Alert archive / Illinois / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 39, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Apr 30, 2003, 10:31 PM CDT for Knox County, Illinois. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2003, 10:31 PM CDT (03:31 UTC)
- Expired
- Apr 30, 2003, 11:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Lincoln, IL
- Area
- Counties, with a storm outline in the text
County Knox County, IL
The radar
The Quad Cities radar (KDVN), 75 km from the middle of the area, began a volume at 03:34 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 30, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 3.5 hours before the alert went out and 74 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
- 1022 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 839 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 457 m²/s²
- 0-3 km storm-relative helicity
- 611 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.6
The text
As transmitted, in the capitals the NWS used until 2016.
977 WUUS53 KILX 010331 SVRILX ILC095-010430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 1029 PM CDT WED APR 30 2003 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KNOX COUNTY IN WEST CENTRAL ILLINOIS * UNTIL 1130 PM CDT * AT 1029 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM RIO TO 13 MILES WEST OF ABINGDON...MOVING EAST AT 30 MPH. IN ADDITION...OTHER SEVERE THUNDERSTORMS EXTENDED FROM ALTONA TO WATAGA...AND WERE ALSO MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORMS WILL BE NEAR... GALESBURG WATAGA ONEIDA ABINGDON ALTONA KNOXVILLE VICTORIA GILSON THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH... DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS. REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESDA...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY TUNED FOR LATER STATEMENTS. LAT...LON 4116 9043 4072 9044 4073 9000 4115 8999 $$ GOETSCH NNNN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 7:12 PM CDT | Tornado Warning | ILX | Knox | 63 min |
| Apr 30, 8:17 PM CDT | Tornado Warning | ILX | Knox | 58 min |
| Apr 30, 8:35 PM CDT | Tornado Warning | ILX | Stark | 55 min |
| Apr 30, 9:16 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 74 min |
| Apr 30, 9:31 PM CDT | Severe Thunderstorm Warning | ILX | Stark | 59 min |
| Apr 30, 9:44 PM CDT | Flash Flood Warning | ILX | Knox, Stark | 6 hr |
| Apr 30, 9:44 PM CDT | Severe Thunderstorm Warning | ILX | Marshall | 61 min |
| May 1, 1:17 AM CDT | Flash Flood Warning | ILX | Marshall | 6 hr |
| May 1, 1:44 AM CDT | Tornado Warning | ILX | McLean | 31 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2003Every severe thunderstorm warning in 2003
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.