Scattered showers and thunderstorms developing during the afternoon on May 26th, near a weak surface boundary from earlier showers and thunderstorms that formed earlier in the day. Strong daytime heating and ample low level moisture interacted with this surface boundary, which resulted in an isolated severe thunderstorm developing over Eastern Angelina County, Texas, and downed trees and power…
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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.
Scattered showers and thunderstorms developing during the afternoon on May 26th, near a weak surface boundary from earlier showers and thunderstorms that formed earlier in the day. Strong daytime heating and ample low level moisture interacted with this surface boundary, which resulted in an isolated severe thunderstorm developing over Eastern Angelina County, Texas, and downed trees and power lines east of Zavalla.
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 May 26, 2:20 PM CST, 2 hours 55 minutes earlier.
Area Forecast Discussion National Weather Service Shreveport LA 320 PM CDT Sat May 26 2018 .SHORT TERM.../Tonight through Sunday Night/ Isolated showers and thunderstorms initially developed across portions of east TX and deep east TX earlier this morning, courtesy of daytime destabilization /above normal warmth/, ensuing low level moisture and a weak lingering surface boundary. That activity has since significantly waned, but isolated to scattered showers and thunderstorms have developed across portions central and north central LA late this afternoon, however this activity will be more diurnally-driven. Similar to what has been occurring for the last several days, some of these storms have become strong /as a few Significant Weather Advisories have been issued/ with gusty winds, small hail and brief moderate rainfall being the main threats /can not rule a rogue severe storm or two/. Tonight, the loss of daytime heating will lead to a general waning/dissipating trend, though lingering showers will likely persist particularly across eastern-half of the CWA due to a few reasons: 1. UA ridging across Mexico will continue to expand northeastward to across the western-half of the CWA and thus increasing subsidence will promote mitigating shower/storm development 2. Subtropical Storm Alberto is still poised to make landfall sometime on Monday around the MS/AL Gulf coasts. Although the tropical disturbance is not poised to move across the Four-State Region, wrap around moisture along its moist western fringe will still keep the eastern-half of the CWA within a relatively unstable environment. As such, showers and thunderstorms will prevail across the said areas tomorrow, with slightly better coverage during the afternoon hours as daytime destabilization commences. Once again, a few strong storms can not be ruled out. Mild nights have become the norm and tonight should be no different /upper 60s to lower 70s/ followed by continued above normal warmth for tomorrow afternoon /lower 90s/. .LONG TERM.../Monday through Saturday/ As we move into next work week, the upper ridge axis will be firmly anchored over the Big Bend region of TX newd through central TX as Alberto prepares to make landfall somewhere along the FL/AL coast. Aside from some very isold diurnal tstms during the early part of the work week, it looks like Alberto is going to leave us high and dry. Reinforced subsidence on the back side of the TC will likely keep rain chances out for us, aside from a few of our far ern counties/parishes potentially being grazed by an outer rainband. Remnants of Alberto will be picked up/forced newd by an upper level trof moving across the Central/High Plains by midweek, allowing the upper ridge to reinforce itself across TX through the latter half of the week. This will result in a sharp uptick in aftn temperatures across the region. Latest blends top portions of our region out in the mid and upper 90s from Wednesday onward through the end of the pd. With soils/vegetation drying out, these temps may in reality end up even warmer than the blends suggest, and heat index readings will no doubt exceed 100 degrees. /12/ && .PRELIMINARY POINT TEMPS/POPS... SHV 92 69 93 69 / 40 20 20 10 MLU 90 70 90 70 / 60 30 40 10 DEQ 92 67 94 68 / 20 10 10 0 TXK 91 69 92 69 / 30 20 10 0 ELD 91 68 91 69 / 50 30 30 10 TYR 92 71 94 71 / 30 0 10 0 GGG 92 71 93 70 / 30 20 20 0 LFK 92 71 94 71 / 30 20 20 0 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && 29/12
Hazardous Weather Outlook National Weather Service Shreveport LA 1250 PM CDT Sat May 26 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>167-271800- 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- 1250 PM CDT Sat May 26 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... Isolated to scattered thunderstorms will be possible today and into tonight across the entire Four State Region. This activity should slowly decrease through the evening and nighttime hours. Brief heavy downpours, gusty winds, and frequent cloud to ground lightning will be the primary threats. While an isolated storm could become severe, widespread severe thunderstorms are not expected. .DAYS TWO THROUGH SEVEN...Sunday through Friday... Isolated to scattered thunderstorms will be possible across mainly north central Louisiana through Tuesday. The greatest thunderstorm activity is expected each afternoon during peak daytime heating, and any storms that develop will gradually dissipate during the evening. Brief heavy downpours, gusty winds, and frequent cloud to ground lightning will be possible, but widespread severe weather is not expected. Very hot weather with near record temperatures will develop during the latter half of the upcoming work week, with heat indices breaking into the triple digits. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters will not be needed through tonight. 12
Special Weather Statement
National Weather Service Shreveport LA
336 PM CDT SAT MAY 26 2018
LAZ020>022-262115-
Caldwell LA-La Salle LA-Grant LA-
336 PM CDT SAT MAY 26 2018
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL GRANT...SOUTHEASTERN
CALDWELL AND CENTRAL LA SALLE PARISHES UNTIL 415 PM CDT...
At 336 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Liddieville to near Rosefield to near
Midway to 14 miles north of Ball. Movement was southeast at 15 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Jena, Midway, Nebo, Fishville and Rogers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3209 9187 3209 9190 3208 9190 3209 9191
3207 9193 3206 9191 3201 9189 3193 9190
3193 9201 3155 9201 3147 9234 3164 9248
3171 9225 3184 9207 3212 9193 3212 9187
TIME...MOT...LOC 2036Z 303DEG 11KT 3211 9187 3184 9201 3168 9220 3163
9242
12Special Weather Statement
National Weather Service Shreveport LA
401 PM CDT SAT MAY 26 2018
LAZ020-022-262145-
La Salle LA-Grant LA-
401 PM CDT SAT MAY 26 2018
...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL GRANT AND SOUTHERN
LA SALLE PARISHES UNTIL 445 PM CDT...
At 401 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles south of Midway, or 21 miles northeast of Pineville, moving
southeast at 10 mph.
Half inch hail and wind gusts up to 50 mph will be possible with this
storm.
Locations impacted include...
Jena, Midway, Nebo, Rogers and Catahoula Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 3134 9204 3132 9208 3134 9209 3135 9207
3136 9208 3138 9212 3141 9215 3143 9216
3145 9216 3146 9217 3147 9216 3148 9221
3146 9228 3158 9236 3177 9201 3133 9201
TIME...MOT...LOC 2101Z 320DEG 9KT 3157 9220
12Special Weather Statement National Weather Service Shreveport LA 441 PM CDT SAT MAY 26 2018 TXZ166-167-262230- Sabine TX-San Augustine TX- 441 PM CDT SAT MAY 26 2018 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL SAN AUGUSTINE AND WEST CENTRAL SABINE COUNTIES UNTIL 530 PM CDT... At 440 PM CDT, Doppler radar was tracking a strong thunderstorm near Macune, or 7 miles south of San Augustine, moving south at 10 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Macune, Bronson and Chinaquapin. 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. 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. && LAT...LON 3148 9422 3152 9407 3131 9399 3127 9417 TIME...MOT...LOC 2140Z 342DEG 7KT 3145 9413 19
Special Weather Statement
National Weather Service Shreveport LA
522 PM CDT SAT MAY 26 2018
LAZ014-262315-
Ouachita LA-
522 PM CDT SAT MAY 26 2018
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OUACHITA PARISH
UNTIL 615 PM CDT...
At 522 PM CDT, Doppler radar was tracking a strong thunderstorm near
Sterlington, or 7 miles southwest of Bastrop, moving south at 10 mph.
Nickel size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Monroe, Swartz, Richwood, Sterlington, Fairbanks, Perryville,
Guthrie, Deshard and Millhaven.
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.
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.
&&
LAT...LON 3248 9194 3245 9210 3268 9212 3269 9209
3272 9207 3269 9205 3270 9204 3271 9204
3270 9203 3271 9197 3268 9197 3266 9194
3267 9192 3266 9191 3260 9193 3251 9190
TIME...MOT...LOC 2222Z 347DEG 9KT 3269 9201
19Special Weather Statement
National Weather Service Shreveport LA
553 PM CDT SAT MAY 26 2018
TXZ165-166-262330-
Angelina TX-San Augustine TX-
553 PM CDT SAT MAY 26 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN ANGELINA AND
SOUTHWESTERN SAN AUGUSTINE COUNTIES UNTIL 630 PM CDT...
At 553 PM CDT, Doppler radar was tracking a strong thunderstorm 11
miles south of Macune, or 15 miles north of Ebenezer, moving south at
10 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Broaddus.
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.
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.
&&
LAT...LON 3124 9434 3122 9433 3123 9432 3124 9433
3125 9433 3127 9434 3130 9431 3132 9432
3134 9431 3137 9433 3137 9432 3134 9418
3111 9409 3105 9437
TIME...MOT...LOC 2253Z 340DEG 10KT 3126 9419
19Special Weather Statement National Weather Service Shreveport LA 605 PM CDT SAT MAY 26 2018 TXZ153-262345- Shelby TX- 605 PM CDT SAT MAY 26 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN SHELBY COUNTY UNTIL 645 PM CDT... At 605 PM CDT, Doppler radar was tracking a strong thunderstorm over Shelbyville, or 7 miles east of Center, moving south at 10 mph. Nickel size hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Shelbyville, Patroon, Hurstown and Jordans Store. 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. 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. && LAT...LON 3184 9413 3187 9401 3166 9390 3162 9409 TIME...MOT...LOC 2305Z 344DEG 9KT 3178 9405 19
The Ft Polk radar (KPOE), 123 km away, was scanning. The volume nearest the first event began at 23:13 UTC.
1 thunderstorm wind. Local standard time, as filed.
Trees and power lines were blown down along Mollywood Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, May 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 2026-09-24. Each event’s entry at NCEI: 747041.