Alert archive / Illinois / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 109, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jun 11, 1998, 4:04 PM CDT for Woodford County, Illinois. It was in force for 41 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, 4:04 PM CDT (21:04 UTC)
- Expired
- Jun 11, 1998, 4:45 PM CDT
- In force
- 41 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Woodford County, IL
The radar
The Lincoln radar (KILX), 72 km from the middle of the area, began a volume at 21:05 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 |
|---|---|---|---|
| Jun 11, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.1 hours before the alert went out and 88 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 6598 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 2:33 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, Jun 11, 2:33 PM CDT, 1 hour 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 233 PM CDT THU JUN 11 1998 SVR HAS BEEN ISSUED FOR MOST OF CWA...THO BELIEVE MOST OF CWA HAS BEEN WORKED OVER BY PREVIOUS PCPN...AND NEW ACTIVITY HAS NOT BEEN REAL IMPRESSIVE. 18Z SFC ANALYSIS HAS WF OVR NRN IL WITH DEWPTS IN THE 70S ACROSS CWA. FOR TONIGHT...RW/TRW ACTIVITY WILL DIMINISH THIS EVENING. CF WILL STALL OUT OVER CWA...SO LOW TEMPS TONIGHT WILL ONLY DROP INTO THE MIDDLE TO UPPER 60S. BETTER CHANCE FOR MORE ACTIVITY BY LATE TOMORROW AFTERNOON. HIGHS IN THE MIDDLE 80S TO NEAR 90 FOR CWA...AS PER CURRENT FORECAST. FIRST PERIOD INPUT WILL FOLLOW SHORTLY. PIA 65/85 +3 SPI 66/87 +2 DEC 66/88 +2 CMI 65/872 +3 LWV 68/90 83 BYRD
In the hours before
Special weather statement, Jun 11, 11:00 AM CDT, 5 hours 4 minutes before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-121100- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 1100 AM CDT THU JUN 11 1998 A WEATHER SYSTEM IN THE PLAINS WILL MOVE INTO ILLINOIS AND COMBINE WITH WARM MOIST AIR FROM THE GULF TO TRIGGER MORE SHOWERS AND THUNDERSTORMS ACROSS CENTRAL AND SOUTHEASTERN ILLINOIS THIS AFTERNOON AND INTO TONIGHT. SOME OF THE STORMS COULD BECOME SEVERE...THEREFORE SPOTTER ACTIVATION MAY BE REQU IRED THIS AFTERNOON AND INTO TONIGHT. BYRD
Special weather statement, Jun 11, 11:00 AM CDT, 5 hours 4 minutes before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-121100- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 1100 AM CDT THU JUN 11 1998 A WEATHER SYSTEM IN THE PLAINS WILL MOVE INTO ILLINOIS AND COMBINE WITH WARM MOIST AIR FROM THE GULF TO TRIGGER MORE SHOWERS AND THUNDERSTORMS ACROSS CENTRAL AND SOUTHEASTERN ILLINOIS THIS AFTERNOON AND INTO TONIGHT. SOME OF THE STORMS COULD BECOME SEVERE...THEREFORE SPOTTER ACTIVATION MAY BE REQU IRED THIS AFTERNOON AND INTO TONIGHT. BYRD
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 2:58 PM CDT | Tornado Warning | ILX | Morgan, Sangamon | 47 min |
| Jun 11, 3:42 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 48 min |
| Jun 11, 3:46 PM CDT | Tornado Warning | ILX | Sangamon | 44 min |
| Jun 11, 3:55 PM CDT | Tornado Warning | ILX | Knox, Stark | 35 min |
| Jun 11, 4:11 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon | 49 min |
| Jun 11, 4:36 PM CDT | Severe Thunderstorm Warning | ILX | Moultrie, Piatt | 54 min |
| Jun 11, 4:36 PM CDT | Severe Thunderstorm Warning | ILX | Shelby | 54 min |
| Jun 11, 4:49 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 56 min |
| Jun 11, 5:13 PM CDT | Tornado Warning | ILX | Moultrie, Shelby | 47 min |
| Jun 11, 5:25 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 35 min |
| Jun 11, 6:02 PM CDT | Severe Thunderstorm Warning | ILX | Richland | 43 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1998Every severe thunderstorm warning 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.