Alert archive / New York / Flash Flood Warnings in 2000

Flash Flood Warning 4, NWS Buffalo, NY

June 15, 2000Allegany County, Cattaraugus County, New York

NWS Buffalo, NY issued this flash flood warning at Jun 15, 2000, 1:00 AM EDT for Allegany County, Cattaraugus County, New York. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 15, 2000, 1:00 AM EDT (05:00 UTC)
Expired
Jun 15, 2000, 3:00 AM EDT
In force
2 hr
Issued by
NWS Buffalo, NY
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Allegany County, NY, Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 94 km from the middle of the area, began a volume at 05:00 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, 5.0 hours before the alert went out and 92 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 2000-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1812 joules per kilogram.LCLEL10008507005003002001001 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 2000-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 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
1812 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1511 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.6
Supercell composite
10.4

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBUF 150501
FFWBUF
NYC003-009-150700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
100 AM EDT THU JUN 15 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALLEGANY COUNTY IN WESTERN NEW YORK
  CATTARAUGUS COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE CITIES OF...OLEAN...SALAMANCA...WELLSVILLE

* UNTIL 300 AM EDT

* AT 100 AM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS WITH VERY HEAVY RAIN OVER WARREN AND MCKEAN COUNTIES 
  OF NORTHWEST PENNSYLVANIA. THESE STORMS WERE MOVING NORTHEAST AT   
  45 MPH.

* THESE STORMS WILL REACH SALAMANCA BY 115 AM AND SPREAD ACROSS
  MOST OF EASTERN AND SOUTHERN CATTARAUGUS COUNTY...AND ALL OF       
  ALLEGANY COUNTY BY 200 AM.

THIS AREA HAS RECEIVED EXCESSIVE RAINS DURING THE LAST 48 HOURS 
WHICH HAVE LEFT SOILS SATURATED. ADDITIONAL HEAVY RAIN COULD 
CAUSE FLASH FLOODING OF CREEKS AND STREAMS...ROADS AND ROADSIDE 
CULVERTS. THE HEAVY RAINS COULD ALSO TRIGGER ROCK AND MUDSLIDES IN 
STEEP TERRAIN.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BUFFALO.

LAT...LON 4194 7909 4181 7893 4234 7771 4249 7858

MCLAUGHLIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 11:10 PM EDTSevere Thunderstorm WarningBUFChautauqua60 min
Jun 15, 4:50 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego55 min

Nearby

Flash Flood Warnings in New York, 2000Every flash flood warning in 2000

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.