Alert archive / Ohio / Flash Flood Warnings in 1998

Flash Flood Warning 76, NWS Cleveland, OH

August 10, 1998Ashtabula County, Trumbull County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 10, 1998, 7:46 AM EDT for Ashtabula County, Trumbull County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 10, 1998, 7:46 AM EDT (11:46 UTC)
Expired
Aug 10, 1998, 10:50 AM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Ashtabula County, OH, Trumbull County, OH

The radar

The Cleveland radar (KCLE), 94 km from the middle of the area, began a volume at 11:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 11.8 hours before the alert went out and 144 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 1998-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1583 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1998-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
1583 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1333 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
18 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 KCLE 101148
FFWCLE
OHC007-155-101450-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
746 AM EDT MON AUG 10 1998

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS FOR...
  ASHTABULA COUNTY IN NORTHEASTERN OHIO
  TRUMBULL COUNTY IN NORTHEASTERN OHIO

* UNTIL 1050 AM EDT

* AT 745 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR IN CLEVELAND
  INDICATED HEAVY RAIN HAS FALLEN ACROSS PORTIONS OF NORTHERN TRUMBULL
  AND SOUTHERN ASHTABULA COUNTIES. UP TO TWO AND A QUARTER INCHES OF
  RAIN HAS FALLEN IN THE PAST 3 HOURS. ADDITIONAL SHOWERS AND
  THUNDERSTORMS CONTAINING HEAVY DOWNPOURS WILL MOVE ACROSS TRUMBULL
  AND ASHTABULA COUNTIES THROUGH 11 AM EDT.

*

MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN.

MILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 10:14 AM EDTFlash Flood WarningCLECuyahoga, Geauga, Lake3 hr
Aug 10, 10:14 AM EDTFlash Flood WarningCLEMedina, Summit3 hr
Aug 10, 3:51 PM EDTSevere Thunderstorm WarningCLEAshland, Richland49 min
Aug 10, 7:18 PM EDTFlash Flood WarningCLEHancock2 hr

Nearby

Flash Flood Warnings in Ohio, 1998Every flash flood warning in 1998

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; radar from the NEXRAD Level II archive.