Alert archive / New York / Flash Flood Warnings in 2000

Flash Flood Warning 14, NWS Buffalo, NY

August 7, 2000Allegany County, Cattaraugus County, New York

NWS Buffalo, NY issued this flash flood warning at Aug 7, 2000, 12:30 AM EDT for Allegany County, Cattaraugus County, New York. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 7, 2000, 12:30 AM EDT (04:30 UTC)
Expired: Aug 7, 2000, 6:30 AM EDT
In force: 6 hr
Issued by: NWS Buffalo, NY
Area: Whole counties

Counties Allegany County, NY, Cattaraugus County, NY

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 4.5 hours before the alert went out and 252 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2398 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 723 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 361 m²/s²
Significant tornado parameter: 3.8
Supercell composite: 24.1

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBUF 070432
FFWBUF
NYC003-009-071030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1230 AM EDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

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

* UNTIL 630 AM EDT

* AT 1230 AM EDT...THUNDERSTORMS WITH HEAVY RAIN HAVE BEEN MOVING EAST
  ACROSS THE SOUTHERN TIER OVER THE PAST SEVERAL HOURS. LOCALIZED 
  RAINFALL AMOUNTS OF THREE TO FOUR INCHES HAVE BEEN REPORTED. 
  ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE AREA
  BETWEEN 1 AM AND 4 AM. THESE THUNDERSTORMS WILL PRODUCE HEAVY 
  DOWNPOURS WITH LOCALIZED RAINFALL RATES OF UP TO 2 INCHES AN HOUR.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. 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.

LEVAN

1 follow-up statement

000 
RWUS32 KBUF 070733
FFSBUF

NYC003-009-071030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
330 AM EDT MON AUG 7 2000

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CATTARAUGUS AND ALLEGANY 
COUNTIES UNTIL 630 AM...

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE WESTERN 
SOUTHERN TIER THROUGH THE EARLY MORNING HOURS...ENDING BY 6AM.

LOCALIZED RAINFALL AMOUNTS OF UP TO FOUR INCHES HAVE FALLEN 
OVERNIGHT. WITH SOME FLOODING REPORTED IN DELEVAN...FREEDOM...
FILMORE AND SCIO. 

ADDITIONAL LOCALIZED RAINFALL AMOUNTS OF AN INCH OR TWO ARE POSSIBLE 
WITH THESE REMAINING THUNDERSTORMS THIS MORNING. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
  
BE ESPECIALLY CAUTIOUS BEFORE DAYBREAK...WHILE IT IS HARDER TO 
RECOGNIZE THE DANGERS OF FLASH FLOODS. 

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
BUFFALLO.

LEVAN

N

Nearby

Flash Flood Warnings in New York, 2000 Every 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.