Alert archive / Illinois / Tornado Warnings in 1998

Tornado Warning 112, NWS Lincoln, IL

June 29, 19984 counties in Illinois

NWS Lincoln, IL issued this tornado warning at Jun 29, 1998, 4:57 PM CDT for 4 counties in Illinois. It was in force for 78 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 29, 1998, 4:57 PM CDT (21:57 UTC)
Expired
Jun 29, 1998, 6:15 PM CDT
In force
78 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Christian County, IL, DeWitt County, IL, Macon County, IL, Piatt County, IL

The radar

The Lincoln radar (KILX), 44 km from the middle of the area, began a volume at 22:01 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.

What was reported inside it

TimeReportWhereRemark
Jun 29, 5:10 PM CDTThunderstorm Wind 96Countywide, ILIn DeWitt County, a strong microburst (100 to 110 mph) hit around the Clinton Nuclear Power Plant facility and the adjacent Clinton Lake recreation area. The nuclear plant lost three high voltage transmission lines, though there was no structural damage to th
Jun 29, 5:25 PM CDTThunderstorm WindCountywide, ILAs the bow echo moved through Macon County, the Maroa area sustained considerable damage. A high-tension transmission line was blown down across US 51. Eight structures which carried the line were damaged and a nearby barn and shed were destroyed. No injuri
Jun 29, 5:31 PM CDTThunderstorm WindCountywide, IL
Jun 29, 5:34 PM CDTThunderstorm WindCountywide, IL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 29, 3:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.0 hours before the alert went out and 40 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 12:00Z on 1998-06-29Temperature 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, Lincoln, IL at 12:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 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
2020 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
71 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.

317 
WFUS1 KSPI 292157 RRA
TORSPI
ILC021-039-115-147-292315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
457 PM CDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  CHRISTIAN COUNTY IN CENTRAL ILLINOIS
  DE WITT COUNTY IN CENTRAL ILLINOIS
  MACON COUNTY IN CENTRAL ILLINOIS
  PIATT COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 615 PM CDT

* AT 450 PM CDT... LINCOLN DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...WITH SEVERAL POSSIBLE TORNADOES. THE LINE OF STORMS
  EXTENDED FROM 25 MILES NORTHWEST OF CLINTON...TO 35 MILES
  NORTHWEST OF DECATUR...TO 40 MILES NORTHWEST OF TAYLORVILLE.  THE
  LINE OF STORMS IS MOVING SOUTHEAST  AT 50 MPH.

* THESE STORMS ARE EXPECTED TO AFFECT AREAS AROUND...
  FARMER CITY
  CLINTON
  MAROA
  DECATUR
  MONTICELLO
  TAYLORVILLE

THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE

THIS IS A VERY DANGEROUS SITUATION. TAKE COVER IN A BASEMENT OR
INTERIOR ROOM ON THE LOWEST FLOOR. ACT QUICKLY YOUR LIFE MAY
DEPEND ON IT.

GEELHART/AUTEN

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 7:28 PM CDTSevere Thunderstorm WarningILXFulton62 min
Jun 28, 7:43 PM CDTSevere Thunderstorm WarningILXLogan, Mason62 min
Jun 28, 7:48 PM CDTSevere Thunderstorm WarningILXMenard57 min
Jun 28, 7:55 PM CDTSevere Thunderstorm WarningILXScott65 min
Jun 28, 8:06 PM CDTSevere Thunderstorm WarningILXTazewell69 min
Jun 28, 8:24 PM CDTSevere Thunderstorm WarningILXDeWitt, Macon66 min
Jun 28, 8:32 PM CDTSevere Thunderstorm WarningILXMcLean73 min
Jun 28, 9:06 PM CDTSevere Thunderstorm WarningILXPiatt39 min
Jun 28, 9:16 PM CDTSevere Thunderstorm WarningILXChampaign59 min
Jun 28, 9:43 PM CDTSevere Thunderstorm WarningILXVermilion62 min
Jun 28, 10:02 PM CDTSevere Thunderstorm WarningILXCass, Schuyler58 min
Jun 28, 10:15 PM CDTSevere Thunderstorm WarningILXMason60 min
Jun 28, 10:34 PM CDTSevere Thunderstorm WarningILXMenard56 min
Jun 28, 11:06 PM CDTSevere Thunderstorm WarningILXLogan39 min
Jun 29, 3:47 PM CDTTornado WarningILXKnox58 min
Jun 29, 4:02 PM CDTTornado WarningILXFulton58 min
Jun 29, 4:06 PM CDTTornado WarningILXPeoria, Stark69 min
Jun 29, 4:08 PM CDTTornado WarningILXSchuyler67 min
Jun 29, 4:27 PM CDTTornado WarningILXMason, Tazewell63 min
Jun 29, 4:27 PM CDTTornado WarningILXCass63 min
Jun 29, 4:36 PM CDTTornado WarningILXWoodford69 min
Jun 29, 4:41 PM CDTTornado WarningILXMarshall64 min
Jun 29, 4:47 PM CDTTornado WarningILXLogan, McLean73 min
Jun 29, 4:47 PM CDTTornado WarningILXMenard, Sangamon73 min
Jun 29, 4:47 PM CDTTornado WarningILXMorgan, Scott73 min
Jun 29, 5:21 PM CDTTornado WarningILXMoultrie, Shelby69 min
Jun 29, 5:21 PM CDTTornado WarningILXChampaign, Douglas69 min
Jun 29, 5:24 PM CDTTornado WarningILXTazewell36 min
Jun 29, 5:31 PM CDTTornado WarningILXEdgar, Vermilion74 min
Jun 29, 5:31 PM CDTTornado WarningILXColes, Cumberland74 min
Jun 29, 6:16 PM CDTTornado WarningILXChristian, Macon, Piatt29 min
Jun 29, 6:28 PM CDTTornado WarningILXDouglas, Moultrie, Shelby47 min
Jun 29, 6:28 PM CDTTornado WarningILXChampaign47 min
Jun 29, 6:30 PM CDTTornado WarningILXClark, Effingham, Jasper75 min
Jun 29, 6:35 PM CDTTornado WarningILXColes, Cumberland, Edgar55 min
Jun 29, 6:35 PM CDTTornado WarningILXVermilion55 min
Jun 29, 6:44 PM CDTSevere Thunderstorm WarningILXFulton, Schuyler61 min
Jun 29, 6:51 PM CDTTornado WarningILXClay, Richland69 min
Jun 29, 6:51 PM CDTTornado WarningILXCrawford69 min

Nearby

Tornado Warnings in Illinois, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.