Alert archive / Tennessee / Mesoscale Discussions in 2015
Mesoscale Discussion 119
The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2015, 7:27 PM CST for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 4, 2015, 7:27 PM CST (01:27 UTC)
- Expired
- Mar 5, 2015, 1:30 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 54 counties
Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Jackson County, AR, Jefferson County, AR, Lee County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Dunklin County, MO, New Madrid County, MO, Pemiscot County, MO, DeSoto County, MS, Benton County, TN, Carroll County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Haywood County, TN, Henry County, TN, Houston County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Montgomery County, TN, Obion County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 35 km from the middle of the area, began a volume at 01:27 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 00:00Z, 1.5 hours before the alert went out and 307 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
- 4 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 432 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 245 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, 7:53 PM CST | Mesoscale Discussion | SPC | Calhoun, Clark, Cleveland, Dallas, Garland, Grant and 11 more | 6 hr |
| Mar 4, 11:54 PM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Chicot, Desha, Drew, Union | 6 hr |
| Mar 4, 10:00 PM CST | Mesoscale Discussion | SPC | Adair, Anderson, Barren, Bath, Bourbon, Boyd and 55 more | 6 hr |
| Mar 5, 4:03 AM CST | Mesoscale Discussion | SPC | Attala, Choctaw, Claiborne, Clay, Hinds, Holmes and 19 more | 5 hr |
Nearby
Mesoscale Discussions in Tennessee, 2015Mesoscale Discussions in Arkansas, 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.