Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 414, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 22, 2000, 9:38 PM CDT for Macoupin County, Illinois. It was in force for 52 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Aug 22, 2000, 9:38 PM CDT (02:38 UTC)
- Expired
- Aug 22, 2000, 10:30 PM CDT
- In force
- 52 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Macoupin County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 22, 9:50 PM CDT | Thunderstorm Wind 55 E | Modesto, IL | |
| Aug 22, 10:00 PM CDT | Thunderstorm Wind 55 E | Virden, 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 |
|---|---|---|---|
| Aug 22, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 2.6 hours before the alert went out and 147 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
- 3363 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 915 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLSX 230239 SVRSTL ILC117-230330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 938 PM CDT TUE AUG 22 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MACOUPIN COUNTY IN CENTRAL ILLINOIS * UNTIL 1030 PM CDT * AT 938 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 13 MILES WEST OF PALMYRA...MOVING EAST AT 35 MPH. * LOCATIONS IN THE PATH... PALMYRA HETTICK READER CARLINVILLE WOMAC GIRARD LAW ENFORCEMENT REPORTED DOWNED TREES AT WHITE HALL. THIS STORM HAS A HISTORY OF DAMAGING WINDS. TAKE SHELTER IN A STURDY BUILDING IMMEDIATELY. & LAT...LON 3953 9016 3909 9014 3907 8970 3952 8971
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 7:28 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 62 min |
| Aug 22, 8:22 PM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 53 min |
| Aug 22, 9:05 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 55 min |
| Aug 22, 10:20 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 40 min |
| Aug 22, 10:55 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 35 min |
| Aug 22, 11:02 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 43 min |
| Aug 22, 11:33 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 42 min |
| Aug 23, 12:13 AM CDT | Severe Thunderstorm Warning | LSX | Marion | 62 min |
| Aug 23, 6:12 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 48 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2000Every severe thunderstorm warning in 2000
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.