Alert archive / Ohio / Flash Flood Warnings in 1996

Flash Flood Warning 170, NWS Cleveland, OH

August 23, 1996Marion County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 23, 1996, 4:30 PM EDT for Marion County, Ohio. It was in force for 2 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 23, 1996, 4:30 PM EDT (20:30 UTC)
Expired
Aug 23, 1996, 6:30 PM EDT
In force
2 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

County Marion County, OH

The radar

The Cincinnati radar (KILN), 141 km from the middle of the area, began a volume at 20:31 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.5 hours before the alert went out and 140 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, Cncnati-Daytn, OH at 12:00Z on 1996-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 858 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 1996-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
858 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1093 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
27 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 232032
FFWCLE
OHC083-101-232230-
 
FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
430 PM EDT FRI AUG 23 1996
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS
EFFECTIVE UNTIL  630 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL OHIO
 
   ...KNOX COUNTY...MARION COUNTY
 
THUNDERSTORMS HAVE PRODUCED ONE TO TWO INCHES OF RAIN AND ADDITIONAL
SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH LATE AFTERNOON. THE
HEAVIEST RAINS HAVE OCCURRED ACROSS NORTHWEST MARION COUNTY AND NORTH
CENTRAL KNOX COUNTY.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
KOSARIK

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, Aug 23, 11:27 AM EDT, 5 hours 3 minutes before
OHZ002-003-005>014-017>023-027>033-036>038-047-PAZ001>003-241200-

SPECIAL WEATHER STATEMENT - SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
1130 PM EDT FRI AUG 23 1996

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS FOR NORTH CENTRAL AND
NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA THIS AFTERNOON.

THE BEST CHANCE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS WOULD COME
DURING THE AFTERNOON HOURS BETWEEN NOON AND 6 PM AS A COLD FRONT BEGINS
TO MOVE FROM NORTHWEST TO SOUTHEAST. THUNDERSTORMS WILL BE SCATTERED
ACROSS THE LAKE ERIE LAKESHORE COUNTIES WITH A BETTER CHANCE OF
THUNDERSTORMS INLAND FROM THE LAKE FROM AROUND MEADVILLE IN NORTHWEST
PENNSYLVANIA TO YOUNGSTOWN AND CANTON AND MANSFIELD.

THERE IS A CHANCE FOR SOME SECTIONS TO SEE SEVERAL THUNDERSTORMS DURING
THE COURSE OF THE AFTERNOON. ANY THUNDERSTORM COULD PRODUCE HEAVY RAINS
AND AREAS THAT HAVE MULTIPLE THUNDERSTORMS COULD SEE PONDING OF WATER
IN LOW LYING AND POOR DRAINAGE AREAS.

THE FRONT WILL MOVE SOUTH OF THE AREA EARLY TONIGHT AND THE THREAT OF
SEVERE WEATHER WILL END.

KOSARIK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 2:40 PM EDTFlash Flood WarningCLETrumbull2 hr
Aug 23, 2:45 PM EDTSevere Thunderstorm WarningCLEStark, Wayne60 min
Aug 23, 3:56 PM EDTSevere Thunderstorm WarningCLEMarion64 min
Aug 23, 4:30 PM EDTFlash Flood WarningCLEKnox2 hr
Aug 23, 4:48 PM EDTFlash Flood WarningCLERichland117 min

Nearby

Flash Flood Warnings in Ohio, 1996Every flash flood warning in 1996

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.