Alert archive / Kentucky / Tornado Warnings in 1998

Tornado Warning 2, NWS Wilmington, OH

April 8, 1998Boone County, Kentucky

NWS Wilmington, OH issued this tornado warning at Apr 8, 1998, 2:40 AM EDT for Boone County, Kentucky. It was in force for 50 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, 2:40 AM EDT (06:40 UTC)
Expired
Apr 8, 1998, 3:30 AM EDT
In force
50 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Boone County, KY

The radar

The Cincinnati radar (KILN), 93 km from the middle of the area, began a volume at 06:39 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
Apr 8, 2:00 AM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.7 hours before the alert went out and 95 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 00:00Z on 1998-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1998-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 385 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1470 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
385 m²/s²
0-3 km storm-relative helicity
517 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.

581 
WFUS01 KILN 080641 RRA
TORILN
KYC015-080730-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
240 AM EDT WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 330 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHERN KENTUCKY

   ...BOONE COUNTY
 
AT 238 AM EDT...A DEVELOPING TORNADO WAS INDICATED BY WILMINGTON
DOPPLER RADAR 9 MILES WEST OF FLORENCE OR 6 MILES SOUTHWEST OF
BURLINGTON MOVING EAST NORTHEAST AT 40 MPH.

THE TORNADO IS EXPECTED TO BE AROUND...
        BURLINGTON              BY 246 AM EDT
        HEBRON                  BY 250 AM EDT
        FLORENCE                BY 251 AM EDT
        CONSTANCE               BY 257 AM EDT
 
THIS IS A DANGEROUS STORM. YOUR QUICK REACTION TO THIS TORNADO
WARNING MAY SAVE YOUR LIFE. GO TO A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE. ABANDON CARS AND MOBILE HOMES FOR A
STRONGER SHELTER. REMEMBER...MOST TORNADO DEATHS OCCUR IN MOBILE
HOMES.

RANDALL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 2:17 AM EDTSevere Thunderstorm WarningILNBoone33 min
Apr 8, 2:36 AM EDTFlash Flood WarningILNBoone3 hr
Apr 8, 3:05 AM EDTSevere Thunderstorm WarningILNCampbell, Kenton45 min
Apr 8, 3:37 AM EDTFlash Flood WarningILNCampbell, Kenton118 min

Nearby

Tornado Warnings in Kentucky, 1998Every tornado warning in 1998Tornadoes 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.