Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 464, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 4, 2000, 3:14 PM CDT for Madison County, Illinois; Saint Louis County, Missouri. It was in force for 46 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
- Oct 4, 2000, 3:14 PM CDT (20:14 UTC)
- Expired
- Oct 4, 2000, 4:00 PM CDT
- In force
- 46 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Madison County, IL, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 53 km from the middle of the area, began a volume at 20:15 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.2 hours before the alert went out and 192 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
- 521 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLSX 042017 SVRSTL ILC119-MOC189-042100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 314 PM CDT WED OCT 4 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI MADISON COUNTY IN SOUTHWEST ILLINOIS * UNTIL 400 PM CDT * AT 314 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER WOOD RIVER...MOVING EAST AT 50 MPH. * LOCATIONS IN THE PATH... EDWARDSVILLE MARYVILLE ALTON WORDEN MARINE LIVINGSTON THE PRIMARY THREAT WILL BE LARGE HAIL. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERDE WATER COVERS THE ROAD. LAT...LON 3899 9026 3876 9056 3866 8973 3900 8975 RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 9:10 AM CDT | Severe Thunderstorm Warning | LSX | Marion | 50 min |
| Oct 4, 3:49 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton | 41 min |
| Oct 4, 4:17 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 43 min |
| Oct 4, 4:28 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton | 47 min |
| Oct 4, 4:49 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 41 min |
| Oct 4, 11:52 AM CDT | Severe Thunderstorm Warning | LSX | Gasconade, Osage | 53 min |
| Oct 4, 2:12 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 48 min |
| Oct 4, 3:03 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 42 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2000Severe Thunderstorm Warnings in Missouri, 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; radar from the NEXRAD Level II archive.