Alert archive / Arkansas / Mesoscale Discussions in 2008
Mesoscale Discussion 875
The Storm Prediction Center issued this mesoscale discussion at May 10, 2008, 9:42 PM CDT for 28 counties in Arkansas; 5 counties in Missouri. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2008, 9:42 PM CDT (02:42 UTC)
- Expired
- May 10, 2008, 11:15 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 33 counties
Arkansas County, AR, Baxter County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Faulkner County, AR, Fulton County, AR, Grant County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lincoln County, AR, Lonoke County, AR, Marion County, AR, Perry County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Texas County, MO
The radar
The Little Rock radar (KLZK), 68 km from the middle of the area, began a volume at 02:42 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
Little Rock, AR (KLZK), launched 00:00Z, 2.7 hours before the alert went out and 148 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
- 2977 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 589 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 426 m²/s²
- Significant tornado parameter
- 9.1
- Supercell composite
- 41.7
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 |
|---|---|---|---|---|
| May 10, 7:36 PM CDT | Mesoscale Discussion | SPC | Arkansas, Crittenden, Lee, Monroe, Phillips | 54 min |
| May 10, 9:21 PM CDT | Mesoscale Discussion | SPC | Craighead, Crittenden, Mississippi, Poinsett | 84 min |
| May 10, 7:14 PM CDT | Severe Thunderstorm Watch | SPC | Bollinger, Boone, Butler, Callaway, Cape Girardeau, Carter and 26 more | 5 hr |
| May 10, 8:50 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Franklin, Gasconade, Iron and 12 more | 85 min |
Nearby
Mesoscale Discussions in Arkansas, 2008Mesoscale Discussions in Missouri, 2008Every mesoscale discussion in 2008
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.