Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 47, NWS Cleveland, OH

May 29, 1998Knox County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 29, 1998, 2:44 PM EDT for Knox County, Ohio. It was in force for 46 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
May 29, 1998, 2:44 PM EDT (18:44 UTC)
Expired
May 29, 1998, 3:30 PM EDT
In force
46 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Knox County, OH

The watch it was issued in

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

IssuedProductOfficeLasted
May 29, 2:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.7 hours before the alert went out and 160 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, Cncnati-Daytn, OH at 12:00Z on 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 410 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, Cncnati-Daytn, OH at 12:00Z on 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939Sfc1 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
410 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1085 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

246 
WUUS1 KCLE 291845 RRA
SVRCLE
OHC083-291930-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
244 PM EDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KNOX COUNTY IN NORTH CENTRAL OHIO

* UNTIL 330 PM EDT

* AT 242 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES EAST OF MOUNT VERNON OR 1 MILE SOUTHWEST
  OF MILLWOOD MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE NEAR...
  HOWARD
  GAMBIER

 .SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO INSIDE
A STURDY BUILDING AND STAY AWAY FROM WINDOWS

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 4:10 AM EDTSevere Thunderstorm WarningCLEWood30 min
May 29, 2:40 PM EDTSevere Thunderstorm WarningCLEStark65 min
May 29, 2:52 PM EDTSevere Thunderstorm WarningCLEMahoning48 min
May 29, 3:04 PM EDTSevere Thunderstorm WarningCLEAshland46 min
May 29, 3:08 PM EDTSevere Thunderstorm WarningCLEWayne62 min
May 29, 3:39 PM EDTSevere Thunderstorm WarningCLEStark66 min
May 29, 5:24 PM EDTSevere Thunderstorm WarningCLEKnox61 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1998Every severe thunderstorm warning in 1998

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.