Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 21, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Apr 5, 1997, 4:33 PM CST for Champaign County, Illinois. It was in force for 57 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 5, 1997, 4:33 PM CST (22:33 UTC)
- Expired
- Apr 5, 1997, 5:30 PM CST
- In force
- 57 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Champaign County, IL
The radar
The Lincoln radar (KILX), 97 km from the middle of the area, began a volume at 22:35 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 5, 2:30 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 34 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
- 502 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 118 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 052236 RRA SVRSPI ILC019-052330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 433 PM CST SAT APR 5 1997 * SEVERE THUNDERSTORM WARNING FOR CHAMPAIGN COUNTY - EAST CENTRAL ILLINOIS * UNTIL 530 PM CST * SOME LOCATIONS AFFECTED RANTOUL CHAMPAIGN-URBANA TOLONO * AT 432 PM CST LINCOLN DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 15 MILES EAST OF BLOOMINGTON TO 20 MILES SOUTHWEST OF CHAMPAIGN...MOVING NORTH NORTHEAST AT 45 MPH. * NUMEROUS REPORTS OF WIND DAMAGE HAVE BEEN RECEIVED WITH THESE STORMS. THIS STORM IS CAPABLE OF BLOWING DOWN TREES AND DAMAGING ROOFS AND WINDOWS. MOVE TO A STURDY BUILDING AND STAY AWA&Y FROM WINDOWS. BYRD
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 2:30 PM CST | Severe Thunderstorm Warning | ILX | Fulton, Knox | 30 min |
| Apr 5, 2:46 PM CST | Severe Thunderstorm Warning | ILX | Mason, Menard, Sangamon | 29 min |
| Apr 5, 3:00 PM CST | Severe Thunderstorm Warning | ILX | Logan, Peoria, Tazewell | 45 min |
| Apr 5, 3:00 PM CST | Severe Thunderstorm Warning | ILX | Stark | 45 min |
| Apr 5, 3:16 PM CST | Severe Thunderstorm Warning | ILX | Christian, Sangamon | 29 min |
| Apr 5, 3:36 PM CST | Severe Thunderstorm Warning | ILX | McLean, Woodford | 39 min |
| Apr 5, 3:36 PM CST | Severe Thunderstorm Warning | ILX | Marshall | 39 min |
| Apr 5, 3:41 PM CST | Severe Thunderstorm Warning | ILX | DeWitt, Macon | 34 min |
| Apr 5, 4:11 PM CST | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Piatt | 34 min |
| Apr 5, 4:11 PM CST | Severe Thunderstorm Warning | ILX | McLean | 34 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning in 1997
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.