Alert archive / Missouri / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 820
The Storm Prediction Center issued this severe thunderstorm watch at Jul 31, 2003, 4:45 PM CDT for 4 counties in Kansas; 25 counties in Missouri; Ottawa County, Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 31, 2003, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 31, 2003, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 30 counties
Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Linn County, KS, Barton County, MO, Bates County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Newton County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Stone County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Ottawa County, OK
The radar
The Springfield radar (KSGF), 54 km from the middle of the area, began a volume at 21:49 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
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 5:10 PM CDT | Severe Thunderstorm Warning | SGF | Camden | 65 min |
| Jul 31, 5:15 PM CDT | Severe Thunderstorm Warning | SGF | Greene | 30 min |
| Jul 31, 5:17 PM CDT | Severe Thunderstorm Warning | SGF | Dallas, Webster | 58 min |
| Jul 31, 5:28 PM CDT | Severe Thunderstorm Warning | SGF | Stone | 47 min |
| Jul 31, 5:33 PM CDT | Severe Thunderstorm Warning | SGF | Pulaski | 57 min |
| Jul 31, 6:13 PM CDT | Severe Thunderstorm Warning | SGF | Webster | 62 min |
| Jul 31, 6:15 PM CDT | Severe Thunderstorm Warning | SGF | Stone | 30 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 12:00Z, 9.8 hours before the alert went out and 85 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
- 57 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1543 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 2:04 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Coffey, Crawford, Franklin and 6 more | 2 hr |
| Jul 31, 2:16 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Decatur, Ellis, Ellsworth, Graham and 12 more | 89 min |
| Jul 31, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Cloud, Decatur, Graham, Jewell, Lincoln and 13 more | 5 hr |
| Jul 31, 4:36 PM CDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Ellsworth, Finney, Gove and 16 more | 114 min |
| Jul 31, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barton, Butler, Chase, Chautauqua and 45 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2003Severe Thunderstorm Watches in Kansas, 2003Severe Thunderstorm Watches in Oklahoma, 2003Every severe thunderstorm watch in 2003
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.