Alert archive / Mississippi / Tornado Watches in 2020
Tornado Watch 106
The Storm Prediction Center issued this tornado watch at Apr 12, 2020, 10:41 AM CDT for 5 counties in Arkansas; 9 parishes in Louisiana; 53 counties in Mississippi. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 12, 2020, 10:41 AM CDT (15:41 UTC)
- Expired
- Apr 12, 2020, 9:00 PM CDT
- In force
- 10 hr
- Issued by
- the Storm Prediction Center
- Particularly dangerous situation
- Yes
- Largest hail expected
- 2 in
- Strongest gust expected
- 70 kt
All 67 counties
Ashley County, AR, Bradley County, AR, Chicot County, AR, Desha County, AR, Drew County, AR, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Attala County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Coahoma County, MS, Copiah County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jasper County, MS, Jefferson County, MS, Kemper County, MS, Lafayette County, MS, Lauderdale County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Tallahatchie 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
The radar
The Jackson/Brandon,MS radar (KDGX), 112 km from the middle of the area, began a volume at 15:44 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 90%
- One or more EF2 to EF5 tornadoes
- 80%
- Ten or more severe wind reports
- 90%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
57 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 10:50 AM CDT | Severe Thunderstorm Warning | JAN | Lowndes, Noxubee | 29 min |
| Apr 12, 11:34 AM CDT | Severe Thunderstorm Warning | JAN | Ashley | 56 min |
| Apr 12, 11:38 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse, West Carroll | 67 min |
| Apr 12, 11:42 AM CDT | Tornado Warning | JAN | Morehouse, Richland, West Carroll | 51 min |
| Apr 12, 11:51 AM CDT | Severe Thunderstorm Warning | JAN | Franklin, Richland | 39 min |
| Apr 12, 12:16 PM CDT | Tornado Warning | JAN | East Carroll | 59 min |
| Apr 12, 12:21 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 54 min |
| Apr 12, 12:26 PM CDT | Severe Thunderstorm Warning | JAN | Ashley, Chicot | 37 min |
| Apr 12, 12:35 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Holmes, Leake, Madison, Yazoo | 40 min |
| Apr 12, 1:05 PM CDT | Tornado Warning | JAN | Humphreys, Yazoo | 55 min |
| Apr 12, 1:06 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Madison, Neshoba, Scott, Winston | 39 min |
| Apr 12, 1:40 PM CDT | Tornado Warning | JAN | Attala, Holmes | 65 min |
| Apr 12, 2:27 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Choctaw, Winston | 48 min |
| Apr 12, 2:28 PM CDT | Flash Flood Warning | MEG | Panola, Tate | 3 hr |
| Apr 12, 2:51 PM CDT | Tornado Warning | JAN | Choctaw, Noxubee, Oktibbeha, Winston | 54 min |
| Apr 12, 2:54 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Madison | 54 min |
| Apr 12, 2:58 PM CDT | Tornado Warning | JAN | Winston | 26 min |
| Apr 12, 3:04 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison, Rankin | 41 min |
| Apr 12, 3:07 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 23 min |
| Apr 12, 3:14 PM CDT | Tornado Warning | JAN | Noxubee | 45 min |
| Apr 12, 3:17 PM CDT | Severe Thunderstorm Warning | JAN | Clay, Lowndes, Oktibbeha | 43 min |
| Apr 12, 3:27 PM CDT | Severe Thunderstorm Warning | JAN | Holmes, Humphreys, Yazoo | 20 min |
| Apr 12, 3:28 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Monroe | 15 min |
| Apr 12, 3:29 PM CDT | Tornado Warning | JAN | Lowndes | 31 min |
| Apr 12, 3:45 PM CDT | Flash Flood Warning | JAN | Attala, Choctaw, Leake, Neshoba, Noxubee, Winston | 4 hr |
| Apr 12, 4:10 PM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 35 min |
| Apr 12, 4:11 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin | 50 min |
| Apr 12, 4:25 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Scott, Simpson, Smith | 50 min |
| Apr 12, 4:28 PM CDT | Tornado Warning | JAN | Jasper, Jones | 62 min |
| Apr 12, 4:49 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Franklin, Madison, Richland, Tensas, West Carroll | 41 min |
| Apr 12, 5:01 PM CDT | Tornado Warning | JAN | Covington, Jasper, Jones, Smith | 59 min |
| Apr 12, 5:04 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Neshoba, Winston | 29 min |
| Apr 12, 5:06 PM CDT | Tornado Warning | JAN | Lowndes, Noxubee, Oktibbeha, Winston | 38 min |
| Apr 12, 5:06 PM CDT | Tornado Warning | JAN | Clarke, Jasper | 31 min |
| Apr 12, 5:19 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys, Issaquena, Sharkey, Sunflower, Washington | 41 min |
| Apr 12, 5:21 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 39 min |
| Apr 12, 5:40 PM CDT | Flash Flood Warning | JAN | Choctaw, Clay, Lowndes, Oktibbeha, Webster, Winston | 4 hr |
| Apr 12, 5:44 PM CDT | Tornado Warning | JAN | Clarke, Jasper | 35 min |
| Apr 12, 5:45 PM CDT | Tornado Warning | JAN | Kemper, Lauderdale | 31 min |
| Apr 12, 5:56 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Holmes, Madison, Yazoo | 44 min |
| Apr 12, 5:58 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Holmes, Humphreys, Leflore | 47 min |
| Apr 12, 6:00 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 17 min |
| Apr 12, 6:17 PM CDT | Severe Thunderstorm Warning | JAN | Simpson, Smith | 43 min |
| Apr 12, 6:21 PM CDT | Flash Flood Warning | JAN | Lauderdale | 114 min |
| Apr 12, 6:39 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Carroll, Choctaw, Grenada, Montgomery, Webster | 51 min |
| Apr 12, 6:55 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Lauderdale | 65 min |
| Apr 12, 7:13 PM CDT | Tornado Warning | JAN | Kemper | 21 min |
| Apr 12, 7:18 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Ouachita | 42 min |
| Apr 12, 7:56 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Drew | 49 min |
| Apr 12, 7:57 PM CDT | Flash Flood Warning | JAN | Kemper, Lauderdale, Neshoba, Newton | 3 hr |
| Apr 12, 8:08 PM CDT | Severe Thunderstorm Warning | JAN | Ashley | 67 min |
| Apr 12, 8:14 PM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 61 min |
| Apr 12, 8:28 PM CDT | Severe Thunderstorm Warning | LZK | Arkansas, Bradley, Cleveland, Desha, Drew, Jefferson and 5 more | 62 min |
| Apr 12, 8:43 PM CDT | Severe Thunderstorm Warning | LZK | Desha, Drew | 36 min |
| Apr 12, 8:44 PM CDT | Severe Thunderstorm Warning | JAN | Chicot | 76 min |
| Apr 12, 8:46 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar | 74 min |
| Apr 12, 8:51 PM CDT | Severe Thunderstorm Warning | MEG | Coahoma | 54 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 3.7 hours before the alert went out and 104 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
- 323 J/kg
- Mixed-layer CIN
- -279 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 379 m²/s²
- 0-3 km storm-relative helicity
- 562 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 5:52 AM CDT | Tornado Watch | SPC | Union | 8 hr |
| Apr 12, 10:24 AM CDT | Mesoscale Discussion | SPC | Ashley, Chicot | 96 min |
| Apr 12, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | Little River, Miller, Sevier | 5 hr |
| Apr 12, 4:44 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Bradley, Calhoun, Carroll, Clark and 39 more | 2 hr |
| Apr 12, 5:59 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Boone, Bradley, Calhoun, Clark and 47 more | 4 hr |
| Apr 12, 6:14 PM CDT | Mesoscale Discussion | SPC | Boone, Calhoun, Carroll, Clark, Columbia, Conway and 29 more | 91 min |
| Apr 12, 7:18 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 13 more | 87 min |
| Apr 12, 9:30 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 90 min |
| Apr 12, 12:03 PM CDT | Mesoscale Discussion | SPC | East Carroll, Franklin, Madison, Morehouse, Richland, West Carroll | 87 min |
| Apr 12, 1:02 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 12 more | 118 min |
| Apr 12, 1:24 PM CDT | Tornado Watch | SPC | Acadia, Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia and 16 more | 9 hr |
| Apr 12, 5:27 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 6 more | 63 min |
| Apr 12, 5:44 PM CDT | Mesoscale Discussion | SPC | Madison, Tensas | 91 min |
| Apr 12, 1:40 PM CDT | Mesoscale Discussion | SPC | Attala, Choctaw, Hinds, Holmes, Kemper, Lauderdale and 10 more | 95 min |
| Apr 12, 3:38 PM CDT | Mesoscale Discussion | SPC | Copiah, Covington, Jasper, Jefferson Davis, Kemper, Lauderdale and 14 more | 97 min |
| Apr 12, 3:52 PM CDT | Mesoscale Discussion | SPC | Covington, Jefferson Davis, Jones, Marion | 23 min |
| Apr 12, 3:53 PM CDT | Mesoscale Discussion | SPC | Greene, Perry, Wayne | 97 min |
| Apr 12, 4:26 PM CDT | Mesoscale Discussion | SPC | Covington, Jasper, Jones | 34 min |
| Apr 12, 4:38 PM CDT | Tornado Watch | SPC | George, Greene, Perry, Stone, Wayne | 7 hr |
| Apr 12, 4:54 PM CDT | Mesoscale Discussion | SPC | Clarke, Covington, Jasper, Jefferson Davis, Jones, Wayne | 66 min |
Nearby
Tornado Watches in Mississippi, 2020Tornado Watches in Louisiana, 2020Tornado Watches in Arkansas, 2020Every tornado watch in 2020
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.