Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 68, NWS Cleveland, OH

August 22, 1990Washington County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 22, 1990, 6:41 AM EDT for Washington County, Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 22, 1990, 6:41 AM EDT (10:41 UTC)
Expired
Aug 22, 1990, 9:45 AM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

County Washington County, OH

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

Huntington/Tri S, WV (KHTS), launched 00:00Z, 10.7 hours before the alert went out and 149 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, Huntington/Tri S, WV at 00:00Z on 1990-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1687 joules per kilogram.LCLLFCEL10008507005003002001001 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, Huntington/Tri S, WV at 00:00Z on 1990-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
1687 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
826 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCAK 221042
FFWCAK
OHC167-221345-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE AKRON OH
641 AM EDT WED AUG 22 1990
 
THE NATIONAL WEATHER SERVICE IN AKRON HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  945 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST OHIO
          ...WASHINGTON
 
THIS WARNING REPLACES THE FLASH FLOOD WARNING THAT WAS IN EFFECT
EARLIER FOR WASHINGTON COUNTY.
 
AT 640 AM WEATHER RADAR CONTINUED TO INDICATE NUMEROUS SHOWERS  AND
THUNDERSTORMS OVER SOUTHEAST OHIO FROM JACKSON TO MARIETTA.
RAINFALL INTENSITIES HAD DECREASED SINCE 6 AM. THE SHOWERS AND
THUNDERSTORMS WERE MOVING NORTHEAST AT 10 MPH.
 
RADAR AND SATELLITE RAINFALL ESTIMATES INDICATE AS MUCH AS 2 INCHES OF
RAIN FELL ON PARTS OF WASHINGTON COUNTY SINCE MIDNIGHT. ADDITIONAL
RAINFALL THIS MORNING...ON ALREADY SATURATED GROUND...COULD CAUSE
FLOODING IN URBAN AREAS AND ALONG SMALL STREAMS.
 
RESIDENTS IN SOUTHEAST OHIO...ESPECIALLY WASHINGTON COUNTY...SHOULD
REMAIN ALERT FOR POSSIBLE FLOODING AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY.
 
AT 630 THIS MORNING THE WASHINGTON COUNTY SHERIFFS OFFICE REPORTED NO
SIGNIFICANT FLOODING PROBLEMS IN WASHINGTON COUNTY.
 
A FLOOD WATCH REMAINS IN EFFECT TODAY FOR PARTS OF EAST CENTRAL AND
ALL OF SOUTHEAST OHIO.
 
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
THOMPSON

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 22, 4:02 AM EDTFlash Flood WarningCLEWashington3 hr

Nearby

Flash Flood Warnings in Ohio, 1990Every flash flood warning in 1990

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.