Alert archive / Louisiana / Flash Flood Warnings in 2026

Flash Flood Warning 23, NWS Lake Charles, LA

June 15, 20264 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood warning at Jun 15, 2026, 5:11 AM CDT for 4 parishes in Louisiana. It was in force for 3 hr. 1 report 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 15, 2026, 5:11 AM CDT (10:11 UTC)
Expired
Jun 15, 2026, 8:15 AM CDT
In force
3 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

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

The radar

The Ft Polk radar (KPOE), 112 km from the middle of the area, began a volume at 10:15 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 15, 7:45 AM CDTFLASH FLOODMansura, LAReport of water over several roadways in and around Mansura.

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 one storm report to this flash flood warning; the first came 154 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, 10.2 hours before the alert went out and 148 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 2026-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1692 joules per kilogram.LCLEL10008507005003002001001 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 2026-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
1692 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

711 
WGUS54 KLCH 151011
FFWLCH
LAC009-039-079-097-151315-
/O.NEW.KLCH.FF.W.0023.260615T1011Z-260615T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
511 AM CDT Mon Jun 15 2026

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Southern Avoyelles Parish in central Louisiana...
  Evangeline Parish in central Louisiana...
  Southeastern Rapides Parish in central Louisiana...
  St. Landry Parish in central Louisiana...

* Until 815 AM CDT.

* At 511 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1.5 and 3 inches of 
  rain have fallen. The expected rainfall rate is 1.5 to 3 inches in 
  1 hour. 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...
  Opelousas, Ville Platte, Bunkie, Mamou, Simmesport, Krotz Springs, 
  Melville, Moreauville, Cheneyville, Turkey Creek, Palmetto, 
  Morrow, Bayou Current, Port Barre, Cottonport, Pine Prairie, 
  Mansura, Washington, Hessmer and Chataignier.

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 3109 9216 3108 9172 3108 9171 3104 9172
      3098 9181 3087 9180 3086 9182 3083 9180
      3081 9181 3078 9177 3070 9173 3067 9173
      3066 9175 3063 9174 3062 9175 3056 9176
      3052 9173 3051 9190 3051 9244 3091 9257

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5-3 INCHES IN 1 HOUR

$$

MC

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 15, 12:47 AM CDT, 4 hours 24 minutes earlier. Its key messages:

  • A flood watch is in effect for a large portion of the area through Wednesday morning.
  • A weak frontal boundary will combine with deep tropical moisture to increase precipitation chances through Tuesday. These storms will be capable of high rainfall rates that could pose a flood risk.
  • Another round of heavier rain will be possible during the second half of the week in association with low pressure moving northeast along the Texas and Louisiana coast.
  • High temperatures during the first half of the work week may be slightly below normal due to higher than normal rain chances and cloud cover.
Area forecast discussion, Jun 15, 12:47 AM CDT, 4 hours 24 minutes before
Area Forecast Discussion
National Weather Service Lake Charles LA
1247 AM CDT Mon Jun 15 2026

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

.KEY MESSAGES...

- A flood watch is in effect for a large portion of the area
  through Wednesday morning.

- A weak frontal boundary will combine with deep tropical moisture
  to increase precipitation chances through Tuesday. These storms
  will be capable of high rainfall rates that could pose a flood
  risk.

- Another round of heavier rain will be possible during the second
  half of the week in association with low pressure moving
  northeast along the Texas and Louisiana coast.

- High temperatures during the first half of the work week may be
  slightly below normal due to higher than normal rain chances
  and cloud cover.

&&

.DISCUSSION...
(Tonight through next Sunday)
Issued at 1151 PM CDT Sun Jun 14 2026

A weak frontal boundary is across central Texas and northern LA
this morning. A very soupy air mass is along and ahead of the
boundary with PWAT values near daily record highs along the Texas
coastal bend into much of LA.

The boundary will stall across the region through the next few
days while deep moisture remains in place. Multiple rounds of rain
can be anticipated through mid week. Thunderstorms that do
develop will be capable of producing very high rain rates while
moving slowly. A flood watch has been issued for rainfall totals
of 2 to 5 inches in the watch area with isolated locations
receiving between 6 and 10 inches. A few locations have already
received around 6 inches over the past 18ish hours, but
accumulations have been spotty. Rain will likely be more
widespread today and Tuesday.

A very small lull in convection may occur during mid week, however
additional heavy rain will be possible late week. A weak area of
low pressure is over northeast Mexico and will travel northeast
along the coast through Thursday. There is a slim chance that
the system attempts to organize somewhat before reaching SE TX or
SW LA IF it manages to move slightly offshore, but regardless of
development, a slug of deep tropical moisture will move across the
local area potentially interacting with the stalled and diffuse
frontal boundary. Rainfall totals will be highly dependent on the
evolution and path of this system. Strong onshore winds are
expected as the system passes and this may drive tides around 2
feet above normal.

This weekend another front may drift into the region keeping the
weather somewhat unsettled. No chance of real cooling though,
that is still months away.

&&

.AVIATION...
(06Z TAFS)
Issued at 1151 PM CDT Sun Jun 14 2026

Rain, thunderstorms, and low ceilings are anticipated during the
period. LIFR vis will be possible in any storm. Slow moving storms
may keep vis and ceilings reduced for multiple hours at a time.
However, winds will be light and generally south to southwest.

&&

.MARINE...
Issued at 1151 PM CDT Sun Jun 14 2026

A light onshore flow will remain in place through Tuesday, however
an area of low pressure will ride northeast along the Texas coast
through mid to late week. SCA conditions are forecast to occur
Wednesday into early Friday.

&&

.FIRE WEATHER...
Issued at 1151 PM CDT Sun Jun 14 2026

Widespread rain is expected this week. No fire weather concerns
are anticipated.

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Flood Watch from 7 AM CDT Monday through Wednesday morning for
     LAZ027>033-044-045-141>143-241>243.

TX...Flood Watch from 7 AM CDT Monday through Wednesday morning for
     TXZ180-201-259>262-515-516-615-616.

GM...None.
&&

PUBLIC/FIRE/MARINE...05
AVIATION...05

In the hours before

Local storm report, Jun 15, 1:29 AM CDT, 3 hours 42 minutes before
Preliminary Local Storm Report
National Weather Service Lake Charles LA
129 AM CDT Mon Jun 15 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0742 PM     Flash Flood      4 S Topsy               30.35N 93.13W
06/14/2026                   Calcasieu          LA   Mesonet

            Local mesonet site indicates Blackmon Bayou
            left its banks and inundated Deer Run Road.

&&
Special weather statement, Jun 15, 4:39 AM CDT, 32 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
439 AM CDT Mon Jun 15 2026

LAZ028-029-031>033-142-143-151015-
Avoyelles LA-Northern Acadia LA-St. Landry LA-Evangeline LA-Allen LA-
Rapides LA-Northern Jefferson Davis LA-
439 AM CDT Mon Jun 15 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN RAPIDES...
NORTHEASTERN JEFFERSON DAVIS...EVANGELINE...NORTHERN ACADIA...
AVOYELLES...ST. LANDRY AND EASTERN ALLEN PARISHES THROUGH 515 AM
CDT...

At 439 AM CDT, Doppler radar was tracking a strong thunderstorm over
Evergreen, or near Bunkie, moving east at 15 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Opelousas, Eunice, Oakdale, Ville Platte, Marksville, Church Point,
Bunkie, Mamou, Simmesport, Basile, Krotz Springs, Elton, Leonville,
Melville, Moreauville, Cheneyville, Turkey Creek, Palmetto,
Bordelonville, and Bayou Current.

This includes Interstate 49 between mile markers 9 and 67.

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.

&&

LAT...LON 3113 9178 3103 9174 3097 9181 3087 9180
      3085 9182 3084 9180 3081 9181 3078 9177
      3070 9173 3067 9173 3061 9176 3055 9175
      3040 9195 3041 9198 3038 9198 3040 9268
      3079 9273 3117 9234
TIME...MOT...LOC 0939Z 259DEG 15KT 3092 9212

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Calhoun

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:33 PM CDTFlash Flood WarningLCHCalcasieu3 hr
Jun 14, 9:07 PM CDTFlood WatchLCHAcadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more4 days
Jun 15, 2:17 AM CDTFlash Flood WarningLCHIberia, Saint Martin, St. Mary4 hr
Jun 15, 3:17 AM CDTFlash Flood WarningLCHLafayette, Saint Landry, Saint Martin3 hr
Jun 15, 4:39 AM CDTSpecial Weather StatementLCHAvoyelles, Evangeline, Saint Landry36 min
Jun 15, 7:55 AM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Rapides3 hr
Jun 15, 3:21 PM CDTFlash Flood WarningLCHAvoyelles, Evangeline, Rapides4 hr
Jun 15, 3:23 PM CDTRiver Flood WarningLCHVernon38 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.