Alert archive / Illinois / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 506
The Storm Prediction Center issued this severe thunderstorm watch at Jun 25, 2000, 10:45 PM CDT for 25 counties in Illinois; 23 counties in Missouri. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2000, 10:45 PM CDT (03:45 UTC)
- Expired
- Jun 26, 2000, 3:00 AM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Brown County, IL, Calhoun County, IL, Cass County, IL, Christian County, IL, DeWitt County, IL, Fulton County, IL, Greene County, IL, Jersey County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Pike County, IL, Saint Clair County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Tazewell County, IL, City of Saint Louis, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Maries County, MO, Montgomery County, MO, Osage County, MO, Phelps County, MO, Pike County, MO, Pulaski County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Shannon County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Wright County, MO
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 10:50 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 40 min |
| Jun 25, 11:02 PM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 58 min |
| Jun 25, 11:13 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 47 min |
| Jun 25, 11:14 PM CDT | Tornado Warning | LSX | Pike | 46 min |
| Jun 25, 11:17 PM CDT | Tornado Warning | LSX | Pike | 43 min |
| Jun 25, 11:24 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 66 min |
| Jun 25, 11:26 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 49 min |
| Jun 25, 11:32 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade, Warren | 43 min |
| Jun 25, 11:32 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 43 min |
| Jun 25, 11:59 PM CDT | Tornado Warning | LSX | Lincoln, Pike | 46 min |
| Jun 26, 12:01 AM CDT | Severe Thunderstorm Warning | ILX | Scott | 59 min |
| Jun 26, 12:03 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 42 min |
| Jun 26, 12:14 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 61 min |
| Jun 26, 12:14 AM CDT | Severe Thunderstorm Warning | LSX | Gasconade | 61 min |
| Jun 26, 12:28 AM CDT | Severe Thunderstorm Warning | LSX | Greene | 62 min |
| Jun 26, 12:55 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 65 min |
| Jun 26, 12:55 AM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 65 min |
| Jun 26, 12:58 AM CDT | Severe Thunderstorm Warning | ILX | Morgan | 62 min |
| Jun 26, 1:34 AM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 41 min |
| Jun 26, 1:51 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 39 min |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.8 hours before the alert went out and 282 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
- 752 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1190 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jun 25, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Hancock, Henderson, Mercer, Warren | 5 hr |
| Jun 25, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Benton, Camden, Cedar, Christian and 18 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Illinois, 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.