Alert archive / Ohio / Flash Flood Warnings in 1997

Flash Flood Warning 101, NWS Wilmington, OH

July 22, 1997Warren County, Ohio

NWS Wilmington, OH issued this flash flood warning at Jul 22, 1997, 8:57 PM EDT for Warren 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
Jul 22, 1997, 8:57 PM EDT (00:57 UTC)
Expired
Jul 22, 1997, 11:00 PM EDT
In force
2 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

County Warren County, OH

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.0 hours before the alert went out and 32 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 1997-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1057 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, Cncnati-Daytn, OH at 00:00Z on 1997-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
1057 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
584 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILN 230058
FFWILN
OHC165-230300-
 
BULLETIN
FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
857 PM EDT TUE JUL 22 1997
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS EFFECTIVE UNTIL 1100 PM 
TFOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST OHIO
 
   ...WARREN COUNTY
 
AT 855 PM EDT...WEATHER SERVICE RADAR INDICATED THAT OVER 2.5 INCHES OF
RAIN HAD FALLEN SINCE 730 PM EDT OVER PORTIONS OF WARREN COUNTY NEAR
MASON.
 
A NEARLY STATIONARY THUNDERSTORM OVER SOUTHERN WARREN COUNTY SHOULD
CONTINUE TO PRODUCE HEAVY RAIN...INTENSIFYING FLOODING.
 
NEVER DRIVE YOUR CAR INTO A FLOODED ROADWAY. YOU CAN EASILY
BECOME STRANDED OR TRAPPED. THE DEPTH OF WATER IS NOT ALWAYS
OBVIOUS. IF YOU ARE UNSURE ABOUT THE ROAD CONDITION OR THE WATER
LEVEL AHEAD OF YOU...TURN AROUND AND TAKE ANOTHER ROUTE.
 
 
DIAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 9:13 PM EDTFlash Flood WarningILNHamilton107 min
Jul 22, 9:42 PM EDTFlash Flood WarningILNButler2 hr
Jul 23, 3:51 PM EDTSevere Thunderstorm WarningILNPike44 min

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.