Alert archive / Illinois / Tornado Warnings in 1998
Tornado Warning 55, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at May 12, 1998, 7:00 PM CDT for Morgan County, Scott County, Illinois. It was in force for 60 min. 1 report 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
- May 12, 1998, 7:00 PM CDT (00:00 UTC)
- Expired
- May 12, 1998, 8:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Morgan County, IL, Scott County, IL
The radar
The Lincoln radar (KILX), 100 km from the middle of the area, began a volume at 00:03 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 7:45 PM CDT | Hail 0.75 | Waverly, 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.0 hours before the alert went out and 157 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
- 1906 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1317 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.2
The text
As transmitted, in the capitals the NWS used until 2016.
262 WFUS1 KSPI 130001 RRA TORSPI ILC137-171-130100- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 700 PM CDT TUE MAY 12 1998 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR MORGAN COUNTY IN CENTRAL ILLINOIS SCOTT COUNTY IN WEST CENTRAL ILLINOIS * UNTIL 800 PM CDT * AT 7 PM CDT LINCOLN DOPPLER RADAR INDICATED A POSSIBLE TORNADO 12 MILES SOUTHWEST OF JACKSONVILLE...MOVING EAST NORTHEAST AT 25 MPH. * THIS STORM IS EXPECTED TO AFFECT AREAS AROUND... LYNNVILLE JACKSONVILLE MURRAYVILLE FRANKLIN IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST FLOOR. VEHICLES AND MOBILE HOMES SHOULD BE ABANDONED FOR A SAFER SHELTER. FRIEDERS
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:18 PM CDT | Tornado Warning | ILX | Menard | 57 min |
| May 12, 7:22 PM CDT | Tornado Warning | ILX | Sangamon | 53 min |
| May 12, 7:26 PM CDT | Tornado Warning | ILX | Fulton | 64 min |
| May 12, 7:32 PM CDT | Flash Flood Warning | ILX | Fulton | 118 min |
| May 12, 7:37 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 53 min |
| May 12, 7:43 PM CDT | Tornado Warning | ILX | Mason | 62 min |
| May 12, 7:59 PM CDT | Tornado Warning | ILX | Tazewell | 61 min |
| May 12, 8:36 PM CDT | Tornado Warning | ILX | Logan, Mason, Menard | 69 min |
| May 12, 9:13 PM CDT | Tornado Warning | ILX | Sangamon | 47 min |
| May 12, 9:36 PM CDT | Tornado Warning | ILX | Christian | 54 min |
| May 12, 9:40 PM CDT | Tornado Warning | ILX | Logan | 50 min |
| May 12, 9:50 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 70 min |
| May 12, 9:55 PM CDT | Tornado Warning | ILX | Macon | 65 min |
| May 12, 10:04 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 56 min |
| May 12, 10:12 PM CDT | Tornado Warning | ILX | Shelby | 63 min |
| May 12, 10:38 PM CDT | Tornado Warning | ILX | Piatt | 52 min |
| May 12, 11:25 PM CDT | Tornado Warning | ILX | Champaign | 65 min |
| May 13, 12:20 AM CDT | Tornado Warning | ILX | Vermilion | 55 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.