Alert archive / Ohio / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 17, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 8, 1998, 3:03 PM EDT for Knox County, Ohio. It was in force for 57 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
- Apr 8, 1998, 3:03 PM EDT (19:03 UTC)
- Expired
- Apr 8, 1998, 4:00 PM EDT
- In force
- 57 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 19:03 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 8, 1:15 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.1 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.
- Mixed-layer CAPE
- 55 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
699 WUUS1 KCLE 081906 RRA SVRCLE OHC083-082000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 303 PM EDT WED APR 8 1998 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN OHIO ...KNOX COUNTY AT 305 PM...DOPPLER RADAR INDICATED A CLUSTER OF SEVERE THUNDERSTORMS OVER KNOX COUNTY. THE STORMS WERE MOVING NORTHEAST AROUND 25 MPH. RADAR INDICATED THAT LARGE HAIL SHOULD OCCUR WITH THESE STORMS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. GABRIC
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, Apr 8, 1:32 PM EDT, 1 hour 31 minutes before
OHZ027>032-036>038-047-082300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 132 PM EDT WED APR 8 1998 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH IN EFFECT ACROSS PORTIONS OF NORTH CENTRAL OHIO THROUGH 7PM THIS EVENING... A WARM FRONT WHICH MOVED NORTHWARD ACROSS THE OHIO VALLEY THIS MORNING...HAS ALLOWED WARMER AND MORE UNSTABLE AIR TO SPREAD ACROSS SOUTHERN AND CENTRAL OHIO THROUGH THIS AFTERNOON. ADDITIONALLY...A COLD FRONT AND AN UPPER LEVEL DISTURBANCE ARE APPROACHING FROM THE MIDWEST AND AS THE COLD FRONT AND UPPER LEVEL DISTURBANCE MOVE EASTWARD AND INTERACT WITH THE UNSTABLE AIRMASS...THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL INCREASE ACROSS THE WATCH AREA. THE THUNDERSTORMS MAY CONTAIN STRONG GUSTY WINDS IN EXCESS OF 60 MILES PER HOUR AND LARGE HAIL. A FEW THUNDERSTORMS MAY EVEN CONTAIN TORNADOES. THE COUNTIES INCLUDED IN THE WATCH ARE: WYANDOT...MARION...MORROW...CRAWFORD...RICHLAND...ASHLAND...WAYNE ...STARK...KNOX AND HOLMES. STAY TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE NEWS MEDIA OR LOCAL EMERGENCY MANAGEMENT OFFICIALS FOR THE LATEST STATEMENTS AND WARNINGS. MILLER
Special weather statement, Apr 8, 1:32 PM EDT, 1 hour 31 minutes before
OHZ027>032-036>038-047-082300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 132 PM EDT WED APR 8 1998 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH IN EFFECT ACROSS PORTIONS OF NORTH CENTRAL OHIO THROUGH 7PM THIS EVENING... A WARM FRONT WHICH MOVED NORTHWARD ACROSS THE OHIO VALLEY THIS MORNING...HAS ALLOWED WARMER AND MORE UNSTABLE AIR TO SPREAD ACROSS SOUTHERN AND CENTRAL OHIO THROUGH THIS AFTERNOON. ADDITIONALLY...A COLD FRONT AND AN UPPER LEVEL DISTURBANCE ARE APPROACHING FROM THE MIDWEST AND AS THE COLD FRONT AND UPPER LEVEL DISTURBANCE MOVE EASTWARD AND INTERACT WITH THE UNSTABLE AIRMASS...THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL INCREASE ACROSS THE WATCH AREA. THE THUNDERSTORMS MAY CONTAIN STRONG GUSTY WINDS IN EXCESS OF 60 MILES PER HOUR AND LARGE HAIL. A FEW THUNDERSTORMS MAY EVEN CONTAIN TORNADOES. THE COUNTIES INCLUDED IN THE WATCH ARE: WYANDOT...MARION...MORROW...CRAWFORD...RICHLAND...ASHLAND...WAYNE ...STARK...KNOX AND HOLMES. STAY TUNED TO NOAA WEATHER RADIO...LOCAL AND CABLE NEWS MEDIA OR LOCAL EMERGENCY MANAGEMENT OFFICIALS FOR THE LATEST STATEMENTS AND WARNINGS. MILLER
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 1:19 PM EDT | Severe Thunderstorm Warning | CLE | Sandusky | 41 min |
| Apr 8, 1:58 PM EDT | Severe Thunderstorm Warning | CLE | Ottawa | 62 min |
| Apr 8, 2:02 PM EDT | Severe Thunderstorm Warning | CLE | Sandusky | 43 min |
| Apr 8, 2:19 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 41 min |
| Apr 8, 3:01 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 59 min |
| Apr 8, 3:18 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga | 57 min |
| Apr 8, 3:22 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Richland | 68 min |
| Apr 8, 3:41 PM EDT | Tornado Warning | CLE | Cuyahoga, Geauga | 64 min |
| Apr 8, 3:53 PM EDT | Severe Thunderstorm Warning | CLE | Lake | 67 min |
| Apr 8, 3:57 PM EDT | Severe Thunderstorm Warning | CLE | Stark, Summit, Wayne | 63 min |
| Apr 8, 4:17 PM EDT | Severe Thunderstorm Warning | CLE | Medina | 43 min |
| Apr 8, 4:48 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Trumbull | 57 min |
| Apr 8, 7:16 PM EDT | Severe Thunderstorm Warning | CLE | Holmes | 44 min |
| Apr 8, 7:23 PM EDT | Severe Thunderstorm Warning | CLE | Medina | 37 min |
| Apr 8, 7:38 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Summit | 52 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.