Alert archive / Illinois / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 21, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Feb 27, 1999, 2:47 PM CST for Richland County, Illinois. It was in force for 58 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
- Feb 27, 1999, 2:47 PM CST (20:47 UTC)
- Expired
- Feb 27, 1999, 3:45 PM CST
- In force
- 58 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Richland County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 27, 3:00 PM CST | Thunderstorm Wind | Olney, IL | Several large trees were blown down in Olney. One mile north of Parkersburg, a trailer home sustained minor damage and a shed was destroyed. |
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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 166 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
- 107 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 275 m²/s²
- 0-3 km storm-relative helicity
- 325 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSPI 272045 RRA SVRSPI ILC159-272145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 247 PM CST SAT FEB 27 1999 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RICHLAND COUNTY IN SOUTHEASTERN ILLINOIS * UNTIL 345 PM CST * AT 242 PM CST... DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM 12 NORTHWEST OF OLNEY TO 15 SOUTHWEST OF OLNEY...MOVING EAST NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OLNEY NOBLE CLAREMONT THIS STORM HAS A HISTORY OF PRODUCING ONE INCH HAIL. DAMAGING WINDS AND LARGE HAIL CAN BE EXPECTED. MOVE TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. REMEMBER...SEVERE THUNDERSTORMS MAY PRODUCE TORNADOES AT ANY TIME. FRIEDERS
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 12:45 PM CST | Severe Thunderstorm Warning | ILX | Coles | 30 min |
| Feb 27, 1:08 PM CST | Severe Thunderstorm Warning | ILX | Effingham | 52 min |
| Feb 27, 1:14 PM CST | Severe Thunderstorm Warning | ILX | Edgar | 46 min |
| Feb 27, 1:26 PM CST | Severe Thunderstorm Warning | ILX | Cumberland | 49 min |
| Feb 27, 1:45 PM CST | Severe Thunderstorm Warning | ILX | Vermilion | 45 min |
| Feb 27, 1:56 PM CST | Severe Thunderstorm Warning | ILX | Effingham | 49 min |
| Feb 27, 2:01 PM CST | Severe Thunderstorm Warning | ILX | Clark | 59 min |
| Feb 27, 2:12 PM CST | Severe Thunderstorm Warning | ILX | Clay | 48 min |
| Feb 27, 2:49 PM CST | Severe Thunderstorm Warning | ILX | Jasper | 56 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1999Every severe thunderstorm warning in 1999
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.