Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 78, NWS Cleveland, OH

September 7, 1990Cuyahoga County, Lorain County, Ohio

NWS Cleveland, OH issued this flash flood warning at Sep 7, 1990, 3:53 AM EDT for Cuyahoga County, Lorain County, Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 3:53 AM EDT (07:53 UTC)
Expired
Sep 7, 1990, 7:00 AM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Cuyahoga County, OH, Lorain 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

Detroit, MI (KFNT), launched 00:00Z, 7.9 hours before the alert went out and 187 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, Detroit, MI at 00:00Z on 1990-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 629 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, Detroit, MI at 00:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
629 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1059 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCLE 070800
FFWCLE
OHC035-093-071100-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
353 AM EDT FRI SEP 7 1990
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  700 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHEAST OHIO
          ...CUYAHOGA...LORAIN
 
AT 345 AM RADAR SHOWED NUMEROUS SHOWERS AND THUNDERSTORMS OVER NORTH
OHIO AND LAKE ERIE. MOST WERE MOVING SOUTHEAST AT ABOUT 35 MPH. THE
STORMS WERE POSITIONED SO CUYAHOGA AND LORAIN COUNTIES COULD
EXPERIENCE REPEATED HEAVY RAINS EARLY THIS MORNING. SINCE MANY SPOTS
THERE GOT HEAVY RAIN ALREADY OVERNIGHT... FLOODING PROBLE&MS ARE LIKELY
TO DEVELOP.
 
 
MOST 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.

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, 4:26 AM EDTFlash Flood WarningCLEPortage, Stark, Summit4 hr
Sep 7, 5:10 AM EDTFlash Flood WarningCLEJefferson7 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.