An inverted trough moved into the region and interacted with an upper level low. The first day of heavy rain in Southeast Texas produced 4 to 8 inches and caused isolated flooding.
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 LCH wrote it up.
An inverted trough moved into the region and interacted with an upper level low. The first day of heavy rain in Southeast Texas produced 4 to 8 inches and caused isolated flooding. A second round of rain produced several more inches and caused more flooding in Orange and Jefferson 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 Lake Charles, LA wrote its last area forecast discussion before the first event at Jun 18, 3:14 PM CST, 2 hours 27 minutes earlier.
Area Forecast Discussion
National Weather Service Lake Charles LA
414 PM CDT Mon Jun 18 2018
.DISCUSSION...Rain totals across the area have been somewhat
limited today with generally light stratiform rains prevailing.
Exception to that for this afternoon has been the development of
training showers moving over southeast Texas and heavily focused
on Jefferson county where a flash flood warning is in effect. Slow
westward advancing tropical wave approaching or over the Texas
coast will keep the faucet on for the next few days, especially
over the western portion of the forecast area.
Limited changes to forecast. Aforementioned feature will maintain
a steady stream of deep tropical moisture flowing into the
region. Deepest moisture progged to hold along and to the west of
the Sabine river where a potential will remain through Wednesday
for flooding rains. WPC maintaining a slight risk for our lower
southeast Texas counties. Drier weather pattern and heat returning
area-wide for the latter half of the week.
&&
.MARINE...A weak tropical wave will continue to move across the
western Gulf of Mexico and into Texas through tonight. This
system will interact with a surface high building in from the
western Atlantic and tighten the pressure gradient over the
northwest Gulf. The result will be strong onshore flow and rough
seas with small craft conditions into this evening. Tides will
also run about a foot above astronomical levels through tonight.
The tropical wave will also bring an increase in moisture with
numerous showers and storms through mid-week.
&&
.PRELIMINARY POINT TEMPS/POPS...
AEX 72 86 72 88 / 30 50 20 50
LCH 74 85 76 88 / 70 70 40 50
LFT 74 88 75 90 / 30 60 20 40
BPT 76 84 77 87 / 80 80 60 60
&&
.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...Small Craft Advisory until 6 AM CDT Tuesday for GMZ450-452-455-
470-472-475.
Small Craft Exercise Caution until 4 PM CDT this afternoon for
GMZ432-435.
&&
PUBLIC...23Hazardous Weather Outlook National Weather Service Lake Charles LA 448 PM CDT Mon Jun 18 2018 LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262- 192200- Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry- Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin- Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron- East Cameron-Tyler-Hardin-Jefferson-Orange-Northern Jasper- Northern Newton-Southern Jasper-Southern Newton- 448 PM CDT Mon Jun 18 2018 This Hazardous Weather Outlook is for portions of central Louisiana, south central Louisiana, southwest Louisiana, west central Louisiana, and southeast Texas. .DAY ONE...Tonight Showers and a few thunderstorms associated with an area of disturbed weather over the western Gulf of Mexico will continue to develop and spread inland into tonight. Some locally heavy rainfall will be possible, especially south of the I-10 corridor in southwest Louisiana and southeast Texas. Rainfall rates of 1 to 2 inches per hour may lead to some minor street flooding in poor drainage urban areas. Wind gusts with the showers could approach 35 mph. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Tropical-like moisture will continue over the region, especially coastal southwest Louisiana and southeast Texas, leading to high rain chances and the possibility of locally heavy rainfall again Tuesday. Additional rainfall across lower southwest Louisiana and southeast Texas will be 1 to 2 inches, with locally higher amounts. The remainder of the forecast area will see rainfall amounts less than 1 inch. Minor street flooding will be possible where the heavy rainfall amounts occur. Wind gusts to 30 mph and occasional cloud to ground lightning will also be possible with the storms. Rain chances will gradually decrease toward the middle and latter part of the week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. GMZ430-432-435-450-452-455-470-472-475-192200- Sabine Lake-Calcasieu Lake-Vermilion Bay- Coastal waters from Cameron LA to High Island TX out 20 NM- Coastal waters from Intracoastal City to Cameron LA out 20 NM- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- Waters from Cameron LA to High Island TX from 20 to 60 NM- Waters from Intracoastal City to Cameron LA from 20 to 60 NM- Waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 448 PM CDT Mon Jun 18 2018 This Hazardous Weather Outlook is for portions of Gulf of Mexico. .DAY ONE...Tonight The interaction between a tropical wave over the western Gulf of Mexico and high pressure over the southeast US will keep an elevated onshore flow and high seas in place. Some wind gusts in the numerous showers could be greater than gale force. Tides along the coast will be around 1 foot above the astronomical predicted levels. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Conditions will begin to improve on Tuesday as the tropical wave moves further into the Texas coast, lessening the pressure gradient. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The Lake Charles radar (KLCH), 84 km away, was scanning. The volume nearest the first event began at 23:40 UTC.
3 flash flood. Local standard time, as filed.
Underpasses flooded along MLK Blvd with at least one car stalled during the heavy rain event where near 8 inches fell.
Images posted to social media indicated water entered several structures in Bridge City and many streets were flooded south sections of Orange County.
Numerous streets were flooded in Port Arthur, Groves, and Central Gardens with several cars reported flooded.
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, June 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: 763786, 763787, 763788.