Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 415, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 22, 2000, 10:20 PM CDT for Montgomery County, Illinois. It was in force for 40 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
- Aug 22, 2000, 10:20 PM CDT (03:20 UTC)
- Expired
- Aug 22, 2000, 11:00 PM CDT
- In force
- 40 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Montgomery County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 22, 10:39 PM CDT | Hail 0.75 | Litchfield, IL | Storm spotters reported 3/4 inch hail northwest of Litchfield. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 22, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.3 hours before the alert went out and 117 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
- 3363 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 915 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KLSX 230321
SVRSTL
ILC135-230400-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1020 PM CDT TUE AUG 22 2000
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MONTGOMERY COUNTY IN CENTRAL ILLINOIS
* UNTIL 1100 PM CDT
* AT 1020 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 9 MILES SOUTHWEST OF FARMERSVILLE...MOVING EAST
AT 45 MPH.
* LOCATIONS IN THE PATH...
RAYMOND
HILLSBORO
WITT
LAKE LOU YEAGER
NOKOMIS
THIS STORM HAS A HISTORY OF DAMAGING WINDS. TAKE SHELTER IN A STURDY
BUILDING IMMEDIATELY.
THE PRIMARY THREAT POSED BY THIS STORM IS DAMAGING WINDS. MOVE
QUICKLY TO THE INTERIOR PORTION OF A STURDY SHELTER...AND STAY AWAY
FROM OUTSIDE WALLS AND WINDOWS.
LAT...LON 3957 8972 3922 8972 3911 8947 3919 8926
3936 8914 3936 8954 3954 8955
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 7:28 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 62 min |
| Aug 22, 8:22 PM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 53 min |
| Aug 22, 9:05 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 55 min |
| Aug 22, 9:38 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 52 min |
| Aug 22, 10:55 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 35 min |
| Aug 22, 11:02 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 43 min |
| Aug 22, 11:33 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 42 min |
| Aug 23, 12:13 AM CDT | Severe Thunderstorm Warning | LSX | Marion | 62 min |
| Aug 23, 6:12 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 48 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.