A weak mid level trough extended from west to east across Southern and Southeast Oklahoma into Western and Central Arkansas during the daytime hours on September 23rd, south of a stationary front that shifted from Central Oklahoma into Northwest and Northcentral Arkansas. A very moist air mass was in place at the surface across extreme Southeast Oklahoma and Western Arkansas, as large scale…
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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 weak mid level trough extended from west to east across Southern and Southeast Oklahoma into Western and Central Arkansas during the daytime hours on September 23rd, south of a stationary front that shifted from Central Oklahoma into Northwest and Northcentral Arkansas. A very moist air mass was in place at the surface across extreme Southeast Oklahoma and Western Arkansas, as large scale forcing increased atop this mid level disturbance from mid morning through the afternoon. This resulted in the development of a cluster of showers and thunderstorms producing locally heavy rainfall, which moved over much of Southeast Oklahoma. These showers and thunderstorms continued to develop and move repeatedly over the same areas across Northern and Central McCurtain County, producing widespread rainfall amounts of 3-7+ inches. This fell atop already saturated grounds, where widespread amounts of 3-6+ inches had fallen on September 20th. This resulted in significant flash flooding across much of Northern and Central McCurtain County, with numerous roads flooded and closed, and at least two homes flooded. In all, 4 day storm total rainfall amounts of 6-10+ inches were recorded.
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 Sep 23, 3:30 AM CST, 2 hours 15 minutes earlier.
Area Forecast Discussion National Weather Service Shreveport LA 430 AM CDT Mon Sep 23 2019 .SHORT TERM.../Today through Tuesday Night/ Other than some low cloud development across portions of East Texas, things are quiet across the region. The aforementioned SE CONUS upper ridge centered across AL/GA will begin to retrograde westward into the Lower MS Valley and into the eastern sections of TX. The northern extent of the ridge will flatten some allowing an upper trough and associated cool front in the Plains to advanced SE into portions of Cntrl and Ern OK and Wrn/Cntrl AR today before becoming stationary. This ridge will put a halt to the southward progress of the front and accompanying trough. Weak disturbances will move along the trough today resulting in isolated to scattered convection in our northern zones, especially north of Interstate 30. Additional diurnal driven isolated convection will be possible farther S across the remainder of East TX/Wrn LA where good southerly flow will persist along the Wrn fringes of the upper ridge axis. Most of the convection will diminish by sunset with the loss of heating, but some isolated to sct convection may persist across the Nrn zones near the trough/frontal boundary. On Tuesday, the center of the upper ridge will drift southward and become confined to the northern Gulf of Mexico south of the MS/AL/FL coast. This will allow the trough/frontal boundary to push a little further south to near the Interstate 30 corridor before it washes out. However, it will provide the focus for isolated to scattered showers and thunderstorms across areas north of Interstate 20, with the best chances along and north of Interstate 30. Surface ridging should provide enough subsidence to keep the remainder of the region dry. Afternoon temperatures today will once again rise into the lower to mid 90s despite the isolated convection, except across areas along and north of Interstate 30 near the trough where clouds and rain will keep temperatures in the mid to upper 80s. Slightly cooler temperatures on Tuesday with rain and cloud cover extending further south into the region. However, temperatures in our southern zones will continue to rise into the 90s due to the influence of upper ridging. /20/ .LONG TERM.../Wednesday through Monday/ By Wed, whatever is left of our frontal boundary across portions of Ar will quickly retreat back to the north and east with weak ridging aloft noted across Central Tx to the northern Gulf Coast. Models are depicting weak upper forcing across our northern third on Wed into Thu with nearly zonal flow across the Southern Plains and there is a weak disturbance embedded in this flow which could help to enhance isolated to widely scattered convection. We undergo a pattern change aloft as we enter the end of the work week with a deep trough of low pressure across the Four Corners region of the country ejecting out into the Southern Plains by Friday/Friday Night. With ridging centered across the SE portion of the country, southwesterly flow aloft will commence ahead of the ejecting trough Saturday. This flow should help to tap Gulf moisture in the lower levels and this should help to ignite diurnally driven isolated convection Friday into Saturday but the key word is isolated. The ridge across the Southeast CONUS for Sat will expand westward into the Tenn Valley by Sunday and remain anchored there, expanding into the Ohio Valley by Monday as a longwave trough carves its way across the Pacific Northwest and the Intermountain West. We will be under the influence of the ridge axis emanating from the anchored ridge to our north and east which should keep anything other than isolated diurnally driven convection at bay. Continue to warm extended temperatures above MOS blends, especially by late week, into the weekend and early next week given the position of this upper ridge axis. 13 && .PREV DISCUSSION... /issued 1140 PM CDT Sun Sep 22 2019/ AVIATION... Mostly vfr skc across area with lgt south winds underneath swly flow aloft may allow for thin layer of mvfr clouds to develop again later tonight, but mostly scattering out by 23/15-16z. A frontal boundary will sag into areas near or just north of I-30 by 23/18z. Expect tstms in ktxk area, and possibly near keld by later in the aftn. This convection could continue beyond 24/00z. Meanwhile, scattered sea breeze convection may reach klfk durg aftn. However, this weaker sea breeze convection likely diminish prior to sunset./07/. && .PRELIMINARY POINT TEMPS/POPS... SHV 93 72 91 70 / 20 10 20 10 MLU 96 72 93 70 / 10 10 30 20 DEQ 88 70 86 69 / 40 40 50 20 TXK 90 71 88 69 / 30 30 40 20 ELD 92 70 90 68 / 20 30 40 20 TYR 93 72 91 69 / 20 10 20 0 GGG 93 71 91 69 / 20 10 20 0 LFK 91 71 90 69 / 20 10 10 0 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && 20/13
Hazardous Weather Outlook National Weather Service Shreveport LA 524 AM CDT Mon Sep 23 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>167-241200- 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- 524 AM CDT Mon Sep 23 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...Today and Tonight... Isolated to scattered showers and thunderstorms will be possible across most areas today. The greatest rain chances will be along and northwest of the Interstate 30 Corridor which includes Northeast Texas, Southeast Oklahoma and Southwest Arkansas. These higher rain chances will remain in the forecast overnight. Strong to severe thunderstorms are not expected through tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... Scattered to numerous showers and thunderstorms will once again be possible across the northern half of the Four State Region on Tuesday, mainly near and to the north of the Interstate 20 Corridor. These storms are not expected to be strong or severe on Tuesday. Otherwise, mainly isolated to widely scattered showers and thunderstorms will be possible across portions of the Four State Region through next Sunday. Otherwise, no hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters will not be needed. 13
The Western Arkansas radar (KSRX), 117 km away, was scanning. The volume nearest the first event began at 11:47 UTC.
3 flash flood, 2 heavy rain. Local standard time, as filed.
An eight hour storm total of 4.50 inches was recorded at the Oklahoma Mesonet station in the Mount Herman community. This was in addition of the 5.83 inches that was recorded on September 20th.
A seven hour storm total rainfall amount of 7.07 inches was recorded at the Broken Bow Mesonet station about 7 miles east of Broken Bow near the Eagletown community. This was in addition of the 3.07 inches that was recorded on September 20th.
Numerous roads were flooded and closed in and west of Highway 259 in Hochatown.
Tebo Jones Road southwest of Broken Bow was flooded and closed.
Highway 3 over the Glover River was flooded and closed. Two homes near the river were flooded. Numerous other roadways near the river were flooded and closed as well.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2019Every state in 2019This day in weather historyWarnings in Oklahoma, September 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: 846598, 846597, 846596, 846593, 846595.