Alert archive / Missouri / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 471
The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 2000, 6:45 PM CDT for 13 counties in Illinois; 4 counties in Kansas; 34 counties in Missouri. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2000, 6:45 PM CDT (23:45 UTC)
- Expired
- Jun 20, 2000, 11:00 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 51 counties
Bond County, IL, Clinton County, IL, Fayette County, IL, Jefferson County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Linn County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lincoln County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Saint Charles County, MO, Saint Louis County, MO, St. Clair County, MO, Vernon County, MO, Warren County, MO, Washington County, MO
The radar
The Springfield radar (KSGF), 132 km from the middle of the area, began a volume at 23:47 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.
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:19 PM CDT | Severe Thunderstorm Warning | SGF | St. Clair, Vernon | 41 min |
| Jun 20, 7:48 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 42 min |
| Jun 20, 8:14 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 46 min |
| Jun 20, 8:19 PM CDT | Flash Flood Warning | SGF | St. Clair, Vernon | 6 hr |
| Jun 20, 8:25 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade | 35 min |
| Jun 20, 8:33 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 42 min |
| Jun 20, 8:58 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 47 min |
| Jun 20, 9:14 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 61 min |
| Jun 20, 9:14 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 61 min |
| Jun 20, 9:30 PM CDT | Flash Flood Warning | SGF | Cherokee, Crawford | 5 hr |
| Jun 20, 9:35 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 25 min |
| Jun 20, 9:54 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 51 min |
| Jun 20, 10:15 PM CDT | Flash Flood Warning | SGF | Camden, Miller | 4 hr |
| Jun 20, 10:28 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 47 min |
| Jun 20, 10:43 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 47 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.8 hours before the alert went out and 183 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
- 460 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.0
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 20, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Christian, DeWitt and 23 more | 6 hr |
| Jun 19, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | Decatur, Graham, Jewell, Mitchell, Norton, Osborne and 8 more | 5 hr |
| Jun 20, 12:30 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Doniphan, Marshall, Nemaha, Republic and 1 more | 6 hr |
| Jun 20, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Atchison, Coffey, Doniphan, Douglas, Franklin and 12 more | 7 hr |
| Jun 20, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Butler, Chase, Coffey, Comanche, Cowley and 16 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2000Severe Thunderstorm Watches in Illinois, 2000Severe Thunderstorm Watches in Kansas, 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; radar from the NEXRAD Level II archive.