Alert archive / Ohio / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS Northern Indiana

July 8, 1997Defiance County, Ohio

NWS Northern Indiana issued this flash flood warning at Jul 8, 1997, 10:10 PM EDT for Defiance 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 8, 1997, 10:10 PM EDT (02:10 UTC)
Expired
Jul 9, 1997, 12:15 AM EDT
In force
2 hr
Issued by
NWS Northern Indiana
Area
Whole counties

County Defiance County, OH

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.2 hours before the alert went out and 178 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 00:00Z on 1997-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1617 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 00:00Z on 1997-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 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
1617 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
602 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 090212
FFWFWA
OHC039-090415-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
910 PM EST (1010 PM EDT) TUE JUL 8 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM EST (1215 AM EDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST OHIO
 
   ...DEFIANCE COUNTY
 
THUNDERSTORMS HAVE DROPPED LARGE AMOUNTS OF RAIN ON DEFIANCE COUNTY THIS
EVENING...AND MORE STORMS WITH HEAVY RAIN WILL BE MOVING ACROSS THE
AREA.
 
FLOODING REPORTS HAVE BEEN RECEIVED AT THE NATIONAL WEATHER SERVICE FROM
DEFIANCE COUNTY OFFICIALS.
 
A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT...UNTIL 3AM.
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
REAUGH
 
&~

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 8:13 PM EDTSevere Thunderstorm WarningIWXWilliams47 min
Jul 8, 8:35 PM EDTSevere Thunderstorm WarningIWXDefiance55 min
Jul 8, 9:40 PM EDTSevere Thunderstorm WarningIWXDefiance35 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.