Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 405, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 17, 2000, 10:25 PM CDT for Clinton County, Illinois. It was in force for 50 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, 10:25 PM CDT (03:25 UTC)
- Expired
- Aug 17, 2000, 11:15 PM CDT
- In force
- 50 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Clinton 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, 3.4 hours before the alert went out and 190 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.
325 WUUS53 KLSX 180327 SVRSTL ILC027-180415- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1025 PM CDT THU AUG 17 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS * UNTIL 1115 PM CDT * AT 1025 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSER OF SEVERE THUNDERSTORMS OVER NORTHEAST ST. CLAIR COUNTY... MOVING EAST AT 30 TO 40 MPH. * LOCATIONS IN THE PATH... TRENTON ALBERS AVISTON GERMANTOWN BREESE BECKEMEYER 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 WHERE WATER COVERS THE ROAD. THIS STORM HAS A HISTORY OF DAMAGING WINDS...IN EXCESS OF 60 MPH. TAKE SHELTER IN A STURDY BUILDING IMMEDIATELY. LAT...LON 3867 8973 3846 8971 3848 8914 3867 8913 TRUETT
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, 10:46 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 44 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.