Alert archive / New York / Flash Flood Warnings in 2004

Flash Flood Warning 16, NWS Buffalo, NY

May 25, 2004Livingston County, Ontario County, New York

NWS Buffalo, NY issued this flash flood warning at May 25, 2004, 8:35 PM EDT for Livingston County, Ontario County, New York. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 25, 2004, 8:35 PM EDT (00:35 UTC)
Expired
May 25, 2004, 10:30 PM EDT
In force
115 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

Counties Livingston County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 88 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 84 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 2004-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBUF 260035
FFWBUF
NYC051-069-260230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
835 PM EDT TUE MAY 25 2004

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 1030 PM EDT

* AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS PRODUCING HEAVY RAIN OVER SOUTHERN LIVINGSTON AND 
  NORTHERN ALLEGANY COUNTIES...MOVING NORTHEAST AT 20 MPH.

* THE THUNDERSTORM PRODUCING FLASH FLOODING WILL BE NEAR...
  CONESUS AT 850 PM EDT...
  HEMLOCK AT 905 PM EDT...
  HONEOYE AT 915 PM EDT...
  BRISTOL MOUNTAIN AT 925 PM EDT...
  BRISTOL AT 935 PM EDT...

THESE STORMS WILL BE CAPABLE OF PRODUCING LOCALIZED RAINFALL OF AN 
INCH TO TWO INCHES OF RAIN IN AN HOUR.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 4264 7801 4252 7783 4276 7734 4288 7742

$$

TMA
1 follow-up statement
000 
WGUS71 KBUF 260152
FFSBUF
NYC051-069-260230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
951 PM EDT TUE MAY 25 2004

...THE FLASH FLOOD WARNING FOR LIVINGSTON AND ONTARIO COUNTIES IS
CANCELLED...

AT 951 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE 
THUNDERSTORMS WITH HEAVY RAIN HAD MOVED EAST OF THE AREA. THE 
RUNOFF FROM THESE STORMS HAS ALSO SUBSIDED. THEREFORE...THE FLASH 
FLOOD WARNING HAS BEEN CANCELLED. 

AT 910 PM EDT...THE LIVINGSTON COUNTY SHERIFF REPORTED FLOODING IN 
THE MOUNT MORRIS AREA AS THESE THUNDERSTORMS MOVED THROUGH.

LAT...LON 4264 7801 4252 7783 4276 7734 4288 7742

$$

TMA

Nearby

Flash Flood Warnings in New York, 2004Every flash flood warning in 2004

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.