Alert archive / Louisiana / Flash Flood Warnings in 2026

Flash Flood Warning 39, NWS Lake Charles, LA

June 18, 2026Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Jun 18, 2026, 5:30 AM CDT for Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 5 hr. 11 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 18, 2026, 5:30 AM CDT (10:30 UTC)
Expired
Jun 18, 2026, 10:00 AM CDT
In force
5 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 104 km from the middle of the area, began a volume at 10:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 18, 6:35 AM CDTFLASH FLOODPlaucheville, LADELAYED REPORT. Video of impassible roadways due to high water.
Jun 18, 6:39 AM CDTFLASH FLOOD2 Wsw Dupont, LADELAYED REPORT. Roadways impassible near Zanktown ln due to highwater.
Jun 18, 6:43 AM CDTFLASH FLOODPlaucheville, LAVideo of streets flooded.
Jun 18, 7:43 AM CDTFLASH FLOOD1 S Cottonport, LADELAYED REPORT. Report Choupique Ln in Cottonport is flooded.
Jun 18, 7:49 AM CDTFLASH FLOODCottonport, LAReports of Choupique Ln flooded.
Jun 18, 7:50 AM CDTFLASH FLOODPlaucheville, LAHWY 107 flooded.
Jun 18, 8:04 AM CDTFLASH FLOOD2 S Plaucheville, LAflooding on hwys & streets in the DuPont Plaucheville Moreauville & Simmesport area. Impassable with a car.
Jun 18, 8:09 AM CDTFLASH FLOOD5 W Big Cane, LACorrects previous flash flood report from 7 W Big Cane. Floodwaters covering WPA Rd at intersection of US 71 and Peter Smith Rd near Morrow.
Jun 18, 8:09 AM CDTFLASH FLOOD7 W Big Cane, LAFloodwaters covering WPA Rd near Dubuisson.
Jun 18, 8:10 AM CDTFLASH FLOOD2 Wsw Big Cane, LAclosing Fisher Road in Morrow area and Lebeau Church Road in Lebeau area. Impassable.
Jun 18, 8:53 AM CDTFLASH FLOODCottonport, LAReport of a water rescue in Cottonport.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 12 storm reports to this flash flood warning; the first came 65 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 10.5 hours before the alert went out and 145 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lake Charles Mun, LA at 00:00Z on 2026-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 481 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2026-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
481 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
869 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

584 
WGUS54 KLCH 181030
FFWLCH
LAC009-039-097-181330-
/O.NEW.KLCH.FF.W.0039.260618T1030Z-260618T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
530 AM CDT Thu Jun 18 2026

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Southern Avoyelles Parish in central Louisiana...
  East Central Evangeline Parish in central Louisiana...
  Northeastern St. Landry Parish in central Louisiana...

* Until 830 AM CDT.

* At 530 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Additional rainfall amounts of 2 to 4 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Ville Platte, Bunkie, Simmesport, Morrow, Bayou Current, 
  Cottonport, Evergreen, Plaucheville, Big Cane, Goudeau, 
  Whiteville, Lebeau, Dupont, Grand Prairie, Indian Lake, Chicot 
  State Park and St. Landry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3099 9208 3099 9178 3098 9181 3093 9180
      3087 9180 3086 9182 3083 9180 3082 9181
      3081 9181 3079 9178 3078 9177 3074 9192
      3062 9221 3065 9231 3076 9233 3094 9219

FLASH FLOOD...RADAR INDICATED

$$

Brazzell
2 follow-up statements
698 
WGUS54 KLCH 181129
FFWLCH
LAC009-039-097-181500-
/O.EXT.KLCH.FF.W.0039.000000T0000Z-260618T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
629 AM CDT Thu Jun 18 2026

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Southern Avoyelles Parish in central Louisiana...
  East Central Evangeline Parish in central Louisiana...
  Northeastern St. Landry Parish in central Louisiana...

* Until 1000 AM CDT.

* At 629 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 5 inches of rain 
  have fallen. Additional rainfall amounts of 2 to 4 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Ville Platte, Bunkie, Simmesport, Morrow, Bayou Current, 
  Cottonport, Evergreen, Plaucheville, Big Cane, Goudeau, 
  Whiteville, Lebeau, Dupont, Grand Prairie, Indian Lake, Chicot 
  State Park and St. Landry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3099 9208 3099 9178 3098 9181 3093 9180
      3087 9180 3086 9182 3083 9180 3082 9181
      3081 9181 3079 9178 3078 9177 3074 9192
      3062 9221 3065 9231 3076 9233 3094 9219

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Brazzell
453 
WGUS74 KLCH 181224
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
724 AM CDT Thu Jun 18 2026

LAC009-039-097-181500-
/O.CON.KLCH.FF.W.0039.000000T0000Z-260618T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Avoyelles LA-Evangeline LA-St. Landry LA-
724 AM CDT Thu Jun 18 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS 
MORNING FOR SOUTHERN AVOYELLES, EAST CENTRAL EVANGELINE AND 
NORTHEASTERN ST. LANDRY PARISHES...

At 724 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 4 and 8 inches of rain have 
fallen. Additional rainfall amounts of 2 to 4 inches are possible in 
the warned area. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Ville Platte, Bunkie, Simmesport, Morrow, Bayou Current, 
  Cottonport, Evergreen, Plaucheville, Big Cane, Goudeau, 
  Whiteville, Lebeau, Dupont, Grand Prairie, Indian Lake, Chicot 
  State Park and St. Landry.

Use extreme caution and stay at home unless absolutely necessary. 
Rainfall is tapering off from the southwest, however with this much 
rainfall it will take time to drain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3099 9208 3099 9178 3098 9181 3093 9180
      3087 9180 3086 9182 3083 9180 3082 9181
      3081 9181 3079 9178 3078 9177 3074 9192
      3062 9221 3065 9231 3076 9233 3094 9219

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Brazzell

What forecasters said that day

The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Jun 18, 12:09 AM CDT, 5 hours 21 minutes earlier. Its key messages:

  • Tropical Storm Warnings have been cancelled as Tropical Storm Arthur has dissipated.
  • A Flood Watch remains in effect for all of Southwest Louisiana through Thursday evening.
  • A Coastal Flood advisory is in effect until Thursday afternoon. Surges of up to 2 feet are expected.
Area forecast discussion, Jun 18, 12:09 AM CDT, 5 hours 21 minutes before
Area Forecast Discussion
National Weather Service Lake Charles LA
1209 AM CDT Thu Jun 18 2026

...New DISCUSSION, AVIATION, MARINE, FIRE WEATHER...

.KEY MESSAGES...

- Tropical Storm Warnings have been cancelled as Tropical Storm
  Arthur has dissipated.

- A Flood Watch remains in effect for all of Southwest Louisiana
  through Thursday evening.

- A Coastal Flood advisory is in effect until Thursday afternoon.
  Surges of up to 2 feet are expected.

&&

.DISCUSSION...
(Today through Wednesday)
Issued at 1206 AM CDT Thu Jun 18 2026

The remnants of post-Tropical Storm Arthur are now onshore near
Galveston and are not expected to re-enter the Gulf. While further
strengthening is not a concern, we are looking at another round
of heavy rain and gusty winds overnight and into Thursday morning.
Flash flooding remains a major concern, with an additional 2 to 6
inches of rain possible across Acadiana and southwest Louisiana
tonight. Along with the heavy rain, there is also an isolated
tornado threat as backing low-level flow will enhance 0-1 km
shear, with models showing elongated low-level hodographs.

Local impacts will start to diminish on Thursday morning, with the
coastal flood advisory being downgraded as surge levels reach
roughly one to two feet above MHHW. In addition, we will be paring
back the flood watch a little early, at least for parts of
southeast Texas and central Louisiana. As Arthur continues to move
further inland, subsidence will increase, leading to less cloud
cover and an increase in temperatures, with highs in the 90s. With
the remnants of Arthur still in east Texas, tropical moisture will
cause dew points to be near 80. This combination will spike the
apparent temperature well into the triple digits, and a heat
advisory will be in effect for southeast Texas. For the rest of
the week and heading into the weekend, we are looking at a more
typical summertime pattern with temperatures in the mid-90s and
high dew points. More heat advisories may be needed through the
weekend. Over the weekend, ridging will start to build over the
region, keeping rain chances below 20% for most of the area. The
break from the rain will be much appreciated, as QPF amounts from
Friday to next Wednesday are around 0.10 inches.

&&

.AVIATION...
(06Z TAFS)
Issued at 1206 AM CDT Thu Jun 18 2026

Heavy rain and thunderstorms are impacting LFT and ARA. Near
convection conditions will be IFR/LIFR with heavy rain and low
ceilings. Elsewhere conditions will be MVFR with low clouds. Winds
will be from the south-southeast around 10 to 15 knots.

&&

.MARINE...
Issued at 1206 AM CDT Thu Jun 18 2026

The remnants of post-Tropical Storm Arthur are now located inland
over Texas, and all Tropical Storm warnings have been cancelled.
Strong squalls will continue. Conditions offshore remain
dangerous, as sustained winds are between 15 and 25 knots with
wave heights up to 10 feet. Conditions will start to improve on
Thursday, with winds dropping below 20 knots Thursday night. Wave
heights will take a bit longer to subside, staying above 6 feet
well into Friday. Over the weekend and into the start of next
week, conditions will be calmer, with prevailing winds around 10
to 15 knots from the south and waves below 5 feet.

&&

.FIRE WEATHER...
Issued at 1206 AM CDT Thu Jun 18 2026

Multiple rounds of heavy rain will limit any fire weather concerns
for the next several days. MinRH values will remain above 50% for
the rest of the forecast period.

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Flood Watch through this evening for LAZ027>033-044-045-055-073-
     074-141>143-152>154-241>243-252>254.

     Wind Advisory until 8 PM CDT this evening for LAZ027>033-044-045-
     055-073-074-141>143-152>154-241>243-252>254.

     Coastal Flood Advisory until noon CDT today for LAZ073-074-241-
     252>254.

TX...Wind Advisory until 8 PM CDT this evening for TXZ180-201-259>262-
     515-516-615-616.

     Coastal Flood Advisory until noon CDT today for TXZ615-616.

     Heat Advisory from 10 AM this morning to 9 PM CDT this evening
     for TXZ180-201-259>262-515-516-615-616.

GM...Small Craft Advisory until 7 AM CDT Friday for GMZ430-432-435-
     436-450-452-455-470-472-475.

&&

PUBLIC/FIRE/MARINE...14
AVIATION...14

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 9:29 PM CDTSpecial Marine WarningLCH61 min
Jun 17, 10:04 PM CDTSpecial Marine WarningLCH56 min
Jun 17, 10:05 PM CDTSmall Craft AdvisoryLCH33 hr
Jun 17, 10:06 PM CDTCoastal Flood AdvisoryLCHCalcasieu, Cameron, Iberia, St. Mary, Vermilion14 hr
Jun 17, 11:01 PM CDTSpecial Marine WarningLCH59 min
Jun 17, 11:03 PM CDTSpecial Marine WarningLCH57 min
Jun 18, 12:01 AM CDTSpecial Marine WarningLCH59 min
Jun 18, 12:03 AM CDTSpecial Marine WarningLCH57 min
Jun 18, 12:05 AM CDTSpecial Marine WarningLCH55 min
Jun 18, 12:53 AM CDTSpecial Marine WarningLCH52 min
Jun 18, 12:55 AM CDTSpecial Marine WarningLCH65 min
Jun 18, 1:37 AM CDTAreal Flood WarningLCHEvangeline, Saint Landry24 hr
Jun 18, 2:17 AM CDTTornado WarningLCHSaint Martin, St. Mary15 min
Jun 18, 6:36 AM CDTFlash Flood WarningLCHAvoyelles3 hr
Jun 18, 7:30 AM CDTFlash Flood WarningLCHAvoyelles3 hr
Jun 18, 7:57 AM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Rapides2 hr
Jun 18, 8:59 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatLCHAvoyelles4 hr
Jun 18, 9:44 AM CDTFlash Flood Warning Considerable damage threatLCHAvoyelles, Evangeline, Rapides, Saint Landry3 hr
Jun 18, 9:53 AM CDTSevere Thunderstorm WarningLCHAvoyelles67 min
Jun 18, 9:57 AM CDTTornado WarningLCHAvoyelles18 min
Jun 18, 10:51 AM CDTAreal Flood WarningLCHSaint Landry6 hr
Jun 18, 10:54 AM CDTSevere Thunderstorm WarningLCHAvoyelles66 min
Jun 18, 11:29 AM CDTHeat AdvisoryLCHAcadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more32 hr
Jun 18, 11:31 AM CDTTornado WarningLCHAvoyelles29 min
Jun 18, 11:54 AM CDTSevere Thunderstorm WarningLCHAvoyelles66 min
Jun 18, 12:44 PM CDTFlash Flood Warning EmergencyCatastrophic damage threatLCHAvoyelles4 hr
Jun 18, 12:47 PM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Rapides, Saint Landry4 hr
Jun 18, 4:57 PM CDTAreal Flood WarningLCHAvoyelles47 hr

Nearby

Flash Flood Warnings in Louisiana, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.