Alert archive / Ohio / Flash Flood Warnings in 1997

Flash Flood Warning 72, NWS Cleveland, OH

July 9, 1997Hancock County, Ohio

NWS Cleveland, OH issued this flash flood warning at Jul 9, 1997, 12:18 AM EDT for Hancock County, Ohio. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 9, 1997, 12:18 AM EDT (04:18 UTC)
Expired
Jul 9, 1997, 2:15 AM EDT
In force
117 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Hancock County, OH

The radar

The Cleveland radar (KCLE), 158 km from the middle of the area, began a volume at 04:22 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 00:00Z, 4.3 hours before the alert went out and 175 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 00:00Z on 1997-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 702 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 00:00Z on 1997-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
702 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1294 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCLE 090423
FFWCLE
OHC063-090615-
 
FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1218 AM EDT WED JUL 9 1997
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS
EFFECTIVE UNTIL  215 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  OHIO
 
   ...HANCOCK COUNTY
 
AT 1215 AM EDT CLEVELAND DOPPLER RADAR INDICATED ANOTHER CLUSTER OF
THUNDERSTORMS MOVING INTO HANCOCK COUNTY. LOCALLY HEAVY RAINS ASSOCIATED
WITH THESE STORMS WILL LIKELY CAUSE FLOODING IN URBAN AREAS AS WELL AS
SIGNIFICANT PONDING OF WATER AND FLOODING OF LOCAL STREAMS.
 
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.
 
VRCEK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 9:35 PM EDTSevere Thunderstorm WarningCLEHenry25 min
Jul 8, 9:56 PM EDTSevere Thunderstorm WarningCLEHancock, Wood49 min
Jul 8, 10:16 PM EDTFlash Flood WarningCLEHancock, Henry, Wood119 min
Jul 8, 10:41 PM EDTSevere Thunderstorm WarningCLESeneca, Wyandot49 min
Jul 8, 10:57 PM EDTSevere Thunderstorm WarningCLECrawford63 min
Jul 9, 12:56 AM EDTSevere Thunderstorm WarningCLEMarion, Wyandot64 min
Jul 9, 1:58 AM EDTSevere Thunderstorm WarningCLEAshland, Richland32 min
Jul 9, 2:20 AM EDTFlash Flood WarningCLEMarion, Morrow115 min
Jul 9, 3:00 AM EDTFlash Flood WarningCLEKnox2 hr

Nearby

Flash Flood Warnings in Ohio, 1997Every flash flood warning in 1997

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.