Alert archive / Mississippi / Tornado Watches in 2024
Tornado Watch 21
The Storm Prediction Center issued this tornado watch at Feb 11, 2024, 6:56 PM CST for 23 parishes in Louisiana; 32 counties in Mississippi. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 11, 2024, 6:56 PM CST (00:56 UTC)
- Expired
- Feb 12, 2024, 3:00 AM CST
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 55 counties
Ascension Parish, LA, Assumption Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Hinds County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Pearl River County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Walthall County, MS, Warren County, MS, Wilkinson County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 57 km from the middle of the area, began a volume at 01:00 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
- 60%
- One or more EF2 to EF5 tornadoes
- 40%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 60%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 7:03 PM CST | Flash Flood Warning | JAN | Claiborne, Hinds, Madison, Warren | 3 hr |
| Feb 11, 9:03 PM CST | Flash Flood Warning | JAN | Copiah, Hinds, Rankin, Scott, Simpson | 3 hr |
| Feb 11, 9:09 PM CST | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, West Baton Rouge | 20 min |
| Feb 11, 10:00 PM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint Helena, Tangipahoa | 18 min |
| Feb 11, 10:17 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Livingston, Saint Helena | 28 min |
| Feb 11, 10:35 PM CST | Severe Thunderstorm Warning | LIX | Washington | 14 min |
| Feb 11, 10:42 PM CST | Severe Thunderstorm Warning | JAN | Covington, Forrest, Jones, Lamar, Marion | 36 min |
| Feb 11, 11:07 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston, West Baton Rouge | 23 min |
| Feb 11, 11:22 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, West Baton Rouge | 11 min |
| Feb 11, 11:34 PM CST | Flash Flood Warning | LIX | East Baton Rouge, Livingston, West Baton Rouge | 2 hr |
| Feb 11, 11:34 PM CST | Severe Thunderstorm Warning | LIX | Walthall | 26 min |
| Feb 11, 11:42 PM CST | Flash Flood Warning | JAN | Simpson | 3 hr |
| Feb 11, 11:43 PM CST | Severe Thunderstorm Warning | JAN | Marion | 30 min |
| Feb 11, 11:55 PM CST | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston | 35 min |
| Feb 12, 12:05 AM CST | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lamar | 27 min |
| Feb 12, 12:11 AM CST | Severe Thunderstorm Warning | JAN | Copiah, Franklin, Lincoln | 34 min |
| Feb 12, 12:17 AM CST | Severe Thunderstorm Warning | LIX | Livingston | 28 min |
| Feb 12, 12:22 AM CST | Severe Thunderstorm Warning | JAN | Jones | 53 min |
| Feb 12, 12:33 AM CST | Severe Thunderstorm Warning | LIX | Livingston, Tangipahoa | 27 min |
| Feb 12, 12:38 AM CST | Severe Thunderstorm Warning | JAN | Clarke, Jasper | 82 min |
| Feb 12, 12:54 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa, Washington | 36 min |
| Feb 12, 12:59 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Saint James | 31 min |
| Feb 12, 1:01 AM CST | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Terrebonne | 29 min |
| Feb 12, 1:22 AM CST | Severe Thunderstorm Warning | LIX | Washington | 38 min |
| Feb 12, 1:40 AM CST | Severe Thunderstorm Warning | JAN | Lamar, Marion | 65 min |
| Feb 12, 1:56 AM CST | Severe Thunderstorm Warning | LIX | Terrebonne | 38 min |
| Feb 12, 2:09 AM CST | Severe Thunderstorm Warning | JAN | Forrest | 46 min |
| Feb 12, 2:24 AM CST | Flash Flood Warning | JAN | Clarke, Jasper, Jones | 2 hr |
| Feb 12, 2:26 AM CST | Severe Thunderstorm Warning | LIX | Lafourche, Saint Charles | 34 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 00:00Z, 0.9 hours before the alert went out and 54 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
- 862 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 321 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted.
105
WWUS20 KWNS 120054
SEL1
SPC WW 120054
LAZ000-MSZ000-120700-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 21
NWS Storm Prediction Center Norman OK
655 PM CST Sun Feb 11 2024
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
East Central Louisiana
Central and Southern Mississippi
* Effective this Sunday night and Monday morning from 655 PM
until 100 AM CST.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Scattered thunderstorms will continue to affect parts of
central/southern Mississippi and east-central Louisiana for several
more hours. Sufficient shear and instability will maintain some
risk of supercells capable of large hail, damaging winds, and
tornadoes.
The tornado watch area is approximately along and 45 statute miles
north and south of a line from 30 miles west southwest of Natchez MS
to 20 miles east of Meridian MS. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 20...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 25035.
...HartSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 11, 6:05 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Concordia, East Baton Rouge and 10 more | 85 min |
| Feb 11, 7:44 PM CST | Mesoscale Discussion | SPC | Acadia, Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia and 12 more | 91 min |
| Feb 11, 11:19 PM CST | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 7 more | 86 min |
| Feb 12, 3:43 AM CST | Tornado Watch | SPC | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles, Saint Tammany | 3 hr |
| Feb 12, 1:41 AM CST | Tornado Watch | SPC | George, Greene, Perry, Stone, Wayne | 7 hr |
| Feb 12, 4:16 AM CST | Mesoscale Discussion | SPC | Jackson | 2 hr |
Nearby
Tornado Watches in Mississippi, 2024Tornado Watches in Louisiana, 2024Every tornado watch in 2024
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.