A moist and unstable airmass was present during the early morning hours on March 14th across Southwest Arkansas, ahead of a cold front and associated vigorous upper level trough which moved into the Plains earlier in the day on the 13th. Strong forcing along the upper trough developed near and just ahead of the cold front, resulting in a line of strong to severe thunderstorms developing along…
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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 moist and unstable airmass was present during the early morning hours on March 14th across Southwest Arkansas, ahead of a cold front and associated vigorous upper level trough which moved into the Plains earlier in the day on the 13th. Strong forcing along the upper trough developed near and just ahead of the cold front, resulting in a line of strong to severe thunderstorms developing along the front across Eastcentral Texas after 1 am on the 14th. These storms marched east into extreme Southern Arkansas after 4 am, and produced several reports of damaging winds which downed trees across Southern Lafayette and Columbia Counties.
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 Mar 14, 2:19 AM CST, 43 minutes earlier.
Area Forecast Discussion
National Weather Service Shreveport LA
319 AM CDT Thu Mar 14 2019
.UPDATE...
Updated to include svr tstm watch issued for western 2/3rd of
cwa./07/.
&&
.PREV DISCUSSION... /issued 125 AM CDT Thu Mar 14 2019/
UPDATE...
Update to clean up wording removing mention of convection which
exited area to the ne around midnight, and at the same time
introducing pops and wx to reflect line stg tstms entering western
cwa in assoc with pre frontal trough. These storms will gradually
weaken with corresponding gradual decrease in pops as they move
east across the area. Also removed the mention of fog over ne TX
which mixed out with approach of trough./07/.
PREV DISCUSSION... /issued 1208 AM CDT Thu Mar 14 2019/
AVIATION...
Cigs have fallen to ifr across most terminals across the area
except for low vfr to high mvfr still prevailing at kmlu. Patchy
dense fog is possible across mainly ne TX, however as additional
mixing occurs with approach of a prefrontal trough, this fog and
some of the stratus may mix out. A line of tstms expected to begin
firing up quickly along the trough as it approaches ktyr terminal
from the west by around 07-0730z. These storms may then begin to
weaken as they approach the ktxk and kshv terminals. South winds
increasing to 10 to 20 kts with higher gusts and then shift to sw
and finally west as skies becmg vfr skc durg mrng. Vfr skc will
then continue thru end of 15/06z fcst expiration with winds becmg
nw around 5 kts by 15/00z./07/.
PREV DISCUSSION... /issued 957 PM CDT Wed Mar 13 2019/
UPDATE...
Have made svrl changes on eve update. Winds have dropped off
dramatically in wake of trough that is just exiting eastern
portions of the area. Have dropped LWA that was in effect areawide
until 1 am. This same trough will carry most convection to the
east and ne of area after midnight. Stg southerly flow just south
of cwa carrying low clouds quickly nwd into region. Areas of dense
fog also developing around east TX lakes but as additional low
clouds move into area, expect less in way of fog after midnight.
A prefrontal trough movg into the area from the west just after
midight with a narrow line of convection beginning to quickly
develop as it merges into higher dewpoint, still in lower to
middle 60s across much of LA. For this reason, storms may become
sfc based with stg shear still in place and this scenario will
need to be closely watched although no svr wording in current fcst
as of yet. Have lowered overnight lows per current trends as some
temps dipped to slightly below fcst. However, as this trough
approaches, expect temps to remain steady or possible slowly rise.
As svrl changes unfolding durg the course of the overnight, update
will be sent at 1 am to change wording in wx, fog, and winds.
Unless stg storms begin to develop along trough in which case the
next update will be sent before that time./07/.
PREV DISCUSSION... /issued 658 PM CDT Wed Mar 13 2019/
AVIATION...
Broadening band of convection very slowly shifting east across
the region and will continue across keld and kmlu until near
14/06z. Sfc winds outside of convection mainly from the south
with highly vrbl wind speeds although non convective wind gusts
of 25 kts possible, and stgr cells could produce wind gusts over
40 kts. Low mvfr cigs may occur in wake of convection in southerly
flow and where clouds diminish and winds decrease for brief
periods of time, fog development also possible in eve hours.
In addition, an additional prefrontal trough may ignite a narrow
line of convection near the TX/LA state line around 14/09z. After
this trough moves thru, vfr skc finally spreading east across
the area as sw winds becmg west at 10 to 20 kts, with higher gusts
possible, especially across nw sections of cwa including ktxk
terminal./07/.
PREV DISCUSSION... /issued 436 PM CDT Wed Mar 13 2019/
SHORT TERM.../Tonight through Thursday night/
The aforementioned upper trough has ejected out into the
Texas/Oklahoma panhandle region and western Kansas. The associated
sfc low also continues to strengthen over the same region,
bringing blizzard conditions to the front range of the Rockies. A
QLCS has developed along the trailing Pacific front, which has slowly
moved across the region today. As of this moment, there has been
no reports of severe wx across the region, but winds 40-45 mph
have been observed across East TX/SW Arkansas/NW Louisiana. Movement
of this system has slowed considerably as it tracks aross
southern Arkansas and North and Central Louisiana this afternoon.
Due to this, a slight potential for severe weather remains along
the QLCS this evening, as shear profiles and marginal instability
could provide damaging winds in possible bowing segments along the
line. Still expecting the strongest convection to exit the region
by late evening tonight. A Flash Flood threat still remains due
to the slow movement of the line and the adequate deep layer
moisture associated with this system. Also, decided to leave a
Lake Wind Advisory in place until 1 am tonight, as southerly
winds 15-20 mph, will continue across the region in several
areas.
The cold front will likely stall or washout across portions of
northeast and central Louisiana this evening, which will keep scattered
showers and a few thunderstorms in the forecast mainly southeast
of a line from Lufkin TX, to Shreveport, to Magnolia AR. Another
stronger cold front will arrive from the northwest early Thursday
morning. Short-range models suggest another line of convection
will develop along this front as it rapidly pushes through the
region early Thursday morning. The front and associated
precipitation should clear the region by lunch time tomorrow, and
northwest winds will bring in much drier and cooler conditions.
Overnight lows Thursday night/Friday morning will bottom out in
the upper 30s north of Interstate 30, and in the low to mid 40s
across the remainder of the region. /20
LONG TERM...LONG TERM.../Friday morning through Wednesday morning/
The beginning of the period will start off with the upper trough
moving out and surface high pressure building in from the west. As
the weekend progresses the surface high will move east from the
Texas Panhandle and center over the ArkLaTex region. The surface
high shifts east as we reach the end of the period. Our area will
remain under zonal flow throughout the forecast period.
Temperatures will average slightly below normal through the
beginning of next week with no chance of precipitation. Then,
temperatures will warm to near normal late in the forecast
period. /35/
&&
.PRELIMINARY POINT TEMPS/POPS...
SHV 73 44 60 39 / 20 0 0 0
MLU 78 46 62 40 / 40 0 0 0
DEQ 68 38 58 34 / 10 0 0 0
TXK 70 39 58 35 / 10 0 0 0
ELD 74 42 60 36 / 30 0 0 0
TYR 70 41 58 37 / 10 0 0 0
GGG 72 42 60 37 / 10 0 0 0
LFK 75 46 62 41 / 10 0 0 0
&&
.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Lake Wind Advisory from 10 AM this morning to 5 PM CDT this
afternoon for ARZ050-051-059>061-070-071.
LA...Lake Wind Advisory from 10 AM this morning to 5 PM CDT this
afternoon for LAZ001-002.
OK...Lake Wind Advisory from 10 AM this morning to 5 PM CDT this
afternoon for OKZ077.
TX...Lake Wind Advisory from 10 AM this morning to 5 PM CDT this
afternoon for TXZ096-097-108>112-124>126-136>138-149>151.
&&Hazardous Weather Outlook National Weather Service Shreveport LA 1049 PM CDT Wed Mar 13 2019 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-141200- 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- 1049 PM CDT Wed Mar 13 2019 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Tonight... Additional strong to severe thunderstorms will be possible late tonight through the predawn hours across portions of Northeast Texas, Southeast Oklahoma, Southwest Arkansas and extreme Northwest Louisiana. These thunderstorms will form along and ahead of a strong cold front. Large hail and strong wind gusts will be the primary threats, but an isolated tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... A few thunderstorms will be possible early Thursday until a stronger cold front moves across the area ushering considerably drier and colder air into the region. The stronger storms could produce brief heavy rainfall. However, no severe weather is anticipated at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be necessary for Southeast Oklahoma, Southwest Arkansas, Northeast Texas and extreme Northwest Louisiana late tonight through the predawn hours Thursday morning. 13
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
310 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0250 AM TSTM WND DMG 7 SSW ORE CITY 32.71N 94.75W
03/14/2019 UPSHUR TX AMATEUR RADIO
POWER LINES DOWN IN DIANA TX AREA.
&&
25PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
311 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 AM TSTM WND DMG GILMER 32.73N 94.94W
03/14/2019 UPSHUR TX AMATEUR RADIO
WIDE SPREAD POWER OUTAGE IN UPSHUR COUNTY AS
WELL AS IN THE CITY OF GILMER.
&&
25PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
321 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0314 AM TSTM WND GST 1 S LAKEPORT 32.38N 94.71W
03/14/2019 M62 MPH GREGG TX ASOS
LONGVIEW EAST TEXAS REGIONAL AIRPORT.
&&
CNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
324 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0320 AM HAIL 4 N LAKEPORT 32.45N 94.70W
03/14/2019 E0.70 INCH GREGG TX FIRE DEPT/RESCUE
HEAVY DIME-SIZE HAIL REPORTED ON I-20 AT THE
HARRISON/GREGG COUNTY LINE.
&&
CNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
351 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0335 AM TSTM WND GST MARSHALL 32.54N 94.35W
03/14/2019 E65 MPH HARRISON TX PUBLIC
WINDS ESTIMATED AT 65 MPH AND SMALL HAIL
REPORTED HWY 43 NEAR ROSBOROUGH SPRINGS RD.
&&
25PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
355 AM CDT THU MAR 14 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0240 AM HAIL TYLER 32.33N 95.30W
03/14/2019 E0.75 INCH SMITH TX AMATEUR RADIO
PENNY SIZE HAIL REPORTED 3 MILES ESE TYLER.
&&
25The Shreveport radar (KSHV), 65 km away, was scanning. The volume nearest the first event began at 09:00 UTC.
3 thunderstorm wind. Local standard time, as filed.
A tree was downed on Highway 29 near the Arkansas/Louisiana state line.
A tree was blown down on Highway 160 east of Bradley.
Numerous trees were snapped and uprooted east of Magnolia. Numerous power lines were downed as well.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2019Every state in 2019This day in weather historyWarnings in Arkansas, March 2019
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 2026-09-24. Each event’s entry at NCEI: 806160, 806161, 806162.