A frontal boundary became stationary across the heart of the Ark-La-Tex region in vicinity of the Interstate 30 corridor on April 8th before slowly advancing southeast on April 9th. Concurrently, very moist southwest flow aloft resulting from a nearly cut-off low across the Desert Southwest provided for precipitable water values near 2 inches.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SHV wrote it up.
A frontal boundary became stationary across the heart of the Ark-La-Tex region in vicinity of the Interstate 30 corridor on April 8th before slowly advancing southeast on April 9th. Concurrently, very moist southwest flow aloft resulting from a nearly cut-off low across the Desert Southwest provided for precipitable water values near 2 inches. Thunderstorms developed and gradually spread northward from Central into Northeast Texas, Southwest Arkansas, and Northern Louisiana in the afternoon and evening on April 8th and continued throughout April 9th before gradually tapering off early on the 10th, resulting in widespread rainfall amounts of 4-8 inches across the region. This convection also occurred along the northern periphery of deeper returning low-level moisture with MLCAPE in excess of 1500 J/kg and favorable deep-layer shear. As a result, the threat of large hail and gusty winds increased by late afternoon into the early evening on April 8th and early on April 9th. As the low-level jet strengthened, convection became more organized with a few supercells and increasing thunderstorm clusters. During this timeframe, numerous reports damaging wind gusts and flash flooding were received across Northern Louisiana.
The local office's own words before the first event, 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 the first event at Apr 8, 8:55 PM CST, 20 minutes earlier.
Area Forecast Discussion
National Weather Service Shreveport LA
955 PM CDT Mon Apr 8 2024
...New UPDATE...
.UPDATE...
Issued at 820 PM CDT Mon Apr 8 2024
The synoptic pattern this evening features a closed area of low
pressure over NW Mexico, making for SW aloft downstream across
the Southern Great Plains and ArkLaTex regions. There are a few
subtle perturbations passing through this flow aloft, providing
some lift within a warm and moist airmass across the
aforementioned regions.
As of 9PM, convection is ongoing across the CWA, with a refreshed
Tornado Watch issued through 1AM for much of E TX and NW LA.
Although convection has been loosely organized thus far this
evening, an increasing LLJ around 850mb is expected to help
maintain and/or enhance already impressive low level helicity and
shear values. In general, expect 0-1km low level shear values to
range around 25-30kts, with 0-1 helicity values of 200-300m2/s2.
Within a somewhat unstable environment, expect these conditions to
be favorable for a few supercells and/or strong to severe storms
to exhibit the potential for rotation. However, uncertainty does
exist in the fact that the environment has been fairly conducive
for organized convection but have yet to really see it
materialize. That said, the threat for severe weather will persist
into the overnight hours, with model guidance still insistent on
the potential for storms/areas of heavy rain to stall around the
I-20 vicinity overnight and cause concern for flooding into
Tuesday morning.
Have made very minor adjustments to the forecast this evening,
mainly to temperatures given recent trends. All else is on track.
Expect wet conditions with embedded storms with lows dipping into
the low 60s across SE OK and SW AR and stalling in the mid to
upper 60s elsewhere
&&
.SHORT TERM...
(This evening through Tuesday Night)
Issued at 247 PM CDT Mon Apr 8 2024
Temperature recovery was quick in the wake of the big eclipse as
the radiative aspect of heating was pretty much left intact from
the warmed ground. Current readings are in the upper 70s and lower
80s for the most part with some cooler "rain showered-on" sites
in the lower 70s. Prevailing winds are E/SE giving rise to our
Tornado threat with low levels SE up to 3kft and then veering
around to SW flow by 6-7kft. Looking at our 19Z balloon ascent,
Dcape is over 1000J/kg with some mid level dry air 700-500mb and
damaging winds possible along with hail and tornadoes with the
current watch until 8pm.
This first big wave will be shifting northward along with our
warm front, but exactly how far will be pivotal for new
development. Generally, we are looking for higher rain totals by
morning north of I-20. Then, the cold front will take a swing at
making more heavy weather for us to contend with through the
balance of the short term. The SPC Enhanced/Slight Risks
continue for storms again tomorrow and even part of early
Wednesday for our Parishes. As time goes by and we saturate the
air and ground, the flooding threat will likely become the
dominant threat into Wednesday. The WPC has the Moderate Risk for
excessive rainfall outlooked right over the heart of our Four-
State area tomorrow am through early Wednesday. /24/
&&
.LONG TERM...
(Wednesday through next Sunday)
Issued at 247 PM CDT Mon Apr 8 2024
We are pretty much right with NBM numbers across the board short
and long terms, under all these clouds and eventually our
southerly flow off the Gulf will shut off late Wednesday as the
core low swings overhead of our I-30 corridor. Good agreement on
GFS and ECMWF. And we can expect mild Gulf air temps to continue
with the wettest weather and then the cold front shifting the
winds to NW will wrap things up for us during the afternoon hours
on Wednesday turning cooler.
Look for morning lows to drop back into the 50s by Thursday under
still mostly cloudy skies through the night. And then 40s by
Friday with high pressure, light winds and fair skies, but quickly
warming back from there over the weekend. Meanwhile, our high
temps will be cooler and near average in the low to mid 70s for
Thursday with brisk NW winds continuing. However, sunshine and
lighter winds allow the 80s to creep back northward even before
the weekend. Area wide this weekend highs will see low to mid 80s
for most locales with dry weather lasting into next week. /24/
&&
.AVIATION...
(00Z TAFS)
Issued at 640 PM CDT Mon Apr 8 2024
A weak surface boundary across the region combined with a series
of upper-level disturbances will maintain an unstable airmass that
will support periods of widespread TSRA conditions through the
forecast period ending 10/00Z. Additionally, ceilings are forecast
to become IFR/LIFR through the overnight hours before gradually
improving to MVFR throughout Tuesday. Otherwise, south to
southeast winds 10 knots tonight to become 10 to 15 knots on
Tuesday. /05/
&&
.PRELIMINARY POINT TEMPS/POPS...
SHV 67 76 66 77 / 100 80 100 90
MLU 65 78 65 76 / 100 80 90 100
DEQ 61 69 59 70 / 100 100 90 90
TXK 64 71 63 72 / 100 100 100 90
ELD 62 72 62 73 / 100 90 100 100
TYR 65 73 64 74 / 100 90 90 80
GGG 66 75 64 76 / 100 90 90 80
LFK 67 80 65 78 / 80 70 90 70
&&
.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Flood Watch through Wednesday evening for ARZ050-051-059>061-
070>073.
LA...Flood Watch through Wednesday evening for LAZ001>006-010>014-
017>022.
OK...Flood Watch through Wednesday evening for OKZ077.
TX...Flood Watch through Wednesday evening for TXZ096-097-108>112-
124>126-136>138-149>153-165>167.
&&
SHORT TERM...24
LONG TERM....24
AVIATION...05Hazardous Weather Outlook National Weather Service Shreveport LA 556 AM CDT Mon Apr 8 2024 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-091200- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto- Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant- Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-Morris-Cass- Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-Panola- Nacogdoches-Shelby-Angelina-San Augustine- 556 AM CDT Mon Apr 8 2024 ...FLOOD WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON... This Hazardous Weather Outlook is for south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and tonight. Showers and thunderstorms will increase in coverage and intensity today through tonight with some of these possibly becoming strong to severe. Large hail and damaging thunderstorm wind gusts will be the main threats, but an isolated tornado cannot be ruled out as well. Excessive heavy rainfall will begin this afternoon across portions of the region with this threat becoming widespread overnight tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Excessive heavy rainfall will continue to be a very concerning threat with possible widespread flooding across portions of the Four State Region Tuesday into Wednesday. In addition, there will continue to a severe weather threat across much of the region through Wednesday as well with large hail, damaging thunderstorm wind gusts and isolated tornadoes possible. The rainfall should taper off Wednesday Night from west to east across the region but area waterways will likely see possible significant rises with crests not expected until the upcoming weekend into early next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will be possible as early as this afternoon. 13
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</html>Special Weather Statement
National Weather Service Shreveport LA
949 PM CDT Mon Apr 8 2024
TXZ126-138-090330-
Harrison TX-Marion TX-
949 PM CDT Mon Apr 8 2024
...STRONG THUNDERSTORMS WILL IMPACT EASTERN MARION AND HARRISON
COUNTIES THROUGH 1030 PM CDT...
At 948 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms near Hallsville, or 7 miles southwest of Marshall,
moving northeast at 30 mph.
HAZARD...Wind gusts up to 50 mph and pea 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...
Marshall, Jefferson, Karnack, Elysian Fields, Lodi, Woodlawn,
Smithland, Berea, Gray, Scottsville, Uncertain, Nesbitt, Darco, and
Leigh.
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.
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 100 AM CDT for northeastern
Texas.
&&
LAT...LON 3287 9441 3287 9405 3237 9415 3234 9430
3243 9459
TIME...MOT...LOC 0248Z 206DEG 27KT 3248 9446
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
19Preliminary Local Storm Report
National Weather Service Shreveport LA
1000 PM CDT Mon Apr 8 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0950 PM Flash Flood 3 WNW Marshall 32.55N 94.39W
04/08/2024 Harrison TX Law Enforcement
Water over roads in Marshall at the corner
of W Grand and Ward Street as well as two
other nearby intersections.
&&
MMSpecial Weather Statement
National Weather Service Shreveport LA
1005 PM CDT Mon Apr 8 2024
TXZ137-138-150-090345-
Gregg TX-Harrison TX-Rusk TX-
1005 PM CDT Mon Apr 8 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN HARRISON...NORTHERN
RUSK AND SOUTHEASTERN GREGG COUNTIES THROUGH 1045 PM CDT...
At 1004 PM CDT, Doppler radar was tracking a strong thunderstorm over
Henderson, 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...
Longview, Henderson, Hallsville, Tatum, Lakeport, Easton, Chapman,
Monroe, Darco, Stewart, Chalk Hill, Church Hill, and Oak Hill.
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.
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 100 AM CDT for northeastern
Texas.
&&
LAT...LON 3258 9467 3245 9439 3237 9445 3239 9449
3236 9449 3228 9453 3225 9456 3219 9458
3203 9470 3211 9489
TIME...MOT...LOC 0304Z 206DEG 26KT 3215 9476
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
19The Shreveport radar (KSHV), 9 km away, was scanning. The volume nearest the first event began at 03:15 UTC.
12 flash flood, 9 thunderstorm wind, 4 flood, 1 tornado. Local standard time, as filed.
Flash flooding reported at the Interstate 49 interchanges with Interstate 20 and East 70th Street.
High water covered parts of Colquitt Road near Ridgehaven Drive just west of Keithville.
Tree downed at the intersection of Crabapple Drive and Poinsettia Drive.
Large branches downed along Highway 71 southeast of Atkins with a measured wind gust of 64 mph near Mary Magdalene Cemetery.
Flash flooding reported at the intersection of Airline Drive and Barksdale Boulevard with water covering the road.
Flash flooding reported at Highway 71 and Highway 784 in Coushatta with water covering the road.
Tree downed on Highway 71 near Coushatta.
Flash flooding reported along Meriwether Road.
Flash flooding reported on Dean Road near Dewberry Road in southwest Shreveport.
Flash flooding reported on Tynneside Way near Williamson Way with water covering the road.
Trees downed across the 500 block of Highway 120 in Marthaville with numerous trees downed across central and northern Natchitoches Parish.
Trees downed across the 500 block of Highway 479 near Chestnut.
Trees downed across Interstate 20 eastbound at mile marker 101 in Calhoun, forcing the closure of the interstate for a few hours.
Trees downed and some snapped on the University of Louisiana Monroe campus.
A measured wind gust of 62 mph was recorded at Monroe Regional Airport.
Flash flooding with water approximately one foot deep reported around a parking garage on the University of Louisiana Monroe campus.
Flash flooding reported in a residential neighborhood near the University of Louisiana Monroe campus.
Multiple trees and power lines downed at Kites Marina.
An NWS Storm Survey found that a high precipitation supercell thunderstorm crossing over the Toledo Bend Reservoir on the evening of April 9th produced a weak EF-0 tornado with estimated maximum winds near 85 mph, beginning in the vicinity of Kites Landing on the western shore of the far southwestern portion of Sabine Parish. The tornado tracked northeast for a little shy of 4 miles, just along or north of Ferguson Road and ending near the intersection of Highway 191 and Prospect Road. Fortunately, the tornado mainly did just tree damage in the form of many hardwood and softwood uproots and breaking of large branches. Many other trees were downed or lost limbs near and to the south of the surveyed tornado due to straight line winds as the south flank of the aforementioned supercell thunderstorm evolved into more of a bowing line segment. These straight line winds also damaged a few structures, mostly due to falling tree debris, in the Pirates Cove area, along the Toledo Bend Forest Scenic Byway, and along Rattan Road. Fortunately, no injuries or fatalities were associated with both the tornado and the straight line winds and structural damage was relatively minimal.
Widespread heavy rainfall of six to ten inches occurred across central and southern Caddo Parish from April 8th through April 10th, inundating Cross Lake and several feeder bayous that flow into the lake. As a result, Cross Lake rose rapidly above flood stage on April 9th and eventually crested near 175.2 feet on April 11th. The lake remained above the 173 foot flood stage through April 14th, with a few nearby homes flooded in areas immediately surrounding the lake along with a few road closures. The lake was also closed to all boat traffic.
Flash flooding reported on Stuart Lake Road and Highway 167 south of Bentley.
Flash flooding reported on Ash Street and Lake Street in Colfax.
Flash flooding reported on the Austin Road bridge near the baseball fields in Jena with a foot of water covering the road.
A driver drove around barricades on Keithville-Kingston Road which was flooded due to the swollen Cypress Bayou draining into Wallace Lake. The vehicle was nearly submerged, and the driver had to be rescued by boat.
Widespread heavy rainfall of six to ten inches occurred across central and southern Caddo Parish from April 8th through April 10th, inundating Cypress Bayou and other neighboring feeder bayous that flow into Wallace Lake. As a result, Wallace Lake rose rapidly above flood stage on April 10th and eventually crested near 156.5 feet on April 12th. The lake remained above the 151 foot flood stage for roughly a week thereafter with several roads flooded and closed along Lower Kingston Road, Barron Road, and Linwood Avenue in far southern Caddo Parish due to backwater flooding along Cypress Bayou and Boggy Bayou.
Widespread heavy rainfall of six to ten inches occurred across much of the Sabine River basin of East Texas and West Central Louisiana Parish April 8th through April 10th, inundating the basin and especially points farther downstream and namely at Logansport. As a result, the Sabine River rose rapidly into moderate flood stage (32 feet) early on April 12th and eventually crested near 33.4 feet on April 13th. The river remained in moderate flood stage through late afternoon on April 15th before receding through the latter half of April.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2024Every state in 2024This day in weather historyThe tornado archive for Louisiana, 2024Warnings in Louisiana, April 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1175592, 1175646, 1175593, 1175600, 1175649, 1175651, 1175594, 1175653, 1175658, 1175661, 1175595, 1175596, 1175597, 1175598, 1175601, 1175664, 1175665, 1175599, 1175767, 1177373, 1175666, 1175667, 1175668, 1175764, 1177355, 1177396.