An upper level trough amplified during the daytime hours of October 31st across much of the Plains and Southern Rockies, which reinforced a strong cold front southeast into the Southern Plains. Ahead of this front and accompanying trough, above normal temperatures ranging from the mid 70s to lower 80s coupled with increased low level moisture resulted in a moderately unstable air mass during the…
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.
An upper level trough amplified during the daytime hours of October 31st across much of the Plains and Southern Rockies, which reinforced a strong cold front southeast into the Southern Plains. Ahead of this front and accompanying trough, above normal temperatures ranging from the mid 70s to lower 80s coupled with increased low level moisture resulted in a moderately unstable air mass during the afternoon. The pressure gradient tightened across the warm sector which expanded across much of the Ark-La-Tex, well ahead of the front as surface low pressure intensified along the frontal surface over North Texas. This enhanced wind shear as the front advanced east across much of Texas and Southeast Oklahoma, with large scale forcing ahead of the trough contributing to scattered shower and thunderstorm development during the afternoon over Southeast Oklahoma, Southwest Arkansas, and Central Texas. Some of these storms became severe of portions of Southwest Arkansas and extreme Northeast Texas, with a tree falling onto a power line in De Queen, resulting in power outages in the city.
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 Oct 31, 1:05 PM CST, 2 hours 5 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Shreveport LA 110 PM CDT Wed Oct 31 2018 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-011815- 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- 110 PM CDT Wed Oct 31 2018 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...This Afternoon and Tonight... Strong to severe thunderstorms will spread southeastward across the area today and tonight, and damaging winds, large hail, and isolated tornadoes will be possible with any of the storms, especially for areas along and south of I 20. The severe weather threat should gradually diminish from west to east late tonight. In addition to the severe threat, locally heavy rainfall of one to three inches with isolated higher amounts will be possible. This may lead to isolated flash flooding of low lying and poor drainage areas, and will act to exacerbate ongoing high water on area rivers and lakes. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Isolated thunderstorms will be possible Sunday, as another cold front moves across the region. Yet another storm system will bring thunderstorms Monday night into Tuesday. However, no organized hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters will be needed this afternoon and tonight. 20
Special Weather Statement
National Weather Service Shreveport LA
148 PM CDT WED OCT 31 2018
ARZ050-OKZ077-311930-
Sevier AR-McCurtain OK-
148 PM CDT WED OCT 31 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SEVIER AND EASTERN
MCCURTAIN COUNTIES UNTIL 230 PM CDT...
At 148 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles north of Broken Bow, or 20 miles northwest of De Queen, moving
northeast at 35 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
De Queen, Broken Bow, Gillham, Haworth, Eagletown, Plunketville,
Cerrogordo, Hochatown, Goodwater, West Line, West Otis and Shinewell.
LAT...LON 3419 9447 3419 9423 3408 9412 3394 9440
3394 9442 3393 9443 3394 9448 3390 9448
3380 9469 3417 9489 3445 9447
TIME...MOT...LOC 1848Z 242DEG 31KT 3416 9467
35Special Weather Statement
National Weather Service Shreveport LA
231 PM CDT WED OCT 31 2018
ARZ050-059-OKZ077-TXZ096-312015-
Sevier AR-Little River AR-McCurtain OK-Red River TX-
231 PM CDT WED OCT 31 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LITTLE RIVER...
NORTHWESTERN SEVIER...SOUTHEASTERN MCCURTAIN AND NORTHEASTERN RED
RIVER COUNTIES UNTIL 315 PM CDT...
At 231 PM CDT, Doppler radar was tracking a strong thunderstorm 12
miles northeast of Clarksville, moving northeast at 65 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
De Queen, Horatio, Idabel, Broken Bow, Gillham, Haworth, Garvin,
Eagletown, Moon, Cerrogordo, Hochatown, Goodlake, Goodwater,
Shinewell, Glover, America, West Line, Oak Hill, Golden and Bokhoma.
LAT...LON 3433 9447 3419 9447 3419 9420 3413 9409
3369 9466 3368 9469 3370 9474 3363 9475
3359 9480 3370 9510 3446 9470
TIME...MOT...LOC 1931Z 208DEG 56KT 3374 9490
35Special Weather Statement
National Weather Service Shreveport LA
322 PM CDT WED OCT 31 2018
ARZ050-051-059-OKZ077-312115-
Howard AR-Sevier AR-Little River AR-McCurtain OK-
322 PM CDT WED OCT 31 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LITTLE RIVER...
SEVIER...CENTRAL HOWARD AND SOUTHEASTERN MCCURTAIN COUNTIES UNTIL 415
PM CDT...
At 321 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles west of Arkinda, or 14 miles west of Foreman, moving northeast
at 35 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
De Queen, Horatio, Lockesburg, Winthrop, Gillham, Arkinda, Oak Grove,
Haworth, Bokhoma, Silver Ridge, Moon, Cerrogordo, Geneva, Central,
Goodwater, Shinewell, Tom, America, Provo and West Line.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 1000 PM CDT for southwestern
Arkansas...and southeastern Oklahoma.
LAT...LON 3397 9391 3369 9459 3378 9477 3419 9430
3419 9425
TIME...MOT...LOC 2021Z 233DEG 29KT 3376 9464
35The Western Arkansas radar (KSRX), 139 km away, was scanning. The volume nearest the first event began at 21:12 UTC.
1 thunderstorm wind. Local standard time, as filed.
A large tree fell onto a power line in De Queen, resulting in a power outage to several homes in the city.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2018Every state in 2018This day in weather historyWarnings in Arkansas, October 2018
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 2026-10-01. Each event’s entry at NCEI: 785258.