Alert archive / New York / Flash Flood Warnings in 2015
Flash Flood Warning 21, NWS Buffalo, NY
NWS Buffalo, NY issued this flash flood warning at Jul 18, 2015, 5:35 AM EDT for Livingston County, Monroe County, Ontario County, New York. It was in force for 3 hr. 1 report 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
- Jul 18, 2015, 5:35 AM EDT (09:35 UTC)
- Expired
- Jul 18, 2015, 8:30 AM 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), 93 km from the middle of the area, began a volume at 09:37 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 |
|---|---|---|---|
| Jul 18, 7:45 AM EDT | HEAVY RAIN 1.33 | 4 Sse Pittsford, NY | 24 HOUR RAINFALL. |
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 00:00Z, 9.6 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
- 117 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 322 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
113
WGUS51 KBUF 180935
FFWBUF
NYC051-055-069-181230-
/O.NEW.KBUF.FF.W.0021.150718T0935Z-150718T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
535 AM EDT SAT JUL 18 2015
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN ONTARIO COUNTY IN WESTERN NEW YORK...
NORTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK...
SOUTHERN MONROE COUNTY IN WESTERN NEW YORK...
* UNTIL 830 AM EDT
* AT 533 AM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO AN INCH AND A HALF OF
RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GENEVA...CANANDAIGUA...HENRIETTA...AVON...VICTOR...HONEOYE FALLS...
BRISTOL AND CALEDONIA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
&&
LAT...LON 4286 7794 4295 7793 4295 7791 4304 7791
4305 7792 4307 7757 4305 7737 4304 7737
4304 7728 4300 7697 4283 7698
$$
TMAThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:37 AM EDT | Special Weather Statement | BUF | Genesee, Monroe | 38 min |
| Jul 18, 4:16 AM EDT | Flash Flood Warning | BUF | Genesee, Monroe, Orleans, Wayne | 3 hr |
| Jul 18, 5:03 AM EDT | Special Weather Statement | BUF | Ontario | 42 min |
| Jul 18, 6:25 AM EDT | Special Weather Statement | BUF | Livingston | 35 min |
| Jul 18, 7:00 AM EDT | Flash Flood Warning | BUF | Ontario | 3 hr |
| Jul 18, 3:43 PM EDT | Flash Flood Watch | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 8 more | 29 hr |
Nearby
Flash Flood Warnings in New York, 2015Every flash flood warning in 2015
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.