Alert archive / Ohio / Flash Flood Warnings in 1990

Flash Flood Warning 18, NWS Cleveland, OH

July 11, 19904 counties in Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 11, 1990, 8:44 AM EDT for 4 counties in Ohio. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jul 11, 1990, 8:44 AM EDT (12:44 UTC)
Expired
Jul 11, 1990, 4:45 PM EDT
In force
8 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Holmes County, OH, Stark County, OH, Summit County, OH, Wayne 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, 0.7 hours before the alert went out and 141 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 1990-07-11Temperature 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, Pittsburgh, PA at 12:00Z on 1990-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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

Special weather statement, Jul 11, 2:58 AM EDT, 5 hours 46 minutes before
OHZALL-111200-

SEVERE WEATHER OUTLOOK FOR OHIO
NATIONAL WEATHER SERVICE CLEVELAND OH
258 AM EDT WED JUL 11 1990

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT
THERE IS A CHANCE OF SEVERE THUNDERSTORMS OVER SOUTHERN SECTIONS OF
OHIO TODAY AND TONIGHT.

JOHNSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 8:44 AM EDTFlash Flood WarningCLETuscarawas8 hr
Jul 11, 8:44 AM EDTFlash Flood WarningCLEPortage8 hr
Jul 11, 11:34 AM EDTFlash Flood WarningCLEBelmont, Harrison, Jefferson5 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.