Alert archive / New York / Flash Flood Warnings in 2018
Flash Flood Warning 13, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Aug 8, 2018, 11:54 AM EDT for Livingston County, Monroe County, Ontario County, New York. It was in force for 3 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
- Aug 8, 2018, 11:54 AM EDT (15:54 UTC)
- Expired
- Aug 8, 2018, 2:27 PM EDT
- In force
- 3 hr
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Livingston County, NY, Monroe County, NY, Ontario County, NY
The radar
The Buffalo radar (KBUF), 107 km from the middle of the area, began a volume at 15:56 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, 3.9 hours before the alert went out and 104 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
- 204 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
728
WGUS51 KBUF 081554
FFWBUF
NYC051-055-069-081900-
/O.NEW.KBUF.FF.W.0013.180808T1554Z-180808T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
1154 AM EDT WED AUG 8 2018
The National Weather Service in Buffalo has issued a
* Flash Flood Warning for...
Northeastern Livingston County in western New York...
Southeastern Monroe County in western New York...
Northwestern Ontario County in western New York...
* Until 300 PM EDT.
* At 1154 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is expected to
begin shortly.
* Some locations that will experience flooding include...
Canandaigua, Victor, Honeoye Falls, Bristol, Lima, Bloomfield,
Farmington and Mendon.
This includes the following highways...
Interstate 390 between exits 10 and 11.
Interstate 90 between exits 45 and 43.
LAT...LON 4284 7770 4303 7769 4304 7737 4303 7725
4304 7725 4304 7722 4283 7719
$$
Apffel2 follow-up statements
843
WGUS71 KBUF 081735
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
135 PM EDT WED AUG 8 2018
NYC051-055-069-081900-
/O.CON.KBUF.FF.W.0013.000000T0000Z-180808T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Livingston NY-Monroe NY-Ontario NY-
135 PM EDT WED AUG 8 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM EDT FOR
NORTHEASTERN LIVINGSTON...SOUTHEASTERN MONROE AND NORTHWESTERN
ONTARIO COUNTIES...
At 133 PM EDT, heavy rain has moved out of the areas, however radar
estimates over 2 inches of rain has fallen across the warning area.
Additional flash flooding is possible from rising waters along small
creeks in the warned area.
Some locations that will experience flooding include...
Canandaigua, Victor, Honeoye Falls, Bristol, Lima, Bloomfield,
Farmington and Mendon.
This includes the following highways...
Interstate 390 between exits 10 and 11.
Interstate 90 between exits 45 and 43.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4284 7770 4303 7769 4304 7737 4303 7725
4304 7725 4304 7722 4283 7719
$$
Apffel439
WGUS71 KBUF 081827
FFSBUF
Flash Flood Statement
National Weather Service Buffalo NY
227 PM EDT WED AUG 8 2018
NYC051-055-069-081837-
/O.CAN.KBUF.FF.W.0013.000000T0000Z-180808T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Livingston NY-Monroe NY-Ontario NY-
227 PM EDT WED AUG 8 2018
...THE FLASH FLOOD WARNING FOR NORTHEASTERN LIVINGSTON...SOUTHEASTERN
MONROE AND NORTHWESTERN ONTARIO COUNTIES IS CANCELLED...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 4284 7770 4303 7769 4304 7737 4303 7725
4304 7725 4304 7722 4283 7719
$$
ApffelThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:36 AM EDT | Special Weather Statement | BUF | Cattaraugus | 39 min |
| Aug 8, 7:03 AM EDT | Special Marine Warning | BUF | 117 min | |
| Aug 8, 8:09 AM EDT | Severe Thunderstorm Warning | BUF | Erie | 66 min |
| Aug 8, 9:07 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 53 min |
| Aug 8, 10:10 AM EDT | Special Weather Statement | BUF | Genesee | 50 min |
| Aug 8, 11:03 AM EDT | Special Weather Statement | BUF | Ontario | 57 min |
| Aug 8, 7:25 PM EDT | Small Craft Advisory | BUF | 6 hr |
Nearby
Flash Flood Warnings in New York, 2018Every flash flood warning in 2018
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.