Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 420, NWS Cleveland, OH

September 7, 1998Medina County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 7, 1998, 6:40 AM EDT for Medina County, Ohio. It was in force for 65 min. 2 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
Sep 7, 1998, 6:40 AM EDT (10:40 UTC)
Expired
Sep 7, 1998, 7:45 AM EDT
In force
65 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Medina County, OH

The radar

The Cleveland radar (KCLE), 33 km from the middle of the area, began a volume at 10:43 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
Sep 7, 6:48 AM EDTHail 0.75Medina, OHLarge hail fell east of the city of Medina. Some crops were damaged.
Sep 7, 7:00 AM EDTThunderstorm WindHinckley, OHTrees and branches were downed.

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
Sep 7, 5:00 AM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 10.7 hours before the alert went out and 171 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 00:00Z on 1998-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 511 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 00:00Z on 1998-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 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
511 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
2224 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

262 
WUUS1 KCLE 071041 RRA
SVRCLE
OHC103-071145-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
640 AM EDT MON SEP 7 1998

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MEDINA COUNTY IN NORTHEASTERN OHIO

* UNTIL 745 AM EDT

* AT 639 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES SOUTH OF MEDINA OR 5 MILES WEST OF
  WADSWORTH MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE NEAR...
  WADSWORTH

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
Sep 7, 4:01 AM EDTSevere Thunderstorm WarningCLELucas64 min
Sep 7, 4:29 AM EDTSevere Thunderstorm WarningCLEWood61 min
Sep 7, 4:53 AM EDTSevere Thunderstorm WarningCLESandusky, Seneca62 min
Sep 7, 5:40 AM EDTSevere Thunderstorm WarningCLEErie, Huron60 min
Sep 7, 6:27 AM EDTSevere Thunderstorm WarningCLELorain63 min
Sep 7, 6:50 AM EDTSevere Thunderstorm WarningCLESummit65 min
Sep 7, 7:00 AM EDTSevere Thunderstorm WarningCLEPortage65 min
Sep 7, 7:13 AM EDTSevere Thunderstorm WarningCLEGeauga62 min
Sep 7, 7:26 AM EDTSevere Thunderstorm WarningCLEMahoning, Trumbull59 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.