Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 321, NWS Cleveland, OH

July 21, 1998Huron County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 21, 1998, 7:57 PM EDT for Huron County, Ohio. It was in force for 63 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
Jul 21, 1998, 7:57 PM EDT (23:57 UTC)
Expired
Jul 21, 1998, 9:00 PM EDT
In force
63 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Huron County, OH

The radar

The Cleveland radar (KCLE), 68 km from the middle of the area, began a volume at 23:57 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, 8:00 PM EDTThunderstorm Wind 52Countywide, OHNumerous trees were downed, particularly in the Norwalk area, where a 58 year old man was taken to the hospital after being seriously injured when a tree fell on his car. In Peru Township, a medium size barn was picked up and dropped on its top and three hay

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 12:00Z, 12.0 hours before the alert went out and 188 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 12:00Z on 1998-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 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 12:00Z on 1998-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.19395878Sfc1 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
27 J/kg
Mixed-layer CIN
-328 J/kg
Mixed-layer LCL
2116 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
130 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.

000 
TTAA00 KCLE 212357 RRA
SVRCLE
OHC077-220100-

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 900 PM EDT

* AT 756 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES EAST OF FREMONT OR 11 MILES WEST OF
  MONROEVILLE MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE NEAR...
  MONROEVILLE
  NORWALK
  WAKEMAN
  NEW LONDON

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, 6:35 AM EDTSevere Thunderstorm WarningCLELucas35 min
Jul 21, 6:48 AM EDTSevere Thunderstorm WarningCLEWood47 min
Jul 21, 6:57 AM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky48 min
Jul 21, 7:05 AM EDTSevere Thunderstorm WarningCLEHancock, Seneca45 min
Jul 21, 7:42 AM EDTSevere Thunderstorm WarningCLEErie, Huron48 min
Jul 21, 7:47 AM EDTSevere Thunderstorm WarningCLELorain48 min
Jul 21, 7:55 AM EDTSevere Thunderstorm WarningCLEAshland, Richland45 min
Jul 21, 8:04 AM EDTSevere Thunderstorm WarningCLECrawford, Wyandot46 min
Jul 21, 8:06 AM EDTSevere Thunderstorm WarningCLELucas49 min
Jul 21, 8:22 AM EDTSevere Thunderstorm WarningCLECuyahoga, Lake48 min
Jul 21, 8:25 AM EDTSevere Thunderstorm WarningCLEOttawa50 min
Jul 21, 8:30 AM EDTSevere Thunderstorm WarningCLEGeauga50 min
Jul 21, 9:41 AM EDTSevere Thunderstorm WarningCLEAshland, Wayne49 min
Jul 21, 9:43 AM EDTSevere Thunderstorm WarningCLEMedina47 min
Jul 21, 7:03 PM EDTSevere Thunderstorm WarningCLEWood62 min
Jul 21, 7:05 PM EDTSevere Thunderstorm WarningCLEOttawa65 min
Jul 21, 7:33 PM EDTSevere Thunderstorm WarningCLEErie, Sandusky62 min
Jul 21, 7:46 PM EDTSevere Thunderstorm WarningCLESeneca64 min
Jul 21, 7:52 PM EDTSevere Thunderstorm WarningCLELorain63 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.