Alert archive / New York / Flash Flood Warnings in 2003

Flash Flood Warning 6, NWS Buffalo, NY

July 27, 2003Chautauqua County, New York

NWS Buffalo, NY issued this flash flood warning at Jul 27, 2003, 1:09 PM EDT for Chautauqua 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
Jul 27, 2003, 1:09 PM EDT (17:09 UTC)
Expired
Jul 27, 2003, 4:00 PM EDT
In force
3 hr
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 91 km from the middle of the area, began a volume at 17:11 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 12:00Z, 5.2 hours before the alert went out and 91 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 12:00Z on 2003-07-27Temperature 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 12:00Z on 2003-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 square meters per square second.19395878Sfc1 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
916 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KBUF 271710
FFWBUF
NYC013-272000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
109 PM EDT SUN JUL 27 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 400 PM EDT

* AT 100 PM EDT...THE PUBLIC REPORTED VERY HEAVY RAIN AND FLOODING   
  OF CREEKS AND STREAMS IN WESTFIELD AND PORTLAND IN CHAUTAUQUA      
  COUNTY. OVER 2 AND A HALF INCHES OF RAIN HAS FALLEN IN THIS AREA   
  SINCE 1050 AM THIS MORNING...AND SHOWERS AND THUNDERSTORMS ARE     
  EXPECTED TO CONTINUE TO TRACK ACROSS THIS AREA THROUGH 230 PM.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. IF
YOU LIVE ALONG A STREAM OR CREEK ACT NOW TO PROTECT LIFE AND
PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF
UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE.

IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND
TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

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

LAT...LON 4224 7954 4211 7937 4234 7911 4245 7924

$$

JJR
2 follow-up statements
000 
WGUS71 KBUF 271832
FFSBUF
NYC013-272000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
232 PM EDT SUN JUL 27 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CONTINUED A FLASH FLOOD
WARNING FOR...
  CHAUTAUQUA COUNTY IN WESTERN NEW YORK

UNTIL 400 PM EDT

AS OF 225 PM THE HEAVIEST RAIN WAS FINALLY DRIFTING FURTHER SOUTH TO 
THE SOUTHERN PART OF THE COUNTY.  IT SHOULD CONTINUE TO MOVE QUICKLY 
FURTHER SOUTH INTO PENNSYLVANIA.  HOWEVER...AREAS AROUND 
WESTFIELD...BROCTON AND CASSADAGA RECEIVED 2 TO 3 INCHES OF RAIN IN 
ABOUT A 3 HOUR PERIOD.  ROAD FLOODING AND SMALL STREAMS OVER THEIR 
BANKS WAS REPORTED.  PROBLEMS WILL CONTINUE FOR AWHILE FROM THE 
HEAVY RAIN THAT HAS ALREADY FALLEN.  BY 4 PM IMPROVEMENT IS 
EXPECTED.  UNTIL THEN...ANYONE TRAVELING THROUGH THAT PART OF THE 
COUNTY SHOULD BE ALERT TO FLOOD DANGERS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. IF
YOU LIVE ALONG A STREAM OR CREEK ACT NOW TO PROTECT LIFE AND
PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF
UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE.

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

$$

SAGE
000 
WGUS71 KBUF 271958
FFSBUF
NYC013-272015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
353 PM EDT SUN JUL 27 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR CHAUTAUQUA COUNTY 
IN WESTERN NEW YORK HAS BEEN CANCELLED...

THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS 
WERE BEGINNING TO RECEDE...ENDING THE FLASH FLOOD THREAT. EVEN 
THOUGH STREAMS AND CREEKS ARE RECEDING...SOME ROADWAYS STILL MAY BE 
COVERED WITH WATER. YOU SHOULD AVOID DRIVING THROUGH FLOODED 
ROADWAYS.  THE HEAVIEST RAINS FELL IN THE BROCTON...WESTFIELD AND 
CASADAGA AREAS.

$$

SAGE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 10:15 AM EDTSpecial Marine WarningBUF60 min
Jul 27, 4:08 PM EDTSpecial Marine WarningBUF52 min
Jul 27, 4:42 PM EDTSpecial Marine WarningBUF63 min
Jul 27, 5:44 PM EDTSpecial Marine WarningBUF46 min
Jul 27, 6:06 PM EDTSpecial Marine WarningBUF54 min

Nearby

Flash Flood Warnings in New York, 2003Every flash flood warning in 2003

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.