Alert archive / Missouri / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 187
The Storm Prediction Center issued this severe thunderstorm watch at Apr 30, 2002, 9:30 AM CDT for 18 counties in Arkansas; 24 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2002, 9:30 AM CDT (14:30 UTC)
- Expired
- Apr 30, 2002, 3:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 42 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Marion County, AR, Poinsett County, AR, Randolph County, AR, Sharp County, AR, Stone County, AR, Barry County, MO, Butler County, MO, Carter 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, Laclede County, MO, Lawrence County, MO, Oregon County, MO, Ozark County, MO, Polk County, MO, Ripley County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 80 km from the middle of the area, began a volume at 14:33 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
35 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 9:30 AM CDT | Severe Thunderstorm Warning | SGF | Christian, Greene | 60 min |
| Apr 30, 9:38 AM CDT | Tornado Warning | SGF | Douglas, Ozark | 52 min |
| Apr 30, 9:42 AM CDT | Severe Thunderstorm Warning | MEG | Crittenden, St. Francis | 33 min |
| Apr 30, 9:44 AM CDT | Severe Thunderstorm Warning | LZK | Stone | 16 min |
| Apr 30, 9:44 AM CDT | Severe Thunderstorm Warning | SGF | Taney | 61 min |
| Apr 30, 9:52 AM CDT | Severe Thunderstorm Warning | SGF | Dallas, Webster | 53 min |
| Apr 30, 9:55 AM CDT | Severe Thunderstorm Warning | SGF | Howell | 65 min |
| Apr 30, 9:58 AM CDT | Tornado Warning | SGF | Christian | 47 min |
| Apr 30, 10:33 AM CDT | Severe Thunderstorm Warning | SGF | Oregon | 57 min |
| Apr 30, 10:35 AM CDT | Severe Thunderstorm Warning | SGF | Ozark | 55 min |
| Apr 30, 10:55 AM CDT | Severe Thunderstorm Warning | LZK | Fulton | 35 min |
| Apr 30, 10:57 AM CDT | Severe Thunderstorm Warning | SGF | Howell | 63 min |
| Apr 30, 10:58 AM CDT | Severe Thunderstorm Warning | LZK | Fulton | 32 min |
| Apr 30, 10:59 AM CDT | Severe Thunderstorm Warning | LZK | Sharp | 31 min |
| Apr 30, 11:03 AM CDT | Severe Thunderstorm Warning | LZK | Baxter | 27 min |
| Apr 30, 11:16 AM CDT | Severe Thunderstorm Warning | MEG | Randolph | 29 min |
| Apr 30, 11:20 AM CDT | Severe Thunderstorm Warning | TSA | Carroll, Madison | 40 min |
| Apr 30, 11:26 AM CDT | Severe Thunderstorm Warning | LZK | Fulton, Izard | 34 min |
| Apr 30, 11:28 AM CDT | Severe Thunderstorm Warning | LZK | Sharp | 32 min |
| Apr 30, 11:41 AM CDT | Severe Thunderstorm Warning | MEG | Lawrence, Randolph | 34 min |
| Apr 30, 11:47 AM CDT | Severe Thunderstorm Warning | LZK | Boone | 43 min |
| Apr 30, 11:59 AM CDT | Severe Thunderstorm Warning | MEG | Craighead | 31 min |
| Apr 30, 12:02 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 13 min |
| Apr 30, 12:10 PM CDT | Severe Thunderstorm Warning | MEG | Lawrence | 35 min |
| Apr 30, 12:13 PM CDT | Severe Thunderstorm Warning | MEG | Greene | 32 min |
| Apr 30, 12:25 PM CDT | Severe Thunderstorm Warning | LZK | Jackson | 20 min |
| Apr 30, 12:25 PM CDT | Severe Thunderstorm Warning | MEG | Craighead, Poinsett | 35 min |
| Apr 30, 12:54 PM CDT | Severe Thunderstorm Warning | MEG | Mississippi, Poinsett | 36 min |
| Apr 30, 1:04 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Stone | 26 min |
| Apr 30, 1:08 PM CDT | Severe Thunderstorm Warning | MEG | Cross | 37 min |
| Apr 30, 1:09 PM CDT | Severe Thunderstorm Warning | SGF | Cedar, St. Clair | 21 min |
| Apr 30, 1:34 PM CDT | Severe Thunderstorm Warning | SGF | Hickory | 41 min |
| Apr 30, 1:45 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden | 30 min |
| Apr 30, 1:55 PM CDT | Severe Thunderstorm Warning | SGF | Dallas, Polk | 35 min |
| Apr 30, 2:22 PM CDT | Severe Thunderstorm Warning | SGF | Laclede | 38 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 2.5 hours before the alert went out and 114 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
- 40 J/kg
- Mixed-layer CIN
- -440 J/kg
- Mixed-layer LCL
- 1432 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 241 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 10:00 AM CDT | Severe Thunderstorm Watch | SPC | Mississippi | 5 hr |
| Apr 30, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Mississippi | 6 hr |
| Apr 30, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dent, Douglas and 18 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2002Severe Thunderstorm Watches in Arkansas, 2002Every severe thunderstorm watch in 2002
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.