Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 80, NWS Cleveland, OH

September 7, 1990Jefferson County, Ohio

NWS Cleveland, OH issued this flash flood warning at Sep 7, 1990, 5:10 AM EDT for Jefferson County, Ohio. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 5:10 AM EDT (09:10 UTC)
Expired
Sep 7, 1990, 12:15 PM EDT
In force
7 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

County Jefferson 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

Pittsburgh, PA (KPIT), launched 00:00Z, 9.2 hours before the alert went out and 56 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, Pittsburgh, PA at 00:00Z on 1990-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 62 joules per kilogram.LCLLFCEL10008507005003002001001 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, Pittsburgh, PA at 00:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
62 J/kg
Mixed-layer CIN
-179 J/kg
Mixed-layer LCL
1475 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCAK 070912
FFWCAK
OHC081-071615-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AKRON OH
510 AM EDT FRI SEP 7 1990
 
THE NATIONAL WEATHER SERVICE IN AKRON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN EAST CENTRAL OHIO
          ...JEFFERSON
 
THE FLASH FLOOD WARNING FOR JEFFERSON COUNTY HAS BEEN EXTENDED TO
1215PM. AT 500AM THE JEFFERSON COUNTY SHERIFF REPORTED THAT LINCOLN
AVENUE IN STEUBENVILLE WAS UNDER 6 TO 8 FEET OF WATER. SEVERAL CARS
WERE SUBMERGED AND ABOUT 30 PEOPLE EVACUATED.
 
RADAR AT 500AM WAS SHOWING ANOTHER AREA OF HEAVY RAIN OVER NORTHEAST
OHIO WHICH WILL PROBABLY MOVE INTO JEFFERSON COUNTY BETWEEN LATER THIS
MORNING.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
BROOKY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 8:04 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake56 min
Sep 6, 8:17 PM EDTSevere Thunderstorm WarningCLEColumbiana, Mahoning58 min
Sep 6, 8:40 PM EDTSevere Thunderstorm WarningCLEPortage, Summit65 min
Sep 6, 9:18 PM EDTSevere Thunderstorm WarningCLEMahoning87 min
Sep 6, 9:18 PM EDTSevere Thunderstorm WarningCLETrumbull54 min
Sep 6, 9:23 PM EDTSevere Thunderstorm WarningCLEStark67 min
Sep 6, 9:59 PM EDTSevere Thunderstorm WarningCLEColumbiana61 min
Sep 7, 12:09 AM EDTFlash Flood WarningCLEHarrison, Jefferson4 hr
Sep 7, 12:17 AM EDTSevere Thunderstorm WarningCLEPortage, Summit43 min
Sep 7, 12:28 AM EDTFlash Flood WarningCLECuyahoga, Lorain2 hr
Sep 7, 12:35 AM EDTFlash Flood WarningCLEPortage, Stark, Summit4 hr
Sep 7, 1:11 AM EDTFlash Flood WarningCLEMedina2 hr
Sep 7, 2:06 AM EDTFlash Flood WarningCLEJefferson3 hr
Sep 7, 3:53 AM EDTFlash Flood WarningCLECuyahoga, Lorain3 hr
Sep 7, 4:26 AM EDTFlash Flood WarningCLEPortage, Stark, Summit4 hr
Sep 7, 6:55 AM EDTFlash Flood WarningCLECuyahoga3 hr
Sep 7, 8:22 AM EDTFlash Flood WarningCLEPortage, Stark, Summit4 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.