Alert archive / Louisiana / Tornado Warnings in 2026

Tornado Warning 74, NWS New Orleans, LA

June 18, 2026Jefferson Parish, Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this tornado warning at Jun 18, 2026, 5:08 AM CDT for Jefferson Parish, Saint Charles Parish, Louisiana. It was in force for 39 min. 4 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, 5:08 AM CDT (10:08 UTC)
Expired: Jun 18, 2026, 5:47 AM CDT
In force: 39 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Jefferson Parish, LA, Saint Charles Parish, LA

The radar

The Hammond radar (KHDC), 78 km from the middle of the area, began a volume at 10:11 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

Time	Report	Where	Remark
Jun 18, 5:33 AM CDT	TORNADO	2 Wnw Avondale, LA	* 2 INJ * Corrects previous tornado report from 2 WNW Avondale. A NWS ground survey confirmed an EF-1 tornado touched down in Avondale, LA near Butler Drive and continued to Center Street.
Jun 18, 5:33 AM CDT	TORNADO	2 Wnw Avondale, LA	A NWS ground survey confirmed an EF-1 tornado touched down in Avondale, LA near Butler Drive and continued to Center Street.
Jun 18, 5:35 AM CDT	TSTM WND DMG	1 Nw Avondale, LA	Report of destroyed mobile home in Avondale.
Jun 18, 5:40 AM CDT	TSTM WND DMG	1 S Harahan, LA	Trained spotter reported minor sign, powerline and tree damage from possible tornado crossing the Mississippi River near Waggaman.

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 2 storm reports to this tornado warning; the first came 25 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 17, 10:23 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.1 hours before the alert went out and 74 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1945 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

489 
WFUS54 KLIX 181008
TORLIX
LAC051-089-181100-
/O.NEW.KLIX.TO.W.0074.260618T1008Z-260618T1100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
508 AM CDT Thu Jun 18 2026

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Southeastern St. Charles Parish in southeastern Louisiana...
  Northwestern Jefferson Parish in southeastern Louisiana...

* Until 600 AM CDT.

* At 508 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Bayou Gauche, or 9 miles south of Hahnville,
  moving northeast at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Luling around 515 AM CDT.
  Ama around 520 AM CDT.
  Avondale and Waggaman around 525 AM CDT.
  Harahan and River Ridge around 530 AM CDT.
  Elmwood around 535 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2976 9037 2977 9039 2983 9044 2999 9029
      2994 9019 2983 9015 2981 9019 2984 9023
      2980 9022 2974 9037
TIME...MOT...LOC 1008Z 231DEG 17KT 2983 9036 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KLG

5 follow-up statements

483 
WWUS54 KLIX 181017
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
517 AM CDT Thu Jun 18 2026

LAC051-089-181100-
/O.CON.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
St. Charles LA-Jefferson LA-
517 AM CDT Thu Jun 18 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR
SOUTHEASTERN ST. CHARLES AND NORTHWESTERN JEFFERSON PARISHES...

At 517 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Luling, or 8 miles southwest of Avondale, moving
northeast at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Avondale, Luling, and Waggaman around 525 AM CDT.
  Harahan and River Ridge around 530 AM CDT.
  Elmwood around 535 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

If on or near areas of water, get away and move to safe shelter
immediately. If you can hear thunder, you are close enough to be
struck by lightning. Severe thunderstorms can produce large capsizing
waves, even on small bodies of water. Move into dock and seek safe
shelter now! Do not be caught on the water in a thunderstorm.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2980 9037 2985 9037 2998 9026 2994 9019
      2984 9015 2982 9019 2984 9023 2982 9022
      2981 9023 2977 9032
TIME...MOT...LOC 1017Z 236DEG 20KT 2984 9031 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KLG

618 
WWUS54 KLIX 181025
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
525 AM CDT Thu Jun 18 2026

LAC051-089-181100-
/O.CON.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
St. Charles LA-Jefferson LA-
525 AM CDT Thu Jun 18 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR EAST
CENTRAL ST. CHARLES AND NORTHWESTERN JEFFERSON PARISHES...

At 524 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Waggaman, or near Avondale, moving northeast at 30
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Avondale, Harahan, Waggaman, and River Ridge around 530 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2989 9032 2997 9025 2995 9021 2993 9019
      2986 9016 2983 9027 2985 9030
TIME...MOT...LOC 1024Z 232DEG 27KT 2987 9026 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

KLG

516 
WWUS54 KLIX 181028
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
528 AM CDT Thu Jun 18 2026

LAC051-089-181100-
/O.CON.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
St. Charles LA-Jefferson LA-
528 AM CDT Thu Jun 18 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR EAST
CENTRAL ST. CHARLES AND NORTHWESTERN JEFFERSON PARISHES...

At 528 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Waggaman, or near Avondale, moving northeast at 35
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Avondale, Harahan, Waggaman, and River Ridge around 535 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2991 9029 2997 9025 2995 9021 2993 9019
      2990 9018 2987 9026
TIME...MOT...LOC 1028Z 213DEG 29KT 2990 9024 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Zeringue

835 
WWUS54 KLIX 181039
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
539 AM CDT Thu Jun 18 2026

LAC089-181049-
/O.CAN.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
St. Charles LA-
539 AM CDT Thu Jun 18 2026

...THE TORNADO WARNING FOR EAST CENTRAL ST. CHARLES PARISH IS
CANCELLED...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CDT for southeastern
Louisiana.

&&

LAT...LON 2992 9026 2997 9024 2995 9021 2993 9019
      2991 9019 2989 9022
TIME...MOT...LOC 1039Z 231DEG 17KT 2993 9019 

$$

LAC051-181100-
/O.CON.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
Jefferson LA-
539 AM CDT Thu Jun 18 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR
NORTHWESTERN JEFFERSON PARISH...

At 539 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Harahan, or over Avondale, moving northeast at 20
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Jefferson Parish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2992 9026 2997 9024 2995 9021 2993 9019
      2991 9019 2989 9022
TIME...MOT...LOC 1039Z 231DEG 17KT 2993 9019 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Zeringue

584 
WWUS54 KLIX 181047
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
547 AM CDT Thu Jun 18 2026

LAC051-181056-
/O.CAN.KLIX.TO.W.0074.000000T0000Z-260618T1100Z/
Jefferson LA-
547 AM CDT Thu Jun 18 2026

...THE TORNADO WARNING FOR NORTHWESTERN JEFFERSON PARISH IS
CANCELLED...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 AM CDT for southeastern
Louisiana.

Remember, a Tornado Warning still remains in effect for Metairie and 
New Orleans!

&&

LAT...LON 2992 9026 2997 9024 2995 9021 2993 9019
      2991 9019 2989 9022
TIME...MOT...LOC 1045Z 231DEG 17KT 2995 9016 

$$

Zeringue

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this tornado warning went out at Jun 18, 4:00 AM CDT, 1 hour 8 minutes earlier. Its key messages:

Updated at 354 AM CDT Thu Jun 18 2026
Potential for Life Threatening Flash Flooding. A Particularly Dangerous and Life Threatening Flash Flood Situation exists with a High Risk of Flooding across portions of south Mississippi and southeast Louisiana, especially east of Interstate 55. Considerable Flash Flooding is likely and Catastrophic Flash Flooding is possible today.
A Flood Watch is in effect through Friday morning for most of southeast Louisiana as well as all of southwest and coastal Mississippi.
Tornado Watch 348 in effect until 6 AM CDT for most of the area.
Dangerous conditions for mariners of small craft and minor coastal flooding on south facing shores west of the Mississippi River will persist through tonight as Post Tropical Cyclone Arthur moves into southwest Louisiana.
Extreme heat is expected this weekend. Heat advisories will likely be issued for heat index values of around 110 degrees.

Area forecast discussion, Jun 18, 4:00 AM CDT, 1 hour 8 minutes before

Area Forecast Discussion
National Weather Service New Orleans LA
400 AM CDT Thu Jun 18 2026

...New UPDATE, KEY MESSAGES...

.KEY MESSAGES...
Updated at 354 AM CDT Thu Jun 18 2026

- Potential for Life Threatening Flash Flooding. A Particularly
  Dangerous and Life Threatening Flash Flood Situation exists with
  a High Risk of Flooding across portions of south Mississippi and
  southeast Louisiana, especially east of Interstate 55.
  Considerable Flash Flooding is likely and Catastrophic Flash
  Flooding is possible today.

- A Flood Watch is in effect through Friday morning for most of
  southeast Louisiana as well as all of southwest and coastal
  Mississippi.

- Tornado Watch 348 in effect until 6 AM CDT for most of the area.

- Dangerous conditions for mariners of small craft and minor
  coastal flooding on south facing shores west of the Mississippi
  River will persist through tonight as Post Tropical Cyclone
  Arthur moves into southwest Louisiana.

- Extreme heat is expected this weekend. Heat advisories will
  likely be issued for heat index values of around 110 degrees.

&&

.UPDATE...
Issued at 354 AM CDT Thu Jun 18 2026

Updated Key Messages for WPC's High Risk of Excessive Rainfall
today for portions of the area. Likely to have a fairly large
stripe of 6 to 10 inch rainfall with isolated totals significantly
higher from Houma and Thibodaux northeastward.

&&

.SHORT TERM...
(Now through Sunday)
Issued at 1220 AM CDT Thu Jun 18 2026

Post Tropical Cyclone Arthur has degenerated to a low pressure
area along the Upper Texas Coast. The remnants will continue to
track across western Louisiana overnight and will reach the
Carolinas coastlines by Friday morning. We've already seen some
rotation in radar data, and expect we'll have short-lived spinups
overnight. Additionally, we remain highly concerned about extreme
rainfall amounts overnight. We already had 2.3 inch precipitable
water values at 00z, with guidance indicating that values near 2.6
inches are possible/likely overnight as a 35-40 knot low level jet
plugs in. The 02Z HRRR, for instance, has a large area of rainfall
totals in excess of 6 inches across the area by mid-afternoon
Thursday with spot totals approaching or exceeding 10 inches. If
these totals, or anything close are realized, we're probably
looking at major flooding in those areas. No changes to Flood
Watch anticipated. Could still be scattered precipitation into
Thursday evening associated with this system before we start
seeing some slight drying.

With precipitable water values remaining near 2 inches through
Sunday, still plenty of moisture available for scattered
convection, even without large scale forcing to aid in producing
lift. The large scale heavy rainfall threat will diminish beyond
Thursday evening, but localized heavy rain still possible. Could
also see a few microbursts on Friday.

A second issue over the weekend will be heat stress. We'll likely
see at least some sunshine at times Friday through the weekend
that will allow temperatures to get into the lower, or possibly
middle 90s in many areas. With dew points likely in the upper 70s
to near 80, and lots of residual moisture on the ground, it's
going to be steamy. Likely to have heat index values near our 108
degree criteria for Heat Advisories in many areas on Friday and
possibly again on Sunday. This will be addressed once we get past
the rainfall and tornado issues this morning. Overnight lows may
have trouble getting below 80 degrees for several nights.

&&

.LONG TERM...
(Sunday night through Wednesday)
Issued at 1220 AM CDT Thu Jun 18 2026

Ridging sets up over the northern Gulf for the first half of next
week. However, shortwaves will be tracking west to east just north
of the local area. If we are going to have a day that is
completely dry, it'll probably be Monday. Similar to the weekend,
we'll have to monitor for potential Heat Advisories, especially
Monday. For Tuesday and Wednesday, the question will be exactly
when storms develop. If they develop early enough in the day, that
would blunt the heat somewhat. For now, will stick with the NBM
forecast temperatures with several days seeing highs in the lower
and middle 90s.

&&

.AVIATION...
(06Z TAFS)
Issued at 1220 AM CDT Thu Jun 18 2026

Conditions currently at VFR to MVFR in most locations. However,
with showers and storms moving northeastward onshore, conditions
likely to deteriorate in the next few hours. Post Tropical Cyclone
Arthur and its remnants will continue to bring impacts to the area
with rain and gusty winds through the night. The most impactful
weather will move through the area generally from 06Z to 15Z with
BTR/MSY/HDC/MCB targeted from 06Z to 12Z and ASD/NEW/GPT from 09Z
to 15Z. Brief periods of wind shear and gusts to 30+ knots will
accompany the strongest weather. Coverage of SHRA/TSRA will
diminish by late afternoon, as will the winds.

&&

.MARINE...
Issued at 1220 AM CDT Thu Jun 18 2026

Strong southerly winds of 20 to 25 knots with gusts of 30 knots
will remain in place over the coastal waters through tonight and
into Thursday and seas of 6 to 9 feet can be expected in the open
Gulf waters. Small craft advisories remain in effect due to these
conditions. Moving into the weekend and early next week, a broad
area of high pressure will build back over the eastern Gulf
waters. Persistent onshore winds of 10 to 15 knots and seas of 2
to 4 feet can be expected from Friday through early next week.

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Flood Watch through Friday morning for LAZ034>037-039-046>048-
     056>058-064-071-076>087-089-090-092-094-096-098>100.

GM...Small Craft Advisory until 6 AM CDT Friday for GMZ529-531>536-
     541-543-551-553-554-557-570-572-575-577.

MS...Flood Watch through Friday morning for MSZ068>071-077-083>088.

GM...Small Craft Advisory until 6 AM CDT Friday for GMZ531>536-541-
     543-551-553-554-557-570-572-575-577.

&&

SHORT TERM...RW
LONG TERM....RW
AVIATION...RW
MARINE...RW

In the hours before

Local storm report, Jun 18, 4:13 AM CDT, 55 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
413 AM CDT Thu Jun 18 2026

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

0413 AM     Flash Flood      1 NNE Houma             29.60N 90.70W
06/18/2026                   Terrebonne         LA   Public

            Howard Ave. in Houma is covered by water.

&&

PG

Local storm report, Jun 18, 4:22 AM CDT, 46 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
422 AM CDT Thu Jun 18 2026

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

0400 AM     Flash Flood      Bayou Cane              29.62N 90.75W
06/18/2026                   Terrebonne         LA   Public

            Video of homes flooding in the Bayou Cane
            area.

&&

PG

Local storm report, Jun 18, 4:24 AM CDT, 44 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
424 AM CDT Thu Jun 18 2026

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

0420 AM     Flash Flood      3 ESE Destrehan         29.95N 90.32W
06/18/2026                   St. Charles        LA   Trained Spotter

            Streets flooding up to 6 inches deep in St.
            Rose.

&&

PG

Local storm report, Jun 18, 4:26 AM CDT, 42 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
426 AM CDT Thu Jun 18 2026

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

0415 AM     Flash Flood      2 WNW Houma             29.59N 90.73W
06/18/2026                   Terrebonne         LA   Public

            Photo on social media shows streets and
            yards flooded on Hall St. in Houma.

&&

PG

Local storm report, Jun 18, 4:31 AM CDT, 37 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
431 AM CDT Thu Jun 18 2026

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

0400 AM     Flash Flood      1 N Houma               29.59N 90.71W
06/18/2026                   Terrebonne         LA   Public

            Video on social media shows extensive street
            and yard flooding near Honduras Elementary
            School in Houma.

&&

PG

Local storm report, Jun 18, 5:02 AM CDT, 6 minutes before

Preliminary Local Storm Report
National Weather Service New Orleans LA
502 AM CDT Thu Jun 18 2026

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

0451 AM     Marine Tstm Wind 13 NNE Metairie         30.18N 90.13W
06/18/2026  M46 MPH          GMZ531             LA   Mesonet

            The Weatherflow mesonet on the Lake
            Pontchartrain Causeway measured a
            thunderstorm wind gust of 46 mph.

&&

MEFFER

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 7:15 PM CDT	Special Weather Statement	LIX	Saint John the Baptist	45 min
Jun 17, 7:21 PM CDT	Special Marine Warning	LIX		84 min
Jun 17, 7:54 PM CDT	Special Weather Statement	LIX	Saint John the Baptist	51 min
Jun 17, 8:10 PM CDT	Special Weather Statement	LIX	Tangipahoa	35 min
Jun 17, 9:08 PM CDT	Special Weather Statement	LIX	Saint John the Baptist	37 min
Jun 17, 9:29 PM CDT	Special Marine Warning	LIX		91 min
Jun 17, 9:32 PM CDT	Special Weather Statement	LIX	Tangipahoa	43 min
Jun 17, 9:42 PM CDT	Special Weather Statement	LIX	Saint Charles	33 min
Jun 17, 9:53 PM CDT	Special Marine Warning	LIX		82 min
Jun 17, 10:05 PM CDT	Special Weather Statement	LIX	Saint Tammany, Washington	55 min
Jun 17, 11:01 PM CDT	Special Marine Warning	LIX		89 min
Jun 17, 11:51 PM CDT	Special Weather Statement	LIX	Terrebonne	39 min
Jun 18, 12:11 AM CDT	Areal Flood Advisory	LIX	Lafourche, Terrebonne	4 hr
Jun 18, 12:22 AM CDT	Special Weather Statement	LIX	Terrebonne	38 min
Jun 18, 12:39 AM CDT	Tornado Warning	LIX	Terrebonne	31 min
Jun 18, 1:01 AM CDT	Tornado Warning	LIX	Lafourche	44 min
Jun 18, 1:20 AM CDT	Special Marine Warning	LIX		55 min
Jun 18, 1:28 AM CDT	Special Weather Statement	LIX	Terrebonne	47 min
Jun 18, 1:40 AM CDT	Special Marine Warning	LIX		49 min
Jun 18, 1:43 AM CDT	Tornado Warning	LIX	Lafourche, Saint Charles	36 min
Jun 18, 1:48 AM CDT	Severe Thunderstorm Warning	LIX	Terrebonne	57 min
Jun 18, 1:49 AM CDT	Areal Flood Advisory	LIX	Assumption, Lafourche, Terrebonne	4 hr
Jun 18, 1:54 AM CDT	Tornado Warning	LIX	Lafourche, Terrebonne	36 min
Jun 18, 1:58 AM CDT	Tornado Warning	LIX	Terrebonne	47 min
Jun 18, 2:05 AM CDT	Tornado Warning Tornado observed	LIX	Saint Charles	25 min
Jun 18, 2:22 AM CDT	Tornado Warning	LIX	Terrebonne	53 min
Jun 18, 2:28 AM CDT	Special Marine Warning	LIX		47 min
Jun 18, 2:31 AM CDT	Flash Flood Warning	LIX	Assumption, Lafourche, Terrebonne	4 hr
Jun 18, 2:36 AM CDT	Special Weather Statement	LIX	Saint John the Baptist	39 min
Jun 18, 2:37 AM CDT	Areal Flood Advisory	LIX	Saint Charles, Saint John the Baptist	3 hr
Jun 18, 2:42 AM CDT	Areal Flood Advisory	LIX	Lafourche	3 hr
Jun 18, 3:04 AM CDT	Severe Thunderstorm Warning	LIX	Lafourche, Terrebonne	41 min
Jun 18, 3:09 AM CDT	Tornado Warning Tornado observed	LIX	Lafourche, Terrebonne	35 min
Jun 18, 3:14 AM CDT	Flash Flood Warning	LIX	Lafourche, Saint Charles, Saint James, Saint John the Baptist	5 hr
Jun 18, 3:22 AM CDT	Tornado Warning	LIX	Jefferson, Saint Charles, Saint John the Baptist	46 min
Jun 18, 3:30 AM CDT	Flash Flood Warning	LIX	Lafourche, Terrebonne	3 hr
Jun 18, 3:34 AM CDT	Tornado Warning	LIX	Lafourche, Saint Charles	41 min
Jun 18, 3:40 AM CDT	Severe Thunderstorm Warning	LIX	Lafourche, Saint Charles, Terrebonne	50 min
Jun 18, 3:41 AM CDT	Tornado Warning	LIX	Lafourche, Terrebonne	49 min
Jun 18, 3:57 AM CDT	Special Marine Warning	LIX		93 min
Jun 18, 4:06 AM CDT	Tornado Warning	LIX	Lafourche	39 min
Jun 18, 4:18 AM CDT	Tornado Warning	LIX	Saint Charles	27 min
Jun 18, 4:26 AM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Saint Charles, Terrebonne	64 min
Jun 18, 4:33 AM CDT	Flash Flood Warning	LIX	Jefferson, Orleans, Saint Charles	3 hr
Jun 18, 4:33 AM CDT	Tornado Warning	LIX	Jefferson	18 min
Jun 18, 4:38 AM CDT	Tornado Warning	LIX	Lafourche, Saint Charles	24 min
Jun 18, 4:49 AM CDT	Special Marine Warning	LIX		41 min
Jun 18, 4:50 AM CDT	Special Marine Warning	LIX		40 min
Jun 18, 4:54 AM CDT	Tornado Warning Tornado observed	LIX	Saint Charles	22 min
Jun 18, 4:56 AM CDT	Tornado Warning	LIX	Saint Tammany	25 min
Jun 18, 5:07 AM CDT	Flash Flood Warning	LIX	Saint Tammany	6 hr
Jun 18, 5:16 AM CDT	Tornado Warning	LIX	Jefferson	13 min
Jun 18, 5:28 AM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Saint Bernard, Saint Charles, Saint John the Baptist	62 min
Jun 18, 5:30 AM CDT	Special Marine Warning	LIX		90 min
Jun 18, 5:32 AM CDT	Tornado Warning	LIX	Jefferson, Orleans	32 min
Jun 18, 5:50 AM CDT	Special Marine Warning	LIX		85 min
Jun 18, 6:03 AM CDT	Flash Flood Warning	LIX	Saint Tammany	3 hr
Jun 18, 6:12 AM CDT	Flash Flood Warning Considerable damage threat	LIX	Jefferson, Orleans, Saint Charles	3 hr
Jun 18, 6:41 AM CDT	Tornado Warning	LIX	Saint Tammany	34 min
Jun 18, 6:51 AM CDT	Tornado Warning	LIX	Saint Tammany	24 min
Jun 18, 7:00 AM CDT	Flash Flood Warning Considerable damage threat	LIX	Saint Tammany	5 hr
Jun 18, 7:02 AM CDT	Tornado Warning Tornado observed	LIX	Saint Tammany	43 min
Jun 18, 7:03 AM CDT	Severe Thunderstorm Warning Considerable damage threat	LIX	Orleans, Saint Tammany	42 min
Jun 18, 7:09 AM CDT	Special Marine Warning	LIX		66 min
Jun 18, 7:32 AM CDT	Tornado Warning	LIX	Saint Tammany	11 min
Jun 18, 7:55 AM CDT	Areal Flood Advisory	LIX	Pointe Coupee	102 min
Jun 18, 7:59 AM CDT	Special Marine Warning	LIX		91 min
Jun 18, 8:07 AM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	38 min
Jun 18, 8:21 AM CDT	Tornado Warning	LIX	Saint Tammany	23 min
Jun 18, 8:38 AM CDT	Flash Flood Warning	LIX	Saint Tammany, Washington	3 hr
Jun 18, 9:37 AM CDT	Flash Flood Warning	LIX	Pointe Coupee, West Feliciana	6 hr
Jun 18, 10:08 AM CDT	River Flood Warning	LIX	Tangipahoa	6 hr
Jun 18, 10:08 AM CDT	River Flood Warning	LIX	Tangipahoa	53 hr
Jun 18, 10:10 AM CDT	River Flood Warning	LIX	East Baton Rouge	70 hr
Jun 18, 10:10 AM CDT	River Flood Warning	LIX	Ascension, Livingston	21 days
Jun 18, 10:10 AM CDT	River Flood Warning	LIX	Tangipahoa	10 hr
Jun 18, 10:58 AM CDT	Heat Advisory	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more	32 hr
Jun 18, 11:17 AM CDT	Areal Flood Warning	LIX	Saint Tammany	6 hr
Jun 18, 11:26 AM CDT	Special Marine Warning	LIX		64 min
Jun 18, 11:27 AM CDT	Special Marine Warning	LIX		63 min

Nearby

Tornado Warnings in Louisiana, 2026 Every tornado warning in 2026 Tornadoes 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.