Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 203, NWS Cleveland, OH

June 27, 1998Knox County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 27, 1998, 4:54 PM EDT for Knox County, Ohio. It was in force for 66 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
Jun 27, 1998, 4:54 PM EDT (20:54 UTC)
Expired
Jun 27, 1998, 6:00 PM EDT
In force
66 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Knox County, OH

The radar

The Cleveland radar (KCLE), 122 km from the middle of the area, began a volume at 20:57 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 27, 4:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 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 1998-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2641 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 1998-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
2641 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
893 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.6

Open this sounding in Storm Lab

The text

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

360 
WUUS1 KCLE 272056 RRA
SVRCLE
OHC083-272200-

BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
454 PM EDT SAT JUN 27 1998

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 600 PM EDT

* AT 453 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES NORTH OF MOUNT VERNON MOVING SOUTHEAST AT
  25 MPH.

* THE SEVERE THUNDERSTORM WILL MOVE NEAR...
  MOUNT VERNON
  HOWARD
  PIPESVILLE

SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. GO INSIDE A STURDY BUILDING AND STAY
AWAY FROM WINDOWS

WSF

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 27, 11:23 AM EDT, 5 hours 31 minutes before
OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-281200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
1123 AM EDT SAT JUN 27 1998

SEVERE THUNDERSTORMS WILL BE POSSIBLE OVER NORTHERN OHIO AND ERIE AND
CRAWFORD COUNTIES OF NORTHWEST PENNSYLVANIA THIS AFTERNOON AND TONIGHT.

AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION THIS AFTERNOON
AND TONIGHT.  WITH A VERY MOIST AND UNSTABLE AIRMASS IN
PLACE...SCATTERED THUNDERSTORMS WILL DEVELOP.  A WEAK STATIONARY FRONT
DRAPED ACROSS THE REGION WILL FOCUS THE THUNDERSTORMS ACTIVITY.

ANY SEVERE WEATHER WILL MOST LIKELY BE IN THE FORM OF DAMAGING WIND OR
LARGE HAIL.  THE STORMS MAY ALSO PRODUCE TORRENTIAL RAIN.

SKYWARN ACTIVATION MAY BE NEEDED BY MID AFTERNOON.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO OR TELEVISION OR CABLE
TELEVISION FOR THE LATEST WEATHER INFORMATION.

BARJENBRUCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 1:08 AM EDTSevere Thunderstorm WarningCLEKnox, Morrow57 min
Jun 27, 1:42 AM EDTSevere Thunderstorm WarningCLECrawford63 min
Jun 27, 2:08 AM EDTFlash Flood WarningCLEKnox3 hr
Jun 27, 2:24 AM EDTFlash Flood WarningCLEMorrow3 hr
Jun 27, 2:27 AM EDTSevere Thunderstorm WarningCLEKnox63 min
Jun 27, 4:31 AM EDTFlash Flood WarningCLEKnox, Morrow3 hr
Jun 27, 4:44 AM EDTFlash Flood WarningCLERichland3 hr
Jun 27, 8:27 AM EDTFlash Flood WarningCLEStark, Wayne3 hr
Jun 27, 10:19 AM EDTSevere Thunderstorm WarningCLELucas46 min
Jun 27, 3:50 PM EDTSevere Thunderstorm WarningCLEHuron60 min
Jun 27, 4:09 PM EDTTornado WarningCLEHuron61 min
Jun 27, 4:14 PM EDTSevere Thunderstorm WarningCLELucas, Ottawa, Wood61 min
Jun 27, 4:24 PM EDTSevere Thunderstorm WarningCLEAshland, Wayne66 min
Jun 27, 4:30 PM EDTSevere Thunderstorm WarningCLESandusky65 min
Jun 27, 4:35 PM EDTTornado WarningCLEAshland, Richland65 min
Jun 27, 4:49 PM EDTFlash Flood WarningCLEKnox, Morrow2 hr
Jun 27, 5:06 PM EDTSevere Thunderstorm WarningCLEWood64 min
Jun 27, 5:09 PM EDTSevere Thunderstorm WarningCLEHolmes66 min
Jun 27, 5:27 PM EDTTornado WarningCLESeneca63 min
Jun 27, 5:32 PM EDTSevere Thunderstorm WarningCLEWayne63 min
Jun 27, 5:35 PM EDTSevere Thunderstorm WarningCLEHancock65 min
Jun 27, 5:39 PM EDTSevere Thunderstorm WarningCLELorain66 min
Jun 27, 5:40 PM EDTSevere Thunderstorm WarningCLEMedina65 min
Jun 27, 5:55 PM EDTSevere Thunderstorm WarningCLEWyandot65 min
Jun 27, 5:57 PM EDTTornado WarningCLECrawford63 min
Jun 27, 6:04 PM EDTSevere Thunderstorm WarningCLESummit66 min
Jun 27, 6:08 PM EDTSevere Thunderstorm WarningCLECuyahoga62 min
Jun 27, 6:12 PM EDTSevere Thunderstorm WarningCLEMahoning, Stark63 min
Jun 27, 6:15 PM EDTSevere Thunderstorm WarningCLERichland65 min
Jun 27, 6:20 PM EDTTornado WarningCLEStark65 min
Jun 27, 6:22 PM EDTSevere Thunderstorm WarningCLEKnox63 min
Jun 27, 6:25 PM EDTSevere Thunderstorm WarningCLEMarion, Morrow65 min
Jun 27, 6:29 PM EDTSevere Thunderstorm WarningCLEWyandot66 min
Jun 27, 6:31 PM EDTSevere Thunderstorm WarningCLEAshland64 min
Jun 27, 6:45 PM EDTFlash Flood WarningCLEKnox, Morrow2 hr
Jun 27, 6:59 PM EDTTornado WarningCLEKnox, Morrow61 min
Jun 27, 7:46 PM EDTSevere Thunderstorm WarningCLEMarion64 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; radar from the NEXRAD Level II archive.