Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 321, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 5, 2000, 5:46 PM CDT for Macoupin County, Montgomery County, Illinois. It was in force for 29 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
- Jul 5, 2000, 5:46 PM CDT (22:46 UTC)
- Expired
- Jul 5, 2000, 6:15 PM CDT
- In force
- 29 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Macoupin County, IL, Montgomery County, IL
The radar
The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 22:50 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 |
|---|---|---|---|
| Jul 5, 5:50 PM CDT | Thunderstorm Wind 52 E | Hillsboro, IL | The local fire Department reported trees down. |
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, 10.8 hours before the alert went out and 139 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
- 153 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 69 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 052247 SVRSTL ILC117-135-052315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 546 PM CDT WED JUL 5 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN MACOUPIN COUNTY IN CENTRAL ILLINOIS SOUTHERN MONTGOMERY COUNTY IN CENTRAL ILLINOIS * UNTIL 615 PM CDT * AT 546 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER HILLSBORO...MOVING SOUTHEAST AT 50 MPH. * LOCATIONS IN THE PATH... BUNKER HILL COFFEEN WITT AT 540 PM CDT LAW ENFORCEMENT REPORTED POWER LINES DOWN IN MACOUPIN COUNTY SOUTH OF ATWATER AND WEST OF CHESTERFI=ELD. THIS STORM HAS A HISTORY OF DAMAGING WINDS. TAKE SHELTER IN A STURDY BUILDING IMMEDIATELY. & LAT...LON 3939 8989 3900 9001 3906 8930 3923 8925 EL/JPK/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 3:25 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 35 min |
| Jul 5, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 40 min |
| Jul 5, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 33 min |
| Jul 5, 5:18 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 42 min |
| Jul 5, 6:01 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 29 min |
| Jul 5, 6:34 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 26 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.