Alert archive / Illinois / Tornado Warnings in 2000
Tornado Warning 28, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 20, 2000, 2:32 PM CDT for Montgomery County, Illinois. It was in force for 28 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 20, 2000, 2:32 PM CDT (19:32 UTC)
- Expired
- Jun 20, 2000, 3:00 PM CDT
- In force
- 28 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Montgomery County, IL
The radar
The St Louis radar (KLSX), 111 km from the middle of the area, began a volume at 19:33 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 20, 2:40 PM CDT | Tornado F0 | Donnellson, IL | A small tornado left an intermittent damage path across southeast Montgomery County. One grain bin was destroyed, otherwise damage was limited to downed trees and some power lines. |
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, 7.5 hours before the alert went out and 140 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
- 135 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 234 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
358 WFUS53 KLSX 201932 TORSTL ILC135-202000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 232 PM CDT TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN MONTGOMERY COUNTY IN CENTRAL ILLINOIS * UNTIL 300 PM CDT * AT 232 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO OVER WALSHVILLE...MOVING EAST AT 30 MPH. * LOCATIONS IN THE PATH... TAYLOR SPRINGS DONNELLSON HILLSBORO COFFEEN CHAPMAN FILLMORE IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A BASEMENT OFFERS THE BEST PROTECTION. IF A BASEMENT IS NOT AVAILABLE...MOVE TO THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY AWAY FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE ABANDONED IN FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO OUTRUN A TORNADO IN A VEHICLE. LAT...LON 3915 8971 3897 8966 3903 8926 3925 8925
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 1:16 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 44 min |
| Jun 20, 1:47 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 43 min |
| Jun 20, 2:55 PM CDT | Tornado Warning | LSX | Fayette | 50 min |
| Jun 20, 3:45 PM CDT | Tornado Warning | LSX | Fayette | 45 min |
| Jun 20, 5:58 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 62 min |
| Jun 20, 6:13 PM CDT | Tornado Warning | LSX | Pike | 47 min |
Nearby
Tornado Warnings in Illinois, 2000Every tornado warning in 2000Tornadoes 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.