Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 18, NWS Indianapolis, IN

June 11, 1998Howard County, Indiana

NWS Indianapolis, IN issued this tornado warning at Jun 11, 1998, 7:04 PM EST for Howard County, Indiana. It was in force for 51 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 11, 1998, 7:04 PM EST (00:04 UTC)
Expired
Jun 11, 1998, 7:55 PM EST
In force
51 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Howard County, IN

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 11, 5:00 PM ESTTornado WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.1 hours before the alert went out and 214 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, Lincoln, IL at 00:00Z on 1998-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 851 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, Lincoln, IL at 00:00Z on 1998-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897Sfc1 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
851 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.7
Supercell composite
8.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 120004 RRA
TORIND
INC067-120055-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
704 PM EST THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  HOWARD COUNTY IN CENTRAL INDIANA

* UNTIL 755 PM EST

* AT 700 PM EST... SPOTTERS INDICATED A TORNADO 2 MILES EAST OF US31
  ON STATE ROAD 26 NEAR OAKFORD... MOVING NORTHEAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO PASS NEvAR...
  CENTER
  GREENTOWN
  SYCAMORE

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

DRT


&

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:19 PM ESTTornado WarningINDRandolph61 min
Jun 11, 7:31 PM ESTSevere Thunderstorm WarningINDGreene, Lawrence, Martin49 min
Jun 11, 7:31 PM ESTSevere Thunderstorm WarningINDDaviess49 min
Jun 11, 7:49 PM ESTTornado WarningINDMadison36 min
Jun 11, 7:53 PM ESTTornado WarningINDHendricks, Marion47 min
Jun 11, 8:09 PM ESTTornado WarningINDHamilton46 min
Jun 11, 8:25 PM ESTTornado WarningINDHoward30 min
Jun 11, 8:29 PM ESTTornado WarningINDTipton31 min
Jun 11, 8:51 PM ESTSevere Thunderstorm WarningINDJackson34 min
Jun 11, 9:23 PM ESTSevere Thunderstorm WarningINDRandolph32 min
Jun 12, 4:01 PM ESTFlash Flood WarningINDCarroll, Tippecanoe3 hr
Jun 12, 4:01 PM ESTFlash Flood WarningINDFountain, Warren3 hr
Jun 12, 4:33 PM ESTSevere Thunderstorm WarningINDTippecanoe47 min
Jun 12, 4:55 PM ESTSevere Thunderstorm WarningINDCarroll45 min
Jun 12, 4:59 PM ESTFlash Flood WarningINDClinton, Howard4 hr
Jun 12, 4:59 PM ESTFlash Flood WarningINDMontgomery4 hr
Jun 12, 5:17 PM ESTTornado WarningINDHoward48 min
Jun 12, 6:13 PM ESTSevere Thunderstorm WarningINDBoone, Hendricks47 min
Jun 12, 6:17 PM ESTSevere Thunderstorm WarningINDMarion48 min
Jun 12, 6:32 PM ESTSevere Thunderstorm WarningINDDelaware, Madison33 min
Jun 12, 6:36 PM ESTSevere Thunderstorm WarningINDVigo49 min
Jun 12, 6:45 PM ESTSevere Thunderstorm WarningINDHancock50 min
Jun 12, 6:49 PM ESTSevere Thunderstorm WarningINDClay36 min
Jun 12, 6:58 PM ESTSevere Thunderstorm WarningINDHenry32 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.