Alert archive / Texas / Flash Flood Warnings in 2024

Flash Flood Warning 17, NWS Shreveport, LA

April 9, 2024Angelina County, Sabine County, San Augustine County, Texas; Sabine Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Apr 9, 2024, 9:23 PM CDT for Angelina County, Sabine County, San Augustine County, Texas; Sabine Parish, Louisiana. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 9, 2024, 9:23 PM CDT (02:23 UTC)
Expired
Apr 10, 2024, 2:30 AM CDT
In force
5 hr
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
None

Counties Sabine Parish, LA, Angelina County, TX, Sabine County, TX, San Augustine County, TX

The radar

The Ft Polk radar (KPOE), 105 km from the middle of the area, began a volume at 02:26 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

Shreveport, LA (KSHV), launched 00:00Z, 2.4 hours before the alert went out and 125 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 00:00Z on 2024-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2024-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1148 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Apr 9, 9:20 PM CDT, 3 minutes earlier.

Area forecast discussion, Apr 9, 9:20 PM CDT, 3 minutes before
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Hazardous weather outlook, Apr 9, 3:13 PM CDT, 6 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
313 PM CDT Tue Apr 9 2024

LAZ001>006-010>014-017>022-TXZ136>138-149>153-165>167-101200-
Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-Red River-
Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-Caldwell-
La Salle-Smith-Gregg-Harrison-Cherokee-Rusk-Panola-Nacogdoches-
Shelby-Angelina-San Augustine-
313 PM CDT Tue Apr 9 2024

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...
...TORNADO WATCH 95 IN EFFECT UNTIL 9 PM CDT THIS EVENING...

This Hazardous Weather Outlook is for north central Louisiana,
northwest Louisiana, east Texas and northeast Texas.

.DAY ONE...This afternoon and tonight.

Showers and thunderstorms will continue to develop and spread east
across Deep East Texas and much of North Louisiana this afternoon and
early evening, with the threat for damaging winds, hail, and isolated
tornadoes. The threat for locally heavy rainfall and flash flooding
will also continue across the area this afternoon and tonight, with
additional shower and thunderstorm development expected even in wake
of these storms from Deep East Texas into North Louisiana. A second
complex of strong to severe thunderstorms is expected to enter
portions of Deep East Texas shortly before daybreak Wednesday.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The heavy rainfall and flood theat should begin to taper off from
west to east across the region Wednesday, although the potential for
severe thunderstorms will continue through midday across North
Louisiana before ending. Damaging winds, hail, and isolated tornadoes
will remain possible through midday with this second line of strong
to severe thunderstorms, with the rains finally diminishing from west
to east Wednesday night with the passage of a strong upper level
disturbance.

Additional rises from recent rainfall will continue to impact area
waterways with crests likely not reached until the end of the work
week, the upcoming weekend or next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed this afternoon through
tonight.

ARZ050-051-059>061-070>073-OKZ077-TXZ096-097-108>112-124>126-101200-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-McCurtain-Red River-Bowie-Franklin-Titus-Camp-Morris-
Cass-Wood-Upshur-Marion-
313 PM CDT Tue Apr 9 2024

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...

This Hazardous Weather Outlook is for south central Arkansas,
southwest Arkansas, southeast Oklahoma and northeast Texas.

.DAY ONE...This afternoon and tonight.

Showers and embedded thunderstorms will continue to affect Northeast
Texas and Southern Arkansas this afternoon and evening, with
additional heavy rainfall possible over these areas. While
diminishing across Northeast Texas this evening, additional shower
and thunderstorm redevelopment is expected through tonight over much
of Southern Arkansas, which may result in a flood threat. Another
complex of showers and thunderstorms will move into Northeast Texas
and Southern Arkansas around and after daybreak Wednesday, which may
result in additional heavy rainfall and flooding over these areas.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Showers and thunderstorms, some of which may be strong, will be
ongoing Wednesday morning across Southern Arkansas, and may be
capable of producing locally gusty winds and heavy rainfall, which
may result in flooding. These threats will begin to diminish by early
Wednesday afternoon, although scattered rains will linger through
Wednesday night before diminishing from west to east late.

Additional rises from recent rainfall will continue to impact area
waterways with crests likely not reached until the end of the work
week, the upcoming weekend or next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and tonight for
Southern Arkansas.

15

In the hours before

Local storm report, Apr 9, 7:05 PM CDT, 2 hours 18 minutes before
Preliminary Local Storm Report
National Weather Service Shreveport LA
705 PM CDT Tue Apr 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0640 PM     Flash Flood      2 NE Monroe             32.53N 92.07W
04/09/2024                   Ouachita           LA   Public

            Flooding around a parking garage on the
            campus of the University of Louisiana
            Monroe. Reported a foot of water was
            present, has since started to recede.

&&

RK
Local storm report, Apr 9, 7:17 PM CDT, 2 hours 6 minutes before
Preliminary Local Storm Report
National Weather Service Shreveport LA
717 PM CDT Tue Apr 9 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0610 PM     Tstm Wnd Dmg     2 NE Monroe             32.53N 92.07W
04/09/2024                   Ouachita           LA   Public

            Trees down, some snapped on the campus of
            the University of Louisiana Monroe.

&&

RK
Special weather statement, Apr 9, 7:49 PM CDT, 1 hour 34 minutes before
Special Weather Statement
National Weather Service Shreveport LA
749 PM CDT Tue Apr 9 2024

LAZ010-011-018-100115-
De Soto LA-Natchitoches LA-Red River LA-
749 PM CDT Tue Apr 9 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN DE SOTO...
SOUTHEASTERN RED RIVER AND NORTHWESTERN NATCHITOCHES PARISHES THROUGH
815 PM CDT...

At 749 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Coushatta, or 18 miles northwest of Natchitoches,
moving northeast at 45 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Coushatta, Campti, Allen, Martin, Ashland, Powhatan, Lake End, Black
Lake, Creston, Hanna, and Ajax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 900 PM CDT for northwestern
Louisiana.

&&

LAT...LON 3192 9348 3215 9315 3215 9309 3193 9292
      3177 9336
TIME...MOT...LOC 0049Z 235DEG 37KT 3189 9335

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

53
Special weather statement, Apr 9, 7:55 PM CDT, 1 hour 28 minutes before
Special Weather Statement
National Weather Service Shreveport LA
755 PM CDT Tue Apr 9 2024

TXZ166-167-100130-
Sabine TX-San Augustine TX-
755 PM CDT Tue Apr 9 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN SAN AUGUSTINE AND
SOUTHWESTERN SABINE COUNTIES THROUGH 830 PM CDT...

At 754 PM CDT, Doppler radar was tracking a strong thunderstorm near
Pineland, or 12 miles northeast of Ebenezer, moving northeast at 30
mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Pineland, Rosevine, Bronson, McElroy, and Yellowpine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 900 PM CDT for eastern Texas.

&&

LAT...LON 3111 9415 3111 9416 3112 9416 3112 9418
      3114 9419 3148 9407 3127 9380 3115 9394
      3114 9404 3112 9404 3111 9406 3110 9413
TIME...MOT...LOC 0054Z 209DEG 25KT 3120 9407

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

53
Special weather statement, Apr 9, 8:18 PM CDT, 1 hour 5 minutes before
Special Weather Statement
National Weather Service Shreveport LA
818 PM CDT Tue Apr 9 2024

LAZ011-012-018-019-100200-
Winn LA-Bienville LA-Natchitoches LA-Red River LA-
818 PM CDT Tue Apr 9 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN RED RIVER...NORTH
CENTRAL NATCHITOCHES...SOUTHEASTERN BIENVILLE AND NORTHWESTERN WINN
PARISHES THROUGH 900 PM CDT...

At 817 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Campti, or 17 miles north of Natchitoches, moving
northeast at 35 mph.

HAZARD...Wind gusts up to 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Campti, Martin, Goldonna, Saline, Lucky, Ashland, Bienville,
Powhatan, Brice, Friendship, Black Lake, Chestnut, and Creston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

A Tornado Watch remains in effect until 900 PM CDT for north central
and northwestern Louisiana.

&&

LAT...LON 3202 9270 3185 9320 3200 9332 3236 9298
      3216 9282 3215 9282 3215 9280
TIME...MOT...LOC 0117Z 236DEG 29KT 3198 9319

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

05
Special weather statement, Apr 9, 8:42 PM CDT, 41 minutes before
Special Weather Statement
National Weather Service Shreveport LA
842 PM CDT Tue Apr 9 2024

LAZ010-011-017-018-100215-
De Soto LA-Natchitoches LA-Red River LA-Sabine LA-
842 PM CDT Tue Apr 9 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN DE SOTO...SOUTH
CENTRAL RED RIVER...WEST CENTRAL NATCHITOCHES AND NORTH CENTRAL
SABINE PARISHES THROUGH 915 PM CDT...

At 842 PM CDT, Doppler radar was tracking a strong thunderstorm 12
miles east of Converse, or 22 miles southeast of Mansfield, moving
northeast at 40 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Coushatta, Allen, Pleasant Hill, Lake End, Belmont, Hanna,
Marthaville, Rambin, Armistead, and Ajax.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 900 PM CDT for northwestern
Louisiana.

&&

LAT...LON 3164 9357 3179 9362 3205 9337 3182 9318
TIME...MOT...LOC 0142Z 245DEG 36KT 3176 9349

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

53

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 7:55 PM CDTSpecial Weather StatementSHVSabine35 min
Apr 9, 8:10 PM CDTSevere Thunderstorm WarningSHVSabine, San Augustine, Shelby50 min
Apr 9, 8:49 PM CDTTornado WarningSHVSabine26 min
Apr 9, 8:52 PM CDTRiver Flood WarningSHVAngelina, Cherokee, Nacogdoches21 days
Apr 9, 8:52 PM CDTRiver Flood WarningSHVAngelina, Cherokee, Nacogdoches6 days
Apr 9, 8:54 PM CDTRiver Flood WarningSHVAnderson, Cherokee, Houston, Trinity44 days
Apr 9, 8:54 PM CDTRiver Flood WarningSHVAngelina, Houston, Polk, Trinity, Tyler51 days
Apr 9, 8:57 PM CDTRiver Flood WarningSHVPanola, Shelby10 days
Apr 9, 9:00 PM CDTRiver Flood WarningSHVSabine, San Augustine39 hr
Apr 9, 9:00 PM CDTRiver Flood WarningSHVNacogdoches, Rusk, San Augustine, Shelby9 days
Apr 9, 9:00 PM CDTSevere Thunderstorm WarningSHVSabine45 min
Apr 9, 9:44 PM CDTSpecial Weather StatementSHVSabine31 min
Apr 9, 11:41 PM CDTSevere Thunderstorm WarningSHVAngelina35 min
Apr 10, 12:44 AM CDTSpecial Weather StatementSHVAngelina31 min
Apr 10, 10:03 AM CDTRiver Flood WarningSHVCass, Harrison, Marion10 days
Apr 10, 10:57 AM CDTRiver Flood WarningSHVAngelina, Cherokee, Nacogdoches75 days
Apr 10, 2:49 PM CDTWind AdvisorySHVAngelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more28 hr
Apr 10, 2:58 PM CDTSpecial Weather StatementSHVRusk47 min
Apr 10, 3:18 PM CDTSpecial Weather StatementSHVHarrison42 min
Apr 10, 3:41 PM CDTSpecial Weather StatementSHVRusk34 min
Apr 10, 4:23 PM CDTAreal Flood AdvisorySHVCass, Harrison, Marion3 hr
Apr 10, 4:29 PM CDTSpecial Weather StatementSHVPanola46 min
Apr 9, 7:49 PM CDTSpecial Weather StatementSHVRed River26 min
Apr 9, 8:18 PM CDTSpecial Weather StatementSHVBienville42 min
Apr 9, 8:42 PM CDTSpecial Weather StatementSHVRed River33 min
Apr 9, 8:50 PM CDTRiver Flood WarningSHVCaldwell, Grant, LaSalle, Winn11 days
Apr 9, 9:09 PM CDTRiver Flood WarningSHVBienville, Bossier14 days
Apr 9, 9:12 PM CDTSevere Thunderstorm WarningSHVBienville, Bossier, Caddo, De Soto, Red River, Webster48 min
Apr 9, 9:33 PM CDTSpecial Weather StatementSHVRed River27 min
Apr 9, 10:12 PM CDTSpecial Weather StatementSHVSabine33 min
Apr 9, 10:41 PM CDTAreal Flood AdvisorySHVBienville, Caldwell, Claiborne, Jackson, Lincoln, Ouachita and 1 more3 hr
Apr 9, 10:46 PM CDTSpecial Weather StatementSHVNatchitoches29 min
Apr 9, 11:04 PM CDTFlash Flood WarningSHVBienville, Grant, Jackson, Natchitoches, Red River, Winn3 hr
Apr 9, 11:21 PM CDTSpecial Weather StatementSHVGrant, Winn24 min
Apr 10, 12:47 AM CDTFlash Flood WarningSHVCaldwell, Grant, LaSalle13 hr
Apr 10, 1:34 AM CDTFlash Flood WarningSHVCaldwell, Jackson, Ouachita5 hr
Apr 10, 2:19 AM CDTFlash Flood WarningSHVGrant, Natchitoches, Winn5 hr
Apr 10, 5:05 PM CDTSpecial Weather StatementSHVDe Soto40 min
Apr 10, 3:36 PM CDTSpecial Weather StatementSHVMiller24 min
Apr 10, 4:04 PM CDTSpecial Weather StatementSHVMiller26 min

Nearby

Flash Flood Warnings in Texas, 2024Flash Flood Warnings in Louisiana, 2024Every flash flood warning 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.