Alert archive / Ohio / Tornado Warnings in 1987

Tornado Warning 2, NWS Wilmington, OH

July 9, 1987Clermont County, Ohio

NWS Wilmington, OH issued this tornado warning at Jul 9, 1987, 2:34 PM EDT for Clermont County, Ohio. It was in force for 26 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1987, 2:34 PM EDT (18:34 UTC)
Expired
Jul 9, 1987, 3:00 PM EDT
In force
26 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Clermont County, OH

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 6.6 hours before the alert went out and 95 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, Dayton/James M C, OH at 12:00Z on 1987-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 854 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, Dayton/James M C, OH at 12:00Z on 1987-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
854 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
967 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCVG 091833
TORCVG
OHC025-091900-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CINCINNATI OH
234 PM EDT THU JUL 9 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 300 PM EDT FOR THE FOLLOWING COUNTY OF
 
SOUTHWEST OHIO... CLERMONT
 
A FUNNEL CLOUD HAS BEEN REPORTED NORTH OF BATAVIA OHIO . THE FUNNEL
CLOUD WAS MOVING NORTHEAST AT 25 MPH.
 
 
IF YOU ARE INDOORS GET TO THE BASEMENT OR LOWEST FLOOR POSSIBLE IN AN
INTERIOR ROOM LIKE A CLOSET OR BATHROOM.  IF NO SUCH ROOM IS AVAILABLE
GET UNDER A STURDY STRUCTURE LIKE A STAIRCASE OR WORKBENCH.  AVOID AREAS
WITH WINDOWS.
 
RKB

Nearby

Tornado Warnings in Ohio, 1987Every tornado warning in 1987Tornadoes in 1987

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.