Alert archive / Arkansas / Mesoscale Discussions in 2012
Mesoscale Discussion 2214
The Storm Prediction Center issued this mesoscale discussion at Dec 25, 2012, 2:14 PM CST for 16 counties in Arkansas; 10 counties in Missouri. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 25, 2012, 2:14 PM CST (20:14 UTC)
- Expired
- Dec 25, 2012, 6:15 PM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Craighead County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Jackson County, AR, Lawrence County, AR, Marion County, AR, Poinsett County, AR, Randolph County, AR, Sharp County, AR, Woodruff County, AR, Butler County, MO, Carter County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Ripley County, MO, Shannon County, MO, Taney County, MO, Wayne County, MO
The radar
The Memphis radar (KNQA), 167 km from the middle of the area, began a volume at 20:15 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, 8.2 hours before the alert went out and 230 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1395 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Dec 25, 9:02 AM CST | Severe Thunderstorm Watch | SPC | Ashley, Chicot, Union | 7 hr |
| Dec 25, 12:11 PM CST | Mesoscale Discussion | SPC | Cleburne, Conway, Crawford, Faulkner, Franklin, Garland and 20 more | 5 hr |
| Dec 25, 12:23 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot | 67 min |
| Dec 25, 1:00 PM CST | Mesoscale Discussion | SPC | Columbia, Hempstead, Lafayette, Little River, Miller, Nevada | 5 hr |
| Dec 25, 3:22 PM CST | Mesoscale Discussion | SPC | Chicot | 53 min |
Nearby
Mesoscale Discussions in Arkansas, 2012Mesoscale Discussions in Missouri, 2012Every mesoscale discussion in 2012
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.