Alert archive / New York / Flash Flood Warnings in 2015

Flash Flood Warning 11, NWS Buffalo, NY

June 14, 2015Livingston County, Ontario County, New York

NWS Buffalo, NY issued this flash flood warning at Jun 14, 2015, 8:34 PM EDT for Livingston 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
Jun 14, 2015, 8:34 PM EDT (00:34 UTC)
Expired
Jun 14, 2015, 11:30 PM EDT
In force
3 hr
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Flood severity
None

Counties Livingston County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 112 km from the middle of the area, began a volume at 00:36 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 00:00Z, 0.6 hours before the alert went out and 109 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2015-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 71 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2015-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
71 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

292 
WGUS51 KBUF 150034
FFWBUF
NYC051-069-150330-
/O.NEW.KBUF.FF.W.0011.150615T0034Z-150615T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
834 PM EDT SUN JUN 14 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  EAST CENTRAL LIVINGSTON COUNTY IN WESTERN NEW YORK...

* UNTIL 1130 PM EDT
    
* AT 833 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN AGAIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BRISTOL...RUSHVILLE...HEMLOCK...HONEOYE...CANADICE...BRISTOL
  MOUNTAIN...COTTAGE CITY AND CHESHIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4268 7761 4287 7763 4284 7716 4276 7717
      4276 7731 4271 7735 4267 7736 4267 7737
      4264 7737

$$

WOOD
1 follow-up statement
200 
WGUS71 KBUF 150330
FFSBUF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1130 PM EDT SUN JUN 14 2015

NYC051-069-150335-
/O.EXP.KBUF.FF.W.0011.000000T0000Z-150615T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ONTARIO NY-LIVINGSTON NY-
1130 PM EDT SUN JUN 14 2015

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN ONTARIO AND EAST CENTRAL
LIVINGSTON COUNTIES WILL EXPIRE AT 1130 PM EDT...

THE HEAVY RAIN HAS ENDED...AND NEW FLASH FLOODING IS NO LONGER 
EXPECTED. HOWEVER...REMEMBER AN AREAL FLOOD WARNING REMAINS IN 
EFFECT FOR ONTARIO COUNTY... LIVINGSTON COUNTY... EASTERN WYOMING 
COUNTY... AND EXTREME SOUTH CENTRAL MONROE COUNTY. HIGH WATER 
REMAINS IN LOCATIONS THAT SAW SIGNIFICANT RAINFALL EARLIER...PLEASE 
USE CAUTION IN THE WARNED AREA.

LAT...LON 4268 7761 4287 7763 4284 7716 4276 7717
      4276 7731 4271 7735 4267 7736 4267 7737
      4264 7737

$$

CHURCH

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 2:57 PM EDTFlash Flood WatchBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 7 more13 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.