Alert archive / Arkansas / Mesoscale Discussions in 2015
Mesoscale Discussion 114
The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2015, 1:34 PM CST for 5 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 4, 2015, 1:34 PM CST (19:34 UTC)
- Expired
- Mar 4, 2015, 5:30 PM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 57 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Johnson County, AR, Lawrence County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Alexander County, IL, Hardin County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Union County, IL, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Union County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Dunklin County, MO, Howell County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Shannon County, MO, Stoddard County, MO, Wayne County, MO, Lake County, TN
The radar
The Springfield radar (KSGF), 188 km from the middle of the area, began a volume at 19:36 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
Nashville Metro, TN (KBNA), launched 12:00Z, 7.6 hours before the alert went out and 440 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
- 580 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 359 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 |
|---|---|---|---|---|
| Mar 4, 6:40 AM CST | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Crawford and 11 more | 5 hr |
| Mar 4, 2:12 PM CST | Mesoscale Discussion | SPC | Crawford, Franklin, Logan, Scott, Sebastian | 4 hr |
| Mar 4, 4:53 PM CST | Mesoscale Discussion | SPC | Anderson, Bath, Boone, Bourbon, Boyd, Bracken and 38 more | 6 hr |
Nearby
Mesoscale Discussions in Arkansas, 2015Mesoscale Discussions in Missouri, 2015Mesoscale Discussions in Kentucky, 2015Every mesoscale discussion in 2015
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.