Alert archive / Illinois / Tornado Warnings in 1998

Tornado Warning 78, NWS St. Louis, MO

June 14, 1998Randolph County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 14, 1998, 4:19 PM CDT for Randolph County, Illinois. It was in force for 61 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 14, 1998, 4:19 PM CDT (21:19 UTC)
Expired
Jun 14, 1998, 5:20 PM CDT
In force
61 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Randolph County, IL

The radar

The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 21:20 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
Jun 14, 3:00 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.3 hours before the alert went out and 256 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 1998-06-14Temperature 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 1998-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
1254 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
30 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.

000 
TTAA00 KSTL 142118 RRA
TORSTL
ILC157-142220-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
419 PM CDT SUN JUN 14 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS

* UNTIL 520 PM CDT

* AT AT 417 PM... SEVERE STORM SPOTTERS INDICATED A TORNADO 10 MILES
  SOUTHWEST OF SPARTA... MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IN THE PATH...
  SPARTA
  BLAIR
  EDEN
  COULTERVILLE

THIS IS A DANGEROUS SITUATION! IF IN THE PATH...TAKE COVER NOW!
MOVE TO A BASEMENT IF AVAILABLE. IF NOT...STAY ON THE LOWEST LEVEL
AND GO TO A SMALL INTERIOR ROOM. MOBILE HOMES AND AUTOMOBILESHOULD
BE ABANDONED IN FAVOR OFt A STRONG STRUCTURE. AS A LAST RESORT...
MOVE TO A DITCH OR CULVERT AND COVER YOUR HEAD.

AMS/DF

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 6:54 AM CDTSevere Thunderstorm WarningLSXCalhoun31 min
Jun 14, 7:03 AM CDTTornado WarningLSXJersey32 min
Jun 14, 7:13 AM CDTSevere Thunderstorm WarningLSXMadison47 min
Jun 14, 7:31 AM CDTSevere Thunderstorm WarningLSXMacoupin34 min
Jun 14, 7:54 AM CDTSevere Thunderstorm WarningLSXBond, Clinton66 min
Jun 14, 7:54 AM CDTSevere Thunderstorm WarningLSXMontgomery66 min
Jun 14, 8:20 AM CDTSevere Thunderstorm WarningLSXFayette45 min
Jun 14, 8:32 AM CDTSevere Thunderstorm WarningLSXMarion, Washington48 min
Jun 14, 3:35 PM CDTTornado WarningLSXCalhoun, Pike65 min
Jun 14, 3:43 PM CDTSevere Thunderstorm WarningLSXAdams52 min
Jun 14, 4:04 PM CDTSevere Thunderstorm WarningLSXRandolph61 min
Jun 14, 4:08 PM CDTTornado WarningLSXAdams32 min
Jun 14, 4:24 PM CDTTornado WarningLSXGreene61 min
Jun 14, 4:38 PM CDTTornado WarningLSXAdams, Brown62 min
Jun 14, 5:14 PM CDTTornado WarningLSXJersey, Macoupin, Madison61 min
Jun 14, 5:34 PM CDTTornado WarningLSXGreene61 min
Jun 14, 6:15 PM CDTTornado WarningLSXBond, Macoupin, Madison, Montgomery50 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.