Alert archive / Arkansas / Mesoscale Discussions in 2007
Mesoscale Discussion 1333
The Storm Prediction Center issued this mesoscale discussion at Jun 30, 2007, 3:55 PM CDT for 4 states. It was in force for 65 min.
The area
The outline as issued.
The facts
- Issued
- Jun 30, 2007, 3:55 PM CDT (20:55 UTC)
- Expired
- Jun 30, 2007, 5:00 PM CDT
- In force
- 65 min
- Issued by
- the Storm Prediction Center
All 41 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Faulkner County, AR, Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Perry County, AR, Pope County, AR, Searcy County, AR, Sebastian County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Cherokee County, KS, Labette County, KS, Barry County, MO, Jasper County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Mayes County, OK, Muskogee County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK, Sequoyah County, OK, Wagoner County, OK
The radar
The Western Arkansas radar (KSRX), 93 km from the middle of the area, began a volume at 20:58 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.9 hours before the alert went out and 94 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
- 374 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 2:27 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 12 more | 3 hr |
| Jun 30, 10:46 AM CDT | Mesoscale Discussion | SPC | Anderson, Franklin, Johnson, Linn, Miami, Wyandotte | 119 min |
| Jun 30, 2:01 PM CDT | Mesoscale Discussion | SPC | Bourbon | 59 min |
| Jun 30, 2:21 PM CDT | Tornado Watch | SPC | Bourbon, Cherokee, Crawford | 6 hr |
Nearby
Mesoscale Discussions in Arkansas, 2007Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Missouri, 2007Every mesoscale discussion in 2007
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.