Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 21, NWS Louisville, KY

April 16, 1998Orange County, Indiana

NWS Louisville, KY issued this tornado warning at Apr 16, 1998, 1:07 AM EST for Orange County, Indiana. It was in force for 23 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 16, 1998, 1:07 AM EST (06:07 UTC)
Expired
Apr 16, 1998, 1:30 AM EST
In force
23 min
Issued by
NWS Louisville, KY
Area
Whole counties

County Orange County, IN

The radar

The Louisville radar (KLVX), 79 km from the middle of the area, began a volume at 06:09 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 15, 8:45 PM ESTTornado WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.1 hours before the alert went out and 253 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 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 160607 RRA
TORSDF
INC117-160630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
207 AM EDT THU APR 16 1998

* TORNADO WARNING FOR
  SOUTHEASTERN ORANGE COUNTY - SOUTH CENTRAL INDIANA

* UNTIL 130 AM EST (230 AM EDT)

* SOME LOCATIONS AFFECTED
  CHAMBERSBURG BY 115 AM EST

* AT 100 AM EST WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE
TORNADO JUST EAST OF PAOLI OR 40 MILES NORTHWEST OF LOUISVILLE. THE
TORNADO WAS MOVING TO THE EAST 50 MPH.

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
TORNADO...SEEK SHELTER IMMEDIATELY IN A BASEMENT OR INTERIOR ROOM
ON THE LOWEST FLOOR OF YOUR HOME OR BUILDING. ABANDON MOBILE HOMES.

SCHOLZ/COX

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 9:07 PM ESTTornado WarningLMKOrange43 min
Apr 16, 12:26 AM ESTTornado WarningLMKDubois34 min
Apr 16, 1:30 AM ESTSevere Thunderstorm WarningLMKCrawford30 min
Apr 16, 1:41 AM ESTSevere Thunderstorm WarningLMKHarrison, Washington34 min

Nearby

Tornado Warnings in Indiana, 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.