Alert archive / Illinois / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 735
The Storm Prediction Center issued this severe thunderstorm watch at Sep 11, 2000, 10:30 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 11, 2000, 10:30 PM CDT (03:30 UTC)
- Expired
- Sep 12, 2000, 3:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 55 counties
Bond County, IL, Calhoun County, IL, Champaign County, IL, Christian County, IL, Clinton County, IL, DeWitt County, IL, Douglas County, IL, Fayette County, IL, Ford County, IL, Greene County, IL, Grundy County, IL, Iroquois County, IL, Jersey County, IL, Kankakee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Saint Clair County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Will County, IL, Woodford County, IL, Benton County, IN, Elkhart County, IN, Jasper County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Newton County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Warren County, IN, White County, IN, Berrien County, MI, City of Saint Louis, MO, Franklin County, MO, Gasconade County, MO, Lincoln County, MO, Osage County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 10:32 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 58 min |
| Sep 11, 10:50 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Kankakee, Livingston | 55 min |
| Sep 11, 10:51 PM CDT | Severe Thunderstorm Warning | ILX | Logan | 54 min |
| Sep 11, 10:51 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 39 min |
| Sep 11, 10:53 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 52 min |
| Sep 11, 11:05 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 55 min |
| Sep 11, 11:14 PM CDT | Severe Thunderstorm Warning | IWX | Berrien | 36 min |
| Sep 11, 11:16 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 59 min |
| Sep 11, 11:44 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Kankakee, Livingston | 61 min |
| Sep 12, 12:01 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 59 min |
| Sep 12, 12:16 AM CDT | Severe Thunderstorm Warning | LOT | Benton, Jasper, Newton | 59 min |
| Sep 12, 12:30 AM CDT | Severe Thunderstorm Warning | IND | Fountain, Warren | 30 min |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.5 hours before the alert went out and 88 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
- 3019 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1421 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 5.6
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Henry, Jo Daviess, Lee and 6 more | 4 hr |
| Sep 11, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 12 more | 4 hr |
| Sep 11, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Barton, Camden, Cedar, Christian, Dade and 20 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Illinois, 2000Severe Thunderstorm Watches in Indiana, 2000Severe Thunderstorm Watches in Missouri, 2000Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive.