Alert archive / Mississippi / Mesoscale Discussions in 2014
Mesoscale Discussion 1808
The Storm Prediction Center issued this mesoscale discussion at Oct 2, 2014, 11:50 PM CDT for 5 states. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Oct 2, 2014, 11:50 PM CDT (04:50 UTC)
- Expired
- Oct 3, 2014, 1:45 AM CDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 116 counties
Colbert County, AL, Franklin County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Caldwell County, KY, Calloway County, KY, Christian County, KY, Fulton County, KY, Graves County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, Todd County, KY, Trigg County, KY, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clay County, MS, Copiah County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jefferson County, MS, Lafayette County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Sunflower County, MS, Tallahatchie County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS, Bedford County, TN, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Stewart County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN, Wilson County, TN
The radar
The Columbus AFB radar (KGWX), 72 km from the middle of the area, began a volume at 04:53 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 (KBYH), launched 00:00Z, 4.8 hours before the alert went out and 111 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
- 2607 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 13.2
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 |
|---|---|---|---|---|
| Oct 3, 2:11 AM CDT | Mesoscale Discussion | SPC | Blount, Cullman, Jackson, Limestone, Madison, Marshall and 3 more | 2 hr |
| Oct 3, 10:17 AM CDT | Mesoscale Discussion | SPC | Geneva, Henry, Houston | 88 min |
| Oct 2, 7:35 PM CDT | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Crittenden, Fulton and 8 more | 115 min |
| Oct 2, 7:33 PM CDT | Mesoscale Discussion | SPC | Allen, Beauregard, Calcasieu, Caldwell, De Soto, Evangeline and 9 more | 57 min |
| Oct 2, 8:04 PM CDT | Severe Thunderstorm Watch | SPC | Beauregard, Caldwell, De Soto, Grant, LaSalle, Natchitoches and 5 more | 7 hr |
| Oct 2, 9:26 PM CDT | Mesoscale Discussion | SPC | East Carroll, Madison, Morehouse, West Carroll | 2 hr |
| Oct 2, 10:11 PM CDT | Tornado Watch | SPC | Catahoula, Concordia, Franklin, Madison, Richland, Tensas | 5 hr |
| Oct 2, 11:05 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 23 more | 55 min |
| Oct 2, 11:36 PM CDT | Severe Thunderstorm Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Calcasieu and 18 more | 5 hr |
Nearby
Mesoscale Discussions in Mississippi, 2014Mesoscale Discussions in Tennessee, 2014Mesoscale Discussions in Kentucky, 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.