Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 340, NWS Cleveland, OH

July 21, 1998Ottawa County, Sandusky County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 21, 1998, 9:43 PM EDT for Ottawa County, Sandusky County, Ohio. It was in force for 62 min. 4 reports 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
Jul 21, 1998, 9:43 PM EDT (01:43 UTC)
Expired
Jul 21, 1998, 10:45 PM EDT
In force
62 min
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties Ottawa County, OH, Sandusky County, OH

The radar

The Cleveland radar (KCLE), 99 km from the middle of the area, began a volume at 01:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 21, 10:00 PM EDTThunderstorm WindCountywide, OHTrees were downed.
Jul 21, 10:15 PM EDTThunderstorm WindCentral Portion, OHTrees and power lines were downed around Fremont and Clyde
Jul 21, 10:16 PM EDTHail 1Port Clinton, OHLarge hail fell in the north central portion of the county approximately 10 miles west of Port Clinton.
Jul 21, 10:21 PM EDTHail 0.75Clyde, 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 21, 7:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.7 hours before the alert went out and 147 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 1998-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 1998-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 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
23 J/kg
Mixed-layer CIN
-374 J/kg
Mixed-layer LCL
1967 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
247 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

796 
WUUS1 KCLE 220142 RRA
SVRCLE
OHC123-143-OHZ521-220245-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
943 PM EDT TUE JUL 21 1998

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OTTAWA COUNTY INCLUDING ADJACENT COASTAL WATERS IN NORTHWESTERN OHIO
  SANDUSKY COUNTY IN NORTHWESTERN OHIO

* UNTIL 1045 PM EDT

* AT 942 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 20 MILES NORTHWEST OF FREMONT OR 6 MILES
  NORTHWEST OF WOODVILLE MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE NEAR...
  WOODVILLE
  ELMORE
  GIBSONBURG
  FREMONT
  PORT CLINTON

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

BARJENBRUCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:01 PM EDTSevere Thunderstorm WarningCLECuyahoga64 min
Jul 21, 8:09 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake61 min
Jul 21, 8:26 PM EDTSevere Thunderstorm WarningCLEPortage, Summit64 min
Jul 21, 8:26 PM EDTSevere Thunderstorm WarningCLEMedina64 min
Jul 21, 8:35 PM EDTSevere Thunderstorm WarningCLETrumbull65 min
Jul 21, 8:50 PM EDTSevere Thunderstorm WarningCLESeneca50 min
Jul 21, 9:03 PM EDTSevere Thunderstorm WarningCLEHuron62 min
Jul 21, 9:10 PM EDTSevere Thunderstorm WarningCLEMahoning65 min
Jul 21, 9:21 PM EDTSevere Thunderstorm WarningCLELucas, Wood64 min
Jul 21, 9:36 PM EDTTornado WarningCLEWood64 min
Jul 21, 10:03 PM EDTSevere Thunderstorm WarningCLEHancock, Seneca62 min
Jul 21, 10:05 PM EDTSevere Thunderstorm WarningCLEErie65 min
Jul 21, 10:33 PM EDTFlash Flood WarningCLELorain3 hr
Jul 21, 10:38 PM EDTTornado WarningCLEErie, Huron47 min
Jul 21, 10:48 PM EDTSevere Thunderstorm WarningCLELorain62 min
Jul 21, 11:04 PM EDTTornado WarningCLELorain51 min
Jul 21, 11:18 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina62 min
Jul 21, 11:23 PM EDTSevere Thunderstorm WarningCLEAshland, Holmes, Knox, Richland62 min
Jul 21, 11:23 PM EDTSevere Thunderstorm WarningCLEWayne62 min
Jul 21, 11:45 PM EDTSevere Thunderstorm WarningCLEPortage, Stark, Summit60 min
Jul 22, 12:09 AM EDTSevere Thunderstorm WarningCLEMahoning, Trumbull61 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.