Alert archive / Ohio / Flash Flood Warnings in 1996

Flash Flood Warning 13, NWS Wilmington, OH

April 29, 1996Champaign County, Clark County, Ohio

NWS Wilmington, OH issued this flash flood warning at Apr 29, 1996, 4:55 AM EDT for Champaign County, Clark County, Ohio. It was in force for 6 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
Apr 29, 1996, 4:55 AM EDT (08:55 UTC)
Expired
Apr 29, 1996, 11:00 AM EDT
In force
6 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Champaign County, OH, Clark County, OH

The radar

The Cincinnati radar (KILN), 68 km from the middle of the area, began a volume at 08:54 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, 8.9 hours before the alert went out and 66 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 1996-04-29Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1996-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 637 square meters per square second.1939587897Sfc1 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
889 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
637 m²/s²
0-3 km storm-relative helicity
1126 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 KILN 290841
FFWILN
KYC015-023-037-OHC047-017-025-027-061-165-021-023-037-057-109-113-
135-291500-
 
BULLETIN
FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
440 AM EDT MON APR 29 1996
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS EFFECTIVE UNTIL 11 AM
EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH KENTUCKY
 
   ...BOONE COUNTY...BRACKEN COUNTY...CAMPBELL COUNTY
 
 
IN CENTRAL OHIO
 
   ...FAYETTE COUNTY
 
IN SOUTHWEST OHIO
 
   ...BUTLER COUNTY...CLERMONT COUNTY...CLINTON COUNTY
   ...HAMILTON COUNTY...WARREN COUNTY...PREBLE COUNTY
 
IN WEST CENTRAL OHIO
 
   ...CHAMPAIGN COUNTY...CLARK COUNTY...DARKE COUNTY
   ...GREENE COUNTY...MIAMI COUNTY...MONTGOMERY COUNTY
 
RAIN CONTINUES TO FALL ACROSS THE REGION WITH MANY AREAS IN GREATER
DAYTON AND CINCINNATI RECEIVING BETWEEN ONE AND TWO INCHES WITH
LOCALLY HEAVIER AMOUNTS IN THUNDERSTORMS NEAR TWO AND ONE-HALF
INCHES EARLY THIS MORNING. HEAVIER RAIN HAS BEEN MOVING ACROSS THE SAME
AREAS AND EXTENDS ALL THE WAY BACK ACROSS SOUTHERN INDIANA AND SOUTHERN
ILLINOIS MOVING INTO SOUTHWEST OHIO AND FAR NORTHERN KENTUCKY.
 
NUMEROUS CREEKS AND STREAMS ARE OUT OF THEIR BANKS OR NEAR BANKFUL.
INDIAN CREEK IN BUTLER COUNTY WAS OUT OF ITS BANKS AND EVACUATIONS
WERE TAKING PLACE IN THE TOWN OF REILY.
 
AT LEAST ONE TO TWO MORE INCHES OF RAIN WILL LIKELY FALL TODAY
ACROSS SOUTHWEST OHIO AND FAR NORTHERN KENTUCKY CAUSING THE
FLOODING TO WORSEN AND WARNINGS MAY BE EXPANDED ACROSS THE REGION.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLOODING IS OBSERVED...
ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE^ FLOOD WATERS. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
SANDLER
&

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.

NWS Wilmington, OH wrote its last area forecast discussion before this flash flood warning went out at Apr 29, 2:56 AM EDT, 1 hour 59 minutes earlier.

Area forecast discussion, Apr 29, 2:56 AM EDT, 1 hour 59 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
255 AM EDT MON APR 29 1996

TOO BUSY FOR A REGULAR DISCUSSION.  FF THREAT IS HIGH AS NR 2 INCHES
HAS ALREADY FALLEN IN FAR N KY...SE AND EC IN...SW AND WC OH.  WOULD
LIKE FF WATCH FOR TODAY AND TNGT FOR THIS SAME AREA (AND C OH) AS SERIOUS
TRAINING OCCURRING THRU AT LEAST THIS MORNG AND THEN WITH APPROACH OF
LOW AND COLD FNT WL LOOK FOR MORE RW/TRW FOLLOWED BY BACKWASH MON NGT
INTO TUE.

RIGHT NOW NUMEROUS CREEKS OUT OF BANKS OR CLOSE AND SOME ROADS ARE
GETTING WATER OVER THEM BETWEEN CVG AND DAY.  NEXT PROBLEM WL BE
TRIBUTARIES TO THE OHIO RIVER.  HAVE NOT LOOKED AT SVR THREAT FOR
MON AFT AND EVNG...AM MORE CONCERNED WITH& FLOODING THREAT.

SANDLER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 4:55 AM EDTFlash Flood WarningILNButler, Clermont, Hamilton, Warren6 hr
Apr 29, 4:55 AM EDTFlash Flood WarningILNClinton, Fayette, Greene6 hr
Apr 29, 4:55 AM EDTFlash Flood WarningILNDarke, Miami, Montgomery, Preble6 hr
Apr 29, 11:11 AM EDTFlash Flood WarningILNDarke, Montgomery3 hr
Apr 29, 11:11 AM EDTFlash Flood WarningILNClermont3 hr
Apr 29, 3:56 PM EDTFlash Flood WarningILNHamilton3 hr
Apr 29, 3:57 PM EDTSevere Thunderstorm WarningILNButler, Hamilton48 min
Apr 29, 4:20 PM EDTSevere Thunderstorm WarningILNClermont, Warren40 min
Apr 29, 4:26 PM EDTSevere Thunderstorm WarningILNMontgomery49 min
Apr 29, 4:38 PM EDTSevere Thunderstorm WarningILNClark, Greene52 min
Apr 29, 4:38 PM EDTSevere Thunderstorm WarningILNBrown, Clinton, Highland52 min
Apr 29, 4:51 PM EDTTornado WarningILNClark, Greene, Montgomery39 min
Apr 29, 5:08 PM EDTSevere Thunderstorm WarningILNAdams52 min
Apr 29, 5:08 PM EDTSevere Thunderstorm WarningILNFayette, Madison52 min
Apr 29, 5:08 PM EDTSevere Thunderstorm WarningILNChampaign52 min
Apr 29, 5:24 PM EDTSevere Thunderstorm WarningILNHighland36 min
Apr 29, 5:24 PM EDTSevere Thunderstorm WarningILNClark36 min
Apr 29, 5:42 PM EDTSevere Thunderstorm WarningILNFranklin, Pickaway48 min
Apr 29, 5:42 PM EDTSevere Thunderstorm WarningILNDelaware48 min
Apr 29, 5:43 PM EDTSevere Thunderstorm WarningILNPike, Scioto47 min
Apr 29, 5:54 PM EDTSevere Thunderstorm WarningILNAdams51 min
Apr 29, 6:08 PM EDTSevere Thunderstorm WarningILNLicking52 min
Apr 29, 6:21 PM EDTSevere Thunderstorm WarningILNFairfield, Hocking39 min
Apr 29, 6:57 PM EDTSevere Thunderstorm WarningILNHocking18 min
Apr 29, 7:44 PM EDTFlash Flood WarningILNMontgomery4 hr

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.