Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 268, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 24, 2000, 2:51 PM CDT for Saint Clair County, Illinois. It was in force for 39 min. 1 report 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
- Jun 24, 2000, 2:51 PM CDT (19:51 UTC)
- Expired
- Jun 24, 2000, 3:30 PM CDT
- In force
- 39 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Saint Clair County, IL
The radar
The St Louis radar (KLSX), 72 km from the middle of the area, began a volume at 19:51 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 24, 3:10 PM CDT | Thunderstorm Wind 52 E | Mascoutah, IL | Storm spotters reported trees down in Mascoutah. |
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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.9 hours before the alert went out and 216 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
- 5 J/kg
- Mixed-layer CIN
- -319 J/kg
- Mixed-layer LCL
- 1120 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 178 m²/s²
- 0-3 km storm-relative helicity
- 232 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 241952 SVRSTL ILC163-242030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 251 PM CDT SAT JUN 24 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS * UNTIL 330 PM CDT * AT 251 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER BELLEVILLE...MOVING EAST AT 35 MPH. * LOCATIONS IN THE PATH... FREEBURG SHILOH O'FALLON SCOTT AFB MASCOUTAH LEBANON 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. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANACE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. LAT...LON 3866 9009 3823 8991 3822 8971 3867 8972 LENNING/GKS/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 48 min |
| Jun 23, 7:30 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 45 min |
| Jun 23, 7:43 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 47 min |
| Jun 23, 8:00 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 45 min |
| Jun 23, 8:07 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 38 min |
| Jun 23, 8:11 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 49 min |
| Jun 23, 8:17 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 43 min |
| Jun 23, 8:45 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 45 min |
| Jun 23, 8:49 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 41 min |
| Jun 23, 8:59 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 46 min |
| Jun 23, 9:38 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 52 min |
| Jun 23, 9:49 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 41 min |
| Jun 23, 11:01 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 44 min |
| Jun 24, 1:59 AM CDT | Flash Flood Warning | LSX | Calhoun, Clinton, Jersey, Madison, Marion, Saint Clair and 1 more | 4 hr |
| Jun 24, 5:20 AM CDT | Flash Flood Warning | LSX | Calhoun, Clinton, Jersey, Madison, Marion, Saint Clair and 1 more | 4 hr |
| Jun 24, 9:00 AM CDT | Flash Flood Warning | LSX | Clinton, Marion, Saint Clair, Washington | 4 hr |
| Jun 24, 2:08 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 52 min |
| Jun 24, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin | 47 min |
| Jun 24, 3:23 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 52 min |
| Jun 24, 3:36 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 39 min |
| Jun 24, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 47 min |
| Jun 24, 3:52 PM CDT | Tornado Warning | LSX | Clinton | 23 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; radar from the NEXRAD Level II archive.