Alert archive / Missouri / Tornado Watches in 2005
Tornado Watch 880
The Storm Prediction Center issued this tornado watch at Nov 27, 2005, 8:28 PM CST for 7 counties in Illinois; 23 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 27, 2005, 8:28 PM CST (02:28 UTC)
- Expired
- Nov 28, 2005, 1:51 AM CST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 30 counties
Calhoun County, IL, Greene County, IL, Jersey County, IL, Madison County, IL, Monroe County, IL, Randolph County, IL, Saint Clair County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Madison County, MO, Moniteau County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 53 km from the middle of the area, began a volume at 02:28 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
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 8:28 PM CST | Tornado Warning | LSX | Iron, Reynolds | 32 min |
| Nov 27, 8:57 PM CST | Tornado Warning | LSX | Iron, Reynolds, Saint Francois, Washington | 48 min |
| Nov 27, 9:20 PM CST | Tornado Warning | LSX | Reynolds | 25 min |
| Nov 27, 9:45 PM CST | Severe Thunderstorm Warning | LSX | Jefferson | 45 min |
| Nov 27, 9:47 PM CST | Tornado Warning | LSX | Iron, Reynolds, Saint Francois, Washington | 28 min |
| Nov 27, 10:14 PM CST | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 25 min |
| Nov 27, 10:16 PM CST | Severe Thunderstorm Warning | LSX | Jefferson, Saint Francois, Washington | 44 min |
| Nov 27, 10:52 PM CST | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 38 min |
| Nov 27, 11:10 PM CST | Tornado Warning | LSX | Madison | 32 min |
| Nov 27, 11:30 PM CST | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 45 min |
| Nov 28, 12:15 AM CST | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 45 min |
| Nov 28, 12:33 AM CST | Severe Thunderstorm Warning | LSX | Randolph | 27 min |
| Nov 28, 12:57 AM CST | Severe Thunderstorm Warning | LSX | Clinton, Randolph, Saint Clair, Washington | 48 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.5 hours before the alert went out and 288 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
- 70 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 8:09 PM CST | Mesoscale Discussion | SPC | Adams, Calhoun, Greene, Jersey, Madison, Monroe and 2 more | 2 hr |
| Nov 27, 11:21 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clinton, Fayette, Greene and 16 more | 84 min |
| Nov 27, 11:26 PM CST | Tornado Watch | SPC | Alexander, Bond, Christian, Clark, Clay, Clinton and 37 more | 7 hr |
| Nov 28, 12:43 AM CST | Mesoscale Discussion | SPC | Alexander | 62 min |
| Nov 28, 3:28 AM CST | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Coles, Crawford, Cumberland and 29 more | 62 min |
| Nov 27, 6:19 PM CST | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Mississippi and 7 more | 8 hr |
Nearby
Tornado Watches in Missouri, 2005Tornado Watches in Illinois, 2005Every tornado watch in 2005
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.