Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 406, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 17, 2000, 10:46 PM CDT for Bond County, Illinois. It was in force for 44 min. No storm report in the archive falls 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.
The facts
- Issued
- Aug 17, 2000, 10:46 PM CDT (03:46 UTC)
- Expired
- Aug 17, 2000, 11:30 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Bond County, IL
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 17, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.8 hours before the alert went out and 159 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
- 4438 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 18.2
The text
As transmitted, in the capitals the NWS used until 2016.
545 WUUS53 KLSX 180348 SVRSTL ILC005-180430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1046 PM CDT THU AUG 17 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BOND COUNTY IN SOUTH CENTRAL ILLINOIS * UNTIL 1130 PM CDT * AT 1046 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF POCAHONTAS...MOVING EAST NORTHEAST AT 35 MPH. * LOCATIONS IN THE PATH... GREENVILLE RENO WOBURN POCAHONTAS PIERRON DUDLEYVILLE THE PRIMARY THREAT POSED BY THIS STORM IS DAMAGING WINDS. MOVE QUICKLY TO THE INTERIOR PORTION OF A STURDY SHELTER...AND STAY AWAY FROM OUTSIDE WALLS AND WINDOWS. LAT...LON 3898 8965 3874 8957 3875 8928 3903 8926 GKS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 8:04 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 41 min |
| Aug 17, 8:20 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 40 min |
| Aug 17, 8:28 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 47 min |
| Aug 17, 8:29 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 46 min |
| Aug 17, 8:54 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 51 min |
| Aug 17, 8:58 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 47 min |
| Aug 17, 9:15 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 45 min |
| Aug 17, 9:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 47 min |
| Aug 17, 9:50 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 40 min |
| Aug 17, 10:25 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 50 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; the sounding from the Mesonet's radiosonde archive.