Stannards and Paynesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
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 4218 7774 4216 7774 4214 7774 4213 7774
4212 7774 4211 7775 4200 7775 4200 7791
4210 7790 4234 7773 4233 7773 4232 7774
4222 7774
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
DRT127
WGUS71 KBUF 092108
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
508 PM EDT Fri Aug 9 2024
NYC003-092118-
/O.CAN.KBUF.FF.W.0014.000000T0000Z-240809T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Allegany NY-
508 PM EDT Fri Aug 9 2024
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN ALLEGANY
COUNTY...
Flood waters are receding. No new flooding is expected. Please
continue to heed remaining road closures.
&&
LAT...LON 4218 7774 4216 7774 4214 7774 4213 7774
4212 7774 4211 7775 4200 7775 4200 7791
4210 7790 4234 7773 4233 7773 4232 7774
4222 7774
$$
DRTThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:45 AM EDT | Small Craft Advisory | BUF | 71 hr | |
| Aug 9, 8:42 AM EDT | Areal Flood Warning | BUF | Allegany | 6 hr |
| Aug 9, 9:56 AM EDT | Areal Flood Warning | BUF | Allegany, Livingston, Monroe, Ontario, Wayne | 9 hr |
| Aug 9, 10:49 AM EDT | Special Weather Statement | BUF | Erie | 56 min |
| Aug 9, 11:55 AM EDT | Special Weather Statement | BUF | Erie | 50 min |
| Aug 9, 12:22 PM EDT | Flash Flood Warning | BUF | Ontario | 4 hr |
| Aug 9, 12:55 PM EDT | Areal Flood Warning | BUF | Cayuga, Oswego | 8 hr |
| Aug 9, 1:25 PM EDT | Special Weather Statement | BUF | Cayuga | 35 min |
| Aug 9, 1:41 PM EDT | Flash Flood Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 4 hr |
| Aug 9, 1:43 PM EDT | Wind Advisory | BUF | Jefferson, Lewis, Oswego | 5 hr |
| Aug 9, 1:52 PM EDT | Areal Flood Warning | BUF | Jefferson, Lewis, Oswego | 8 hr |
| Aug 9, 2:51 PM EDT | Flash Flood Warning | BUF | Jefferson, Oswego | 4 hr |
| Aug 9, 3:00 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 60 min |
| Aug 9, 3:50 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 85 min |
| Aug 9, 4:56 PM EDT | Beach Hazards Statement | BUF | Cayuga, Chautauqua, Erie, Jefferson, Monroe, Niagara and 3 more | 60 hr |
Nearby
Flash Flood Warnings in New York, 2024Every flash flood warning in 2024
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.