Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 30, NWS Northern Indiana

July 26, 1997Defiance County, Ohio

NWS Northern Indiana issued this severe thunderstorm warning at Jul 26, 1997, 8:39 PM EDT for Defiance County, Ohio. It was in force for 36 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 26, 1997, 8:39 PM EDT (00:39 UTC)
Expired
Jul 26, 1997, 9:15 PM EDT
In force
36 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Defiance County, OH

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 26, 6:45 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.7 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 1997-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2837 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, Detroit, MI at 00:00Z on 1997-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
2837 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 270040 RRA
SVRFWA
OHC039-270115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
739 PM EST (839 PM EDT) SAT JUL 26 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM EST (915 PM EDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST OHIO
 
   ...SOUTHERN DEFIANCE COUNTY
 
A SEVERE THUNDERSTORM WAS LOCATED NEAR THE CITY OF DEFIANCE. THIS STORM
CAN PRODUCE DANGEROUS LIGHTNING...DAMAGING WINDS...LARGE HAIL AND VERY
HEAVY RAINFALL.
 
PEOPLE IN THE CITY OF DEFIANCE SHOULD SEEK SHELTER FROM THIS STORM
IMMEDIATELY.
HAYES
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVEh INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 4:27 PM EDTSevere Thunderstorm WarningIWXWilliams33 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm 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.