Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 320, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 5, 2000, 5:18 PM CDT for Macoupin County, Montgomery County, Illinois. It was in force for 42 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, 5:18 PM CDT (22:18 UTC)
- Expired
- Jul 5, 2000, 6:00 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Macoupin County, IL, Montgomery County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 5, 5:50 PM CDT | Thunderstorm Wind 52 E | Raymond, IL | Storm spotters reported power lines down in Raymond. |
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, 10.3 hours before the alert went out and 120 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 052220 SVRSTL ILC117-135-052300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 518 PM CDT WED JUL 5 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN MACOUPIN COUNTY IN CENTRAL ILLINOIS NORTHERN MONTGOMERY COUNTY IN CENTRAL ILLINOIS * UNTIL 600 PM CDT * AT 518 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES NORTHEAST OF PALMYRA...MOVING EAST AT 40 MPH. * LOCATIONS IN THE PATH... GIRARD VIRDEN FARMERSVILLE WHITE OAK NOKOMIS AT 514 PM CDT POWER LINES WERE REPORTED DOWN IN THE TOWN OF WAVERLY)...IN MORGAN COUNTY ILLINOIS. THIS STORM HAS A HISTORY OF DAMAGING WINDS. TAKE SHELTER IN A STURDY BUILDING IMMEDIATELY. & LAT...LON 3961 8999 3944 9007 3921 8918 3941 8913 RP/EML
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, 5:46 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 29 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.