Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 82, NWS Cleveland, OH

September 7, 1990Portage County, Stark County, Summit County, Ohio

NWS Cleveland, OH issued this flash flood warning at Sep 7, 1990, 8:22 AM EDT for Portage County, Stark County, Summit County, Ohio. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 8:22 AM EDT (12:22 UTC)
Expired
Sep 7, 1990, 12:30 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Portage County, OH, Stark County, OH, Summit 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 12:00Z, 0.4 hours before the alert went out and 127 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 12:00Z on 1990-09-07Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.19395878Sfc1 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
41 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
159 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 KCAK 071225
FFWCAK
OHC133-151-153-071630-
 
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE AKRON OH
822 AM EDT FRI SEP 7 1990
 
THE NATIONAL WEATHER SERVICE IN AKRON HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 1230 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHEAST OHIO
          ...PORTAGE...STARK...SUMMIT
 
THE URBAN AND SMALL STREAM FLOOD WARNING FOR STARK...SUMMIT AND
PORTAGE COUNTIES HAS BEEN EXTENDED UNTIL 1230 PM. RADAR AT 815 AM
WAS STILL SHOWING A LARGE AREA OF MODERATE TO LOCALLY HEAVY RAIN
NORTHWEST OF THE WARNING AREA MOVING SOUTHEAST AT 35 MPH. THREE
AND A HALF TO OVER FOUR INCHES OF RAIN HAS ALREADY BEEN RECORDED
OVER MUCH OF THE WARNING AREA DURING THE PAST 24 HOURS.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

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, 5:10 AM EDTFlash Flood WarningCLEJefferson7 hr
Sep 7, 6:55 AM EDTFlash Flood WarningCLECuyahoga3 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.