Alert archive / Arkansas / Severe Thunderstorm Watches in 2006
Severe Thunderstorm Watch 313
The Storm Prediction Center issued this severe thunderstorm watch at May 9, 2006, 6:22 AM CDT for 10 counties in Arkansas; 6 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 9, 2006, 6:22 AM CDT (11:22 UTC)
- Expired
- May 9, 2006, 12:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
Counties Baxter County, AR, Boone County, AR, Fulton County, AR, Independence County, AR, Izard County, AR, Marion County, AR, Newton County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Christian County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Taney County, MO
The radar
The Springfield radar (KSGF), 110 km from the middle of the area, began a volume at 11:23 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 |
|---|---|---|---|---|
| May 9, 8:02 AM CDT | Severe Thunderstorm Warning | LZK | Boone, Marion, Newton | 58 min |
| May 9, 8:37 AM CDT | Severe Thunderstorm Warning | LZK | Baxter | 53 min |
| May 9, 8:43 AM CDT | Severe Thunderstorm Warning | SGF | Ozark | 28 min |
| May 9, 8:45 AM CDT | Flash Flood Warning | SGF | Douglas | 6 hr |
| May 9, 9:06 AM CDT | Severe Thunderstorm Warning | LZK | Fulton, Izard | 54 min |
| May 9, 9:35 AM CDT | Severe Thunderstorm Warning | LZK | Sharp | 55 min |
| May 9, 10:12 AM CDT | Severe Thunderstorm Warning | LZK | Independence | 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, 11.4 hours before the alert went out and 122 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
- 424 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 852 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 4:24 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Madison, Washington | 4 hr |
| May 9, 10:00 AM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Greene, Jackson, Lawrence and 4 more | 2 hr |
| May 9, 10:05 AM CDT | Severe Thunderstorm Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 4 more | 5 hr |
| May 9, 10:46 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Clark, Cleburne, Cleveland, Conway, Dallas and 17 more | 4 hr |
| May 9, 4:46 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Madison, Washington | 89 min |
| May 9, 5:07 PM CDT | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 10 more | 6 hr |
| May 9, 6:30 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 6 more | 90 min |
| May 8, 7:47 PM CDT | Mesoscale Discussion | SPC | Atchison, Holt, Nodaway | 58 min |
| May 8, 10:59 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Gentry, Holt, Nodaway and 1 more | 91 min |
Nearby
Severe Thunderstorm Watches in Arkansas, 2006Severe Thunderstorm Watches in Missouri, 2006Every severe thunderstorm watch in 2006
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.