Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 142, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 12, 2000, 5:42 PM CDT for Montgomery County, Illinois. It was in force for 58 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 12, 2000, 5:42 PM CDT (22:42 UTC)
- Expired
- May 12, 2000, 6:40 PM CDT
- In force
- 58 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Montgomery County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 12, 5:44 PM CDT | Hail 0.75 | Litchfield, IL | |
| May 12, 6:00 PM CDT | Hail 1.75 | Litchfield, IL | |
| May 12, 6:01 PM CDT | Hail 1 | Hillsboro, IL | The Sheriff Department reported 1 inch hail. |
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 |
|---|---|---|---|
| May 12, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.7 hours before the alert went out and 127 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
- 2035 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 1023 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLSX 122244 SVRSTL ILC135-122340- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 542 PM CDT FRI MAY 12 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MONTGOMERY COUNTY IN CENTRAL ILLINOIS * UNTIL 640 PM CDT * AT 533 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR GILLESPIE..MOVING EAST NORTHEAST AT 30 MPH. * LOCATIONS THAT WILL BE AFFECTED... LITCHFIELD HILLSBORO WALSHVILLE LAKE YEAGER COFFEN LAKE THIS STORM HAS A HISTORY OF DAMAGING HAIL. STAY INSIDE AND AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. RP/GKS/ST
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 3:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 49 min |
| May 12, 4:09 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 51 min |
| May 12, 4:30 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 50 min |
| May 12, 4:42 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 48 min |
| May 12, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin | 48 min |
| May 12, 6:01 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Madison | 64 min |
| May 12, 6:05 PM CDT | Tornado Warning | LSX | Bond, Madison | 50 min |
| May 12, 6:49 PM CDT | Tornado Warning | LSX | Fayette | 51 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.