Alert archive / Missouri / Tornado Watches in 1999
Tornado Watch 355
The Storm Prediction Center issued this tornado watch at Jun 1, 1999, 5:30 PM CDT for 22 counties in Illinois; 5 counties in Kentucky; 24 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 1999, 5:30 PM CDT (22:30 UTC)
- Expired
- Jun 1, 1999, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 51 counties
Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Ballard County, KY, Carlisle County, KY, Fulton County, KY, Hickman County, KY, McCracken County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Washington County, MO, Wayne County, MO
The radar
The St Louis radar (KLSX), 152 km from the middle of the area, began a volume at 22:32 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 1, 5:48 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Jun 1, 6:31 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger, Wayne | 44 min |
| Jun 1, 6:34 PM CDT | Tornado Warning | LSX | Crawford | 51 min |
| Jun 1, 6:44 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 51 min |
| Jun 1, 6:50 PM CDT | Tornado Warning | LSX | Franklin | 50 min |
| Jun 1, 7:04 PM CDT | Tornado Warning | SGF | Dent, Phelps | 36 min |
| Jun 1, 7:16 PM CDT | Severe Thunderstorm Warning | PAH | Butler, Stoddard | 44 min |
| Jun 1, 7:25 PM CDT | Tornado Warning | LSX | Jefferson | 50 min |
| Jun 1, 7:27 PM CDT | Tornado Warning | LSX | Washington | 48 min |
| Jun 1, 7:36 PM CDT | Tornado Warning | LSX | Crawford | 49 min |
| Jun 1, 7:44 PM CDT | Tornado Warning | SGF | Dent | 51 min |
| Jun 1, 8:34 PM CDT | Flash Flood Warning | SGF | Dent | 2 hr |
| Jun 1, 9:19 PM CDT | Severe Thunderstorm Warning | SGF | Shannon | 51 min |
| Jun 1, 9:47 PM CDT | Flash Flood Warning | SGF | Shannon | 3 hr |
| Jun 1, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 62 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.5 hours before the alert went out and 297 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
- 20 J/kg
- Mixed-layer CIN
- -321 J/kg
- Mixed-layer LCL
- 1581 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 1, 1:30 PM CDT | Tornado Watch | SPC | Adams, Brown, Hancock, Henderson, McDonough, Mercer and 3 more | 6 hr |
| Jun 1, 4:00 PM CDT | Tornado Watch | SPC | Bond, Brown, Bureau, Calhoun, Cass, Champaign and 52 more | 6 hr |
| Jun 1, 3:45 PM CDT | Tornado Watch | SPC | Barry, Barton, Benton, Camden, Cedar, Christian and 29 more | 6 hr |
Nearby
Tornado Watches in Missouri, 1999Tornado Watches in Illinois, 1999Tornado Watches in Kentucky, 1999Every tornado watch in 1999
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.