Alert archive / Louisiana / Tornado Watches in 2023

Tornado Watch 99

March 31, 20234 states

The Storm Prediction Center issued this tornado watch at Mar 31, 2023, 8:24 PM CDT for 4 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Mar 31, 2023, 8:24 PM CDT (01:24 UTC)
Expired
Apr 1, 2023, 3:58 AM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 55 counties

Ashley County, AR, Chicot County, AR, Union County, AR, Avoyelles Parish, LA, Bienville Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Richland Parish, LA, Sabine Parish, LA, Tensas Parish, LA, Union Parish, LA, Vernon Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Attala County, MS, Bolivar County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Copiah County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jefferson County, MS, Leflore County, MS, Madison County, MS, Montgomery County, MS, Rankin County, MS, Sharkey County, MS, Sunflower County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Yazoo County, MS, Jasper County, TX, Newton County, TX, Sabine County, TX, San Augustine County, TX, Tyler County, TX

The radar

The Ft Polk radar (KPOE), 121 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 31, 10:19 PM CDTSevere Thunderstorm WarningJANBolivar41 min
Mar 31, 10:34 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Lincoln41 min
Mar 31, 11:15 PM CDTSevere Thunderstorm Warning Considerable damage threatSHVJackson, Lincoln, Ouachita60 min
Mar 31, 11:29 PM CDTSevere Thunderstorm WarningJANMadison, Morehouse, Richland, West Carroll61 min
Apr 1, 12:26 AM CDTSevere Thunderstorm WarningJANEast Carroll, Madison49 min
Apr 1, 1:11 AM CDTSevere Thunderstorm WarningJANFranklin, Madison37 min
Apr 1, 2:00 AM CDTSevere Thunderstorm WarningJANHinds, Issaquena, Madison, Warren, Yazoo60 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 7:42 PM CDTMesoscale DiscussionSPCAshley, Chicot2 hr
Mar 31, 10:23 PM CDTMesoscale DiscussionSPCDesha2 hr
Apr 1, 2:03 AM CDTMesoscale DiscussionSPCCaldwell, Catahoula, East Carroll, Franklin, Grant, LaSalle and 2 more87 min
Mar 31, 11:20 PM CDTMesoscale DiscussionSPCAlcorn, Itawamba, Prentiss, Tippah, Tishomingo115 min
Mar 31, 11:59 PM CDTTornado WatchSPCAlcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 10 more6 hr
Apr 1, 1:13 AM CDTMesoscale DiscussionSPCCalhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 3 more92 min
Apr 1, 2:40 AM CDTTornado WatchSPCClarke, Clay, Jasper, Kemper, Lauderdale, Leake and 9 more4 hr

Nearby

Tornado Watches in Louisiana, 2023Tornado Watches in Mississippi, 2023Tornado Watches in Texas, 2023Every tornado watch in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.