Alert archive / New York / Flash Flood Warnings in 1989

Flash Flood Warning 18, NWS Buffalo, NY

June 22, 1989Orleans County, New York

NWS Buffalo, NY issued this flash flood warning at Jun 22, 1989, 11:10 PM EDT for Orleans County, New York. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jun 22, 1989, 11:10 PM EDT (03:10 UTC)
Expired
Jun 23, 1989, 5:00 AM EDT
In force
6 hr
Issued by
NWS Buffalo, NY
Area
Whole counties

County Orleans County, NY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 3.2 hours before the alert went out and 55 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 1989-06-23Temperature 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 00:00Z on 1989-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 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
NaN m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jun 22, 10:11 PM EDT, 59 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1010 PM EDT THU JUN 22 1989

SOME REPORTS ON THE FLOODING ACROSS THE AREA.

830 PM EDT  ORLEANS COUNTY SHERIFF REPORTED GOODWIN...PORTAGE...
            AND BATES ROADS CLOSED.  RTE 18 IN KENDALL WASHED OUT.

912 PM EDT  YOUNGTOWN FIRE DEPT CALLED OUT TO ASSIST EASTERN NIAGARA
            AND ORLEANS COUNTIES.

930 PM EDT  WYOMING COUNTY CIVIL DEFENSE REPORTS MANY COUNTY ROADS
            FLOODED POSSIBLE BRIDGE LOST OR HEAVILY DAMAGED.
            POSSIBLE EVACUATIONS.

950 PM EDT  STATE DEPT OF ENVIRONMENT CONSERVATION REPORTS RTE 16
            BRIDGE NEAR FRANKLINVILLE CATTARAUGUS COUNTY WASHED OUT.

1005PM EDT REPORT FROM ARCADE I@N WYOMING COUNTY 3.5 INCHES OF
           RAIN SINCE 7PM  WATER COMING INTO VILLAGE OFFICES.

DUNHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 10:58 PM EDTFlash Flood WarningBUFGenesee, Wyoming6 hr
Jun 22, 10:58 PM EDTFlash Flood WarningBUFCattaraugus6 hr

Nearby

Flash Flood Warnings in New York, 1989Every flash flood warning in 1989

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.