Alert archive / Indiana / Flash Flood Warnings in 1997

Flash Flood Warning 2, NWS Northern Indiana

July 21, 1997Steuben County, Indiana; Williams County, Ohio

NWS Northern Indiana issued this flash flood warning at Jul 21, 1997, 7:19 AM EST for Steuben County, Indiana; Williams County, Ohio. It was in force for 116 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 21, 1997, 7:19 AM EST (12:19 UTC)
Expired
Jul 21, 1997, 9:15 AM EST
In force
116 min
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, 0.3 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 1997-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 290 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 1997-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
290 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1035 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
42 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 211222
FFWFWA
INC087-151-OHC171-211415-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
719 AM EST (819 AM EDT) MON JUL 21 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 AM EST (1015 AM EDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST INDIANA
 
   ...LAGRANGE COUNTY...STEUBEN COUNTY
 
 
IN NORTHWEST OHIO
 
   ...WILLIAMS COUNTY
 
EXTREMELY HEAVY RAIN HAS BEEN FALLING ACROSS LAGRANGE AND STEUBEN
COUNTIES OF NORTHEAST INDIANA AND WILLIAMS COUNTY OF EXTREME NORTHWEST
OHIO SINCE 6 AM EST/7 AM EDT
 
PEOPLE IN THESE COUNTIES SHOULD BE ALERT FOR RISING WATERS IN SMALL
STREAMS AND FLOODING STREETS AND ROADS.
 
DO NOT DRIVE THROUGH FLOODED ROADS.
HAYES
 
 
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 I,F 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.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 7:19 AM ESTFlash Flood WarningIWXLaGrange116 min

Nearby

Flash Flood Warnings in Indiana, 1997Flash 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.