Alert archive / Arkansas / Mesoscale Discussions in 2014
Mesoscale Discussion 259
The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2014, 12:05 PM CDT for 33 counties in Arkansas; 25 counties in Missouri. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2014, 12:05 PM CDT (17:05 UTC)
- Expired
- Apr 3, 2014, 1:00 PM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 58 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Clark County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Hot Spring County, AR, Izard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Barry County, MO, Camden 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, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 105 km from the middle of the area, began a volume at 17:06 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 5.1 hours before the alert went out and 100 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
- 1727 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 417 m²/s²
- 0-3 km storm-relative helicity
- 423 m²/s²
- Significant tornado parameter
- 3.5
- Supercell composite
- 15.3
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 |
|---|---|---|---|---|
| Apr 3, 9:18 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 28 more | 57 min |
| Apr 3, 9:33 AM CDT | Tornado Watch | SPC | Baxter, Benton, Boone, Calhoun, Carroll, Clark and 38 more | 7 hr |
| Apr 3, 12:33 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 87 min |
| Apr 3, 1:15 PM CDT | Tornado Watch | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 8 hr |
| Apr 3, 1:46 PM CDT | Mesoscale Discussion | SPC | Hempstead, Howard, Little River, Miller, Montgomery, Pike and 4 more | 89 min |
| Apr 3, 1:50 PM CDT | Tornado Watch | SPC | Hempstead, Howard, Lafayette, Little River, Miller, Nevada and 1 more | 7 hr |
| Apr 3, 3:48 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Madison, Washington | 57 min |
| Apr 3, 4:34 PM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Calhoun, Clark, Cleburne, Conway and 35 more | 26 min |
| Apr 3, 4:58 PM CDT | Tornado Watch | SPC | Baxter, Boone, Calhoun, Clark, Cleburne, Conway and 31 more | 7 hr |
| Apr 2, 9:36 PM CDT | Mesoscale Discussion | SPC | Barton, Bates, Benton, Camden, Cass, Cedar and 18 more | 54 min |
| Apr 2, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Benton, Camden, Carroll, Cass and 21 more | 7 hr |
| Apr 3, 12:00 AM CDT | Mesoscale Discussion | SPC | Barton, Bates, Benton, Camden, Carroll, Cass and 22 more | 90 min |
| Apr 3, 1:05 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Clark and 19 more | 55 min |
| Apr 3, 2:49 AM CDT | Mesoscale Discussion | SPC | Adair, Audrain, Barton, Bates, Benton, Boone and 65 more | 116 min |
| Apr 3, 12:28 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Iron, Madison, Mississippi and 7 more | 62 min |
| Apr 3, 12:46 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Crawford, Iron and 12 more | 4 hr |
| Apr 3, 3:17 PM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Carroll, Chariton, Cooper, Howard and 10 more | 58 min |
Nearby
Mesoscale Discussions in Arkansas, 2014Mesoscale Discussions in Missouri, 2014Every mesoscale discussion in 2014
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.