Alert archive / Illinois / Tornado Warnings in 1998
Tornado Warning 33, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Apr 7, 1998, 8:24 PM CDT for DeWitt County, McLean County, Illinois. It was in force for 66 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 7, 1998, 8:24 PM CDT (01:24 UTC)
- Expired
- Apr 7, 1998, 9:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties DeWitt County, IL, McLean County, IL
The radar
The Lincoln radar (KILX), 44 km from the middle of the area, began a volume at 01:27 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 7, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.4 hours before the alert went out and 31 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.
- Mixed-layer CAPE
- 756 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
040 WFUS1 KSPI 080126 RRA TORSPI ILC039-113-080230- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 824 PM CDT TUE APR 7 1998 * TORNADO WARNING FOR EASTERN DE WITT COUNTY IN CENTRAL ILLINOIS EASTERN MCLEAN COUNTY IN CENTRAL ILLINOIS * UNTIL 930 PM CDT * SOME LOCATIONS AFFECTED LEROY DOWNS LEXINGTON FARMER CITY * AT 820 PM CDT LINCOLN DOPPLER RADAR INDICATED A POSSIBLE TORNADO SOUTHEAST OF BLOOMINGTON...MOVING NORTHEAST AT 30 MPH. TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO SEE. TAKE COVER IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST FLOOR. FRIEDERS
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 7:01 PM CDT | Tornado Warning | ILX | Vermilion | 59 min |
| Apr 7, 7:03 PM CDT | Tornado Warning | ILX | Coles, Douglas | 57 min |
| Apr 7, 7:13 PM CDT | Tornado Warning | ILX | Peoria, Tazewell | 62 min |
| Apr 7, 7:23 PM CDT | Tornado Warning | ILX | Woodford | 67 min |
| Apr 7, 7:28 PM CDT | Tornado Warning | ILX | DeWitt, McLean | 62 min |
| Apr 7, 7:39 PM CDT | Tornado Warning | ILX | Edgar | 51 min |
| Apr 7, 8:00 PM CDT | Tornado Warning | ILX | Douglas | 45 min |
| Apr 7, 8:10 PM CDT | Tornado Warning | ILX | Vermilion | 50 min |
| Apr 7, 8:28 PM CDT | Tornado Warning | ILX | Edgar | 62 min |
| Apr 7, 8:36 PM CDT | Tornado Warning | ILX | Effingham | 54 min |
| Apr 7, 9:08 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 52 min |
| Apr 7, 9:11 PM CDT | Tornado Warning | ILX | Jasper | 64 min |
| Apr 7, 9:30 PM CDT | Tornado Warning | ILX | Clay, Effingham | 60 min |
| Apr 7, 9:48 PM CDT | Tornado Warning | ILX | Champaign, Douglas | 42 min |
| Apr 7, 10:07 PM CDT | Tornado Warning | ILX | Clark | 53 min |
| Apr 7, 10:22 PM CDT | Tornado Warning | ILX | Jasper | 53 min |
| Apr 7, 10:33 PM CDT | Tornado Warning | ILX | Clay | 57 min |
| Apr 7, 11:09 PM CDT | Tornado Warning | ILX | Crawford, Jasper | 51 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.