Louisiana, 2023

Damaging Winds in Louisiana, September 7, 2023

September 7, 2023 · NWS LIX · 11 events in 7 counties and zones

Thunderstorms triggered off of a convergent boundary during peak heating across southeast Mississippi and propagated southwestward across coastal Mississippi and southeast Louisiana during the afternoon and evening hours. Fueled by high instability and drier mid-level air, these storms quickly became severe and produced damaging winds in their path.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$80,000
Crop damage
None recorded
Events
11

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.

What happened

The episode as NWS LIX wrote it up.

Thunderstorms triggered off of a convergent boundary during peak heating across southeast Mississippi and propagated southwestward across coastal Mississippi and southeast Louisiana during the afternoon and evening hours. Fueled by high instability and drier mid-level air, these storms quickly became severe and produced damaging winds in their path. The complex eventually made its way over the coastal waters where it finally dissipated.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

11 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Washington

When
September 7, 2:21 PM CST
Where
Washington County, 0.69 mi N of Jenkins
Measured
52 kt (60 mph) estimated gust
Property damage
$8,000
Reported by
Public
Coordinates
30.830, -90.130

One-inch tree limbs broken and minor roof damage with some shingles blown off.

Thunderstorm Wind, St. Tammany

When
September 7, 3:00 PM CST
Where
St. Tammany County, 1.5 mi NNW of Goodbee
Measured
52 kt (60 mph) estimated gust
Property damage
$3,000
Reported by
NWS Employee
Coordinates
30.520, -90.210

Tree down on Highway 1077 and multiple reports of damage in the Spring Lakes subdivision including a downed fence, a large outdoor playground destroyed, and multiple tree limbs broken.

Thunderstorm Wind, Tangipahoa

When
September 7, 3:16 PM CST
Where
Tangipahoa County, 5.51 mi ENE of Lees Lndg
Measured
52 kt (60 mph) estimated gust
Property damage
$2,000
Reported by
Broadcast Media
Coordinates
30.440, -90.250

Broadcast media relayed pictures of trees down in the Bedico area.

Thunderstorm Wind, St. John the Baptist

When
September 7, 4:06 PM CST
Where
St. John the Baptist County, 2.07 mi S of Galva
Measured
52 kt (60 mph) estimated gust
Property damage
$2,000
Reported by
Law Enforcement
Coordinates
30.250, -90.400

Power lines down on Old Highway 51.

Thunderstorm Wind, St. Charles

When
September 7, 4:48 PM CST
Where
St. Charles County, 1.51 mi SSE of Norco
Measured
52 kt (60 mph) estimated gust
Property damage
$36,000
Reported by
Emergency Manager
Coordinates
29.980, -90.410

Tree down on top of trailer in Hahnville.

Thunderstorm Wind, Ascension

When
September 7, 5:04 PM CST
Where
Ascension County, 0.69 mi N of Duplessis
Measured
52 kt (60 mph) estimated gust
Property damage
$1,000
Reported by
Law Enforcement
Coordinates
30.280, -90.950

Tree down near Germany and Airline Road.

Thunderstorm Wind, Terrebonne

When
September 7, 5:24 PM CST
Where
Terrebonne County, 0.6 mi W of Gray
Measured
52 kt (60 mph) estimated gust
Property damage
$2,000
Reported by
Emergency Manager
Coordinates
29.700, -90.790

Tree down on home on West Main Street.

Thunderstorm Wind, Terrebonne

When
September 7, 5:28 PM CST
Where
Terrebonne County, 2.16 mi NNE of Hollywood
Measured
52 kt (60 mph) estimated gust
Property damage
$3,000
Reported by
Emergency Manager
Coordinates
29.630, -90.760

Tree down on powerlines on Shady Oaks Court in Houma.

Thunderstorm Wind, Terrebonne

When
September 7, 5:28 PM CST
Where
Terrebonne County, 3.51 mi N of Hollywood
Measured
52 kt (60 mph) estimated gust
Property damage
$1,000
Reported by
Emergency Manager
Coordinates
29.650, -90.760

Tree down near West Park Avenue and Hampton.

Thunderstorm Wind, Terrebonne

When
September 7, 5:36 PM CST
Where
Terrebonne County, 0.6 mi E of Hollywood
Measured
52 kt (60 mph) estimated gust
Property damage
$20,000
Reported by
Public
Coordinates
29.600, -90.760

Metal roof removed on Venture Boulevard.

Thunderstorm Wind, Terrebonne

When
September 7, 5:48 PM CST
Where
Terrebonne County, 2.4 mi SSE of Klondyke
Measured
52 kt (60 mph) estimated gust
Property damage
$2,000
Reported by
Emergency Manager
Coordinates
29.520, -90.580

Power lines down on Highway 55 in Bourg.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Louisiana in 2023Every state in 2023This day in weather historyWarnings in Louisiana, September 2023

Sources

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 2026-09-30. Each event’s entry at NCEI: 1142805, 1142815, 1142814, 1142806, 1142807, 1142809, 1142810, 1142811, 1142812, 1142808, 1142813.