Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 41, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 7, 2000, 7:49 AM CDT for Macoupin County, Madison County, Illinois. 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 counties it named.
The facts
- Issued
- Apr 7, 2000, 7:49 AM CDT (12:49 UTC)
- Expired
- Apr 7, 2000, 8:35 AM CDT
- In force
- 46 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Macoupin County, IL, Madison County, IL
The radar
The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 12:52 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, 0.8 hours before the alert went out and 167 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
- 935 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
278 WUUS53 KLSX 071249 SVRSTL ILC117-119-071335- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 749 AM CDT FRI APR 7 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MACOUPIN COUNTY IN SOUTHWESTERN ILLINOIS NORTHERN MADISON COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS * UNTIL 835 AM CDT * AT 745 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF BUNKER HILL... MOVING EAST AT 30 MPH. * LOCATIONS THAT WILL BE AFFECTED... PRAIRIETOWN STAUNTON WILLIAMSON WHITE CITY DIME SIZE HAIL AT BRIGHTON AT 742 AM CDT THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING HAIL. LARGE HAIL CAN CAUSE EXTENSIVE PROPERTY DAMAGE AN SERIOUS INJURY TO PEOPLE CAUGHT OUTDOORS. MOVE INSIDE A STURDY BUILDING IMMEDIATELY. WDB &
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 12:07 AM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 53 min |
| Apr 7, 7:01 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 34 min |
| Apr 7, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 50 min |
| Apr 7, 8:32 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 48 min |
| Apr 7, 2:20 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 55 min |
| Apr 7, 2:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 62 min |
| Apr 7, 2:50 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 55 min |
| Apr 7, 2:51 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 54 min |
| Apr 7, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 50 min |
| Apr 7, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Saint Clair | 47 min |
| Apr 7, 3:38 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 37 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; radar from the NEXRAD Level II archive.