Alert archive / Texas / Tornado Watches in 2023

Tornado Watch 95

March 31, 202310 parishes in Louisiana; 36 counties in Texas

The Storm Prediction Center issued this tornado watch at Mar 31, 2023, 1:36 PM CDT for 10 parishes in Louisiana; 36 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 31, 2023, 1:36 PM CDT (18:36 UTC)
Expired
Mar 31, 2023, 9:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 46 counties

Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Lincoln Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Anderson County, TX, Angelina County, TX, Camp County, TX, Cherokee County, TX, Delta County, TX, Falls County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Limestone County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Navarro County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Trinity County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 134 km from the middle of the area, began a volume at 18:35 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
40%
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
70%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 31, 1:55 PM CDTSevere Thunderstorm WarningFWDEllis, Henderson, Kaufman, Navarro37 min
Mar 31, 2:00 PM CDTSevere Thunderstorm WarningFWDLamar30 min
Mar 31, 2:08 PM CDTSevere Thunderstorm WarningSHVRed River52 min
Mar 31, 3:15 PM CDTSevere Thunderstorm WarningSHVBowie, Franklin, Morris, Red River, Titus45 min
Mar 31, 3:17 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone, Henderson, Navarro28 min
Mar 31, 3:30 PM CDTSevere Thunderstorm WarningFWDFreestone, Limestone, Navarro30 min
Mar 31, 3:44 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson46 min
Mar 31, 3:46 PM CDTSevere Thunderstorm WarningSHVFranklin, Morris, Titus29 min
Mar 31, 3:55 PM CDTTornado WarningSHVSmith19 min
Mar 31, 4:00 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone, Limestone45 min
Mar 31, 4:12 PM CDTSevere Thunderstorm Warning Considerable damage threatSHVCherokee, Gregg, Rusk, Smith48 min
Mar 31, 4:45 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone39 min
Mar 31, 4:49 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Panola, Rusk41 min
Mar 31, 5:12 PM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Rusk48 min
Mar 31, 6:00 PM CDTSevere Thunderstorm WarningSHVPanola, Rusk, Shelby45 min
Mar 31, 6:42 PM CDTSevere Thunderstorm WarningSHVDe Soto48 min
Mar 31, 7:01 PM CDTSevere Thunderstorm WarningHGXHouston, Trinity44 min
Mar 31, 7:28 PM CDTSevere Thunderstorm Warning Considerable damage threatSHVDe Soto, Red River, Sabine47 min
Mar 31, 7:48 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches42 min
Mar 31, 8:13 PM CDTSevere Thunderstorm WarningSHVDe Soto, Natchitoches, Red River34 min
Mar 31, 8:32 PM CDTSevere Thunderstorm WarningHGXPolk, Trinity29 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

Shreveport, LA (KSHV), launched 12:00Z, 6.6 hours before the alert went out and 143 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.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2023-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2023-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
351 J/kg
Mixed-layer CIN
-294 J/kg
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
459 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 10:44 AM CDTMesoscale DiscussionSPCArkansas, Clark, Cleburne, Cleveland, Conway, Craighead and 49 more2 hr
Mar 31, 10:47 AM CDTMesoscale DiscussionSPCArkansas, Crittenden, Cross, Jefferson, Lee, Lincoln and 5 more58 min
Mar 31, 12:28 PM CDTTornado Watch PDSSPCArkansas, Baxter, Boone, Bradley, Calhoun, Clark and 60 more11 hr
Mar 31, 1:42 PM CDTMesoscale DiscussionSPCClark, Conway, Faulkner, Garland, Grant, Hot Spring and 7 more93 min
Mar 31, 2:36 PM CDTMesoscale DiscussionSPCLonoke, Prairie, Pulaski, White, Woodruff24 min
Mar 31, 3:42 PM CDTMesoscale DiscussionSPCArkansas, Clark, Clay, Cleburne, Cleveland, Conway and 47 more93 min
Mar 31, 4:53 PM CDTMesoscale DiscussionSPCColumbia, Hempstead, Lafayette, Little River, Miller, Nevada2 hr
Mar 31, 6:34 PM CDTMesoscale DiscussionSPCArkansas, Crittenden, Cross, Lee, Monroe, Phillips and 3 more56 min
Mar 31, 6:59 PM CDTMesoscale DiscussionSPCArkansas, Crittenden, Cross, Lee, Monroe, Phillips and 3 more61 min
Mar 31, 1:16 PM CDTMesoscale DiscussionSPCBell, Coryell, Delta, Ellis, Falls, Fannin and 17 more89 min

Nearby

Tornado Watches in Texas, 2023Tornado Watches in Louisiana, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.