Alert archive / Ohio / Tornado Warnings in 1986

Tornado Warning 18, NWS Cleveland, OH

September 30, 1986Mahoning County, Ohio

NWS Cleveland, OH issued this tornado warning at Sep 30, 1986, 4:54 PM EDT for Mahoning County, Ohio. It was in force for 66 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 30, 1986, 4:54 PM EDT (20:54 UTC)
Expired
Sep 30, 1986, 6:00 PM EDT
In force
66 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Mahoning County, OH

The radar

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

What was reported inside it

TimeReportWhereRemark
Sep 30, 5:12 PM EDTThunderstorm Wind 0Mahoning, OH

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.9 hours before the alert went out and 88 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, Pittsburgh, PA at 12:00Z on 1986-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 461 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, Pittsburgh, PA at 12:00Z on 1986-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 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
461 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
871 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KYNG 302054
TORYNG
OHC099-302200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
454 PM EDT TUE SEP 30 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 600 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

NORTHEAST OHIO...MAHONING

AT 450 PM RADAR INDICATED A POSSIBLE TORNADO NEAR ALLIANCE OHIO
IN STARK COUNTY MOVING EAST INTO MAHONING COUNTY.  SPOTTERS
INDICATED ROTATION IN THE SAME AREA.

PEOPLE IN THE PATH OF THESE STORMS SHOULD GO INDOORS TO THE LOWEST
FLOOR AND STAY AWAY FROM WINDOWS AND DOORS.  PROTECT YOUR HEAD AND
CHEST.  TRY TO PUT AS MANY WALLS BETWEEN YOURSELF AND THE STORM AS
POSSIBLE.A

 MCMULLEN

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 30, 3:25 PM EDTSevere Thunderstorm WarningCLEAshtabula50 min
Sep 30, 3:42 PM EDTSevere Thunderstorm WarningCLEWayne58 min
Sep 30, 4:08 PM EDTSevere Thunderstorm WarningCLEStark62 min
Sep 30, 4:15 PM EDTSevere Thunderstorm WarningCLETrumbull45 min
Sep 30, 4:18 PM EDTSevere Thunderstorm WarningCLEPortage, Summit62 min

Nearby

Tornado Warnings in Ohio, 1986Every tornado warning in 1986Tornadoes in 1986

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.