Alert archive / New York / Flash Flood Warnings in 1991

Flash Flood Warning 2, NWS Buffalo, NY

April 22, 1991Genesee County, Monroe County, Niagara County, New York

NWS Buffalo, NY issued this flash flood warning at Apr 22, 1991, 5:45 PM EDT for Genesee County, Monroe County, Niagara County, New York. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Apr 22, 1991, 5:45 PM EDT (21:45 UTC)
Expired
Apr 22, 1991, 8:00 PM EDT
In force
2 hr
Issued by
NWS Buffalo, NY
Area
Whole counties

Counties Genesee County, NY, Monroe County, NY, Niagara County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.8 hours before the alert went out and 47 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 1991-04-22Temperature 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°0°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 1991-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
115 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 
TTAA00 KBUF 220337
FFWBUF
NYC055-230000-

BULLETIN  EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1130 PM EDT SUN APR 21 1991
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING FOR BLACK AND
OATKA CREEKS IN MONROE COUNTY.

MORE THAN AN INCH AND A HALF OF RAIN HAS FALLEN IN THE ROCHESTER AREA AS
OF 11 PM SUNDAY NIGHT.  MORE RAIN FALL IS EXPECTED THROUGH MONDAY
MORNING.

BLACK CREEK AT CHURCHVILLE WAS UP TO 5.7 FEET AT 11 PM AND IS EXPECTED
TO GO ABOVE THE FLOOD STAGE OF 6 FEET OVERNIGHT AND CREST AT 7 TO 8 FEET
LATE MONDAY NIGHT.

OATKA CREEK AT GARBUTT WAS 5.05 FEET AT 11 PM AND IS FORECAST TO GO
ABOVE THE FLOOD STAGE OF 6 FEET ABOUT 7 AM MONDAY AND CREST AT 7 TO 8
FEET LATE MONDAY NIGHT.

A FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED.
TAKE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

SAGE
1 follow-up statement
000 
TTAA00 KBUF 222144
FFWBUF
NYC037-055-063-240000-

BULLETIN  EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
545 PM EDT MON APR 22 1991
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING FOR TONAWANDA
CREEK IN GENESEE COUNTY AND THE BORDER OF ERIE AND NIAGARA COUNTIES.

ONE TO TWO INCHES OF RAIN HAS FALLEN OVER THAT BASIN IN THE PAST 24
HOURS.  AT 530 PM THE STAGE AT BATAVIA WAS 8.44 FEET.  IT IS FORECAST TO
GO ABOVE THE FLOOD STAGE OF 9 FEET LATER THIS EVENING AND CREST AT 9.5
TO 10 FEET TUESDAY MORNING.  THE CREST WILL MOVE DOWNSTREAM TOWARD ERIE
AND NIAGARA COUNTIES AND PRODUCE SOME FLOODING PROBABLY INTO WEDNESDAY.

A FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN REPORTED.
TAKE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

SAGE

Nearby

Flash Flood Warnings in New York, 1991Every flash flood warning in 1991

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.