Alert archive / Indiana / Flash Flood Warnings in 1996

Flash Flood Warning 10, NWS Northern Indiana

August 20, 1996Steuben County, Indiana; Williams County, Ohio

NWS Northern Indiana issued this flash flood warning at Aug 20, 1996, 6:11 PM EST for Steuben County, Indiana; Williams 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 20, 1996, 6:11 PM EST (23:11 UTC)
Expired
Aug 20, 1996, 8:15 PM EST
In force
2 hr
Issued by
NWS Northern Indiana
Area
Whole counties

Counties Steuben County, IN, Williams County, OH

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.2 hours before the alert went out and 168 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, Detroit, MI at 12:00Z on 1996-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1181 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, Detroit, MI at 12:00Z on 1996-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
1181 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
133 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 KFWA 202312
FFWFWA
INC151-OHC171-210115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
611 PM EST (711 PM EDT) TUE AUG 20 1996
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  815 PM EST (915 PM EDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST INDIANA
 
   ...STEUBEN COUNTY
 
 
IN NORTHWEST OHIO
 
   ...WILLIAMS COUNTY
 
AT 610PM EST/710PM EDT NUMEROUS THUNDERSTORMS WITH HEAVY RAIN WERE LINED
UP FROM WEST TO EAST THROUGH STEUBEN AND WILLIAMS COUNTIES.
 
MOVEMENT WAS TO THE EAST AT 25 MPH.
 
MORE STORMS ARE TO THE WEST OF THESE COUNTIES...STRETCHING BACK TO SOUTH
BEND IN NORTHERN INDIANA. AS THESE STORMS CONTINUE TO MOVE EAST THEY
WILL ADD TO FLOODING PROBLEMS IN STEUBEN AND WILLIAMS COUNTIES THIS
EVENING.
 
FLOODING WAS REPORTED IN BOTH COUNTIES. FROM 6PM EDT TO 7PM EDT FOUR
INCHES OF RAINFALL WAS RECORDED IN EDON IN WESTERN WILLIAMS COUNTY...
40 MILES NORTHEAST OF FORT WAYNE.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
 
REAUGH
&

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 4:32 PM ESTSevere Thunderstorm WarningIWXDeKalb, Steuben28 min

Nearby

Flash Flood Warnings in Indiana, 1996Flash 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.