Alert archive / Illinois / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 45, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 10, 2001, 12:54 PM CDT for Clinton County, Washington County, Illinois. It was in force for 51 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
- Apr 10, 2001, 12:54 PM CDT (17:54 UTC)
- Expired
- Apr 10, 2001, 1:45 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Clinton County, IL, Washington County, IL
The radar
The St Louis radar (KLSX), 109 km from the middle of the area, began a volume at 17:55 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, 5.9 hours before the alert went out and 194 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
- 716 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -134 m²/s²
- 0-3 km storm-relative helicity
- -156 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 101755 SVRSTL ILC027-189-101845- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1254 PM CDT TUE APR 10 2001 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS NORTHEASTERN WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS * UNTIL 145 PM CDT * AT 1254 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTH OF BECKEMEYER...MOVING EAST AT 35 MPH. * LOCATIONS IN THE PATH... SHATTUC 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 THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL THAT CAN CAUSE SERIOUS INJURY AND EXTENSIVE PROPERTY DAMAGE. TAKE SHELTER INSIDE OF A STURDY BUILDING NOW LAT...LON 3858 8965 3843 8959 3843 8916 3866 8916 $$ RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 9:59 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 46 min |
| Apr 9, 10:06 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 39 min |
| Apr 9, 10:06 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 39 min |
| Apr 9, 10:45 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 45 min |
| Apr 9, 10:46 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 44 min |
| Apr 10, 6:11 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 34 min |
| Apr 10, 11:32 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Madison | 43 min |
| Apr 10, 12:07 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 38 min |
| Apr 10, 12:44 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 46 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2001Every severe thunderstorm warning in 2001
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.