Louisiana, 2013

Flash Flood in Louisiana, July 11, 2013

July 11, 2013 · NWS LIX · 1 event in 1 county or zone

Outflow boundaries from thunderstorms the previous evening focused thunderstorm development near the shoreline of Lake Pontchartrain.

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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

Outflow boundaries from thunderstorms the previous evening focused thunderstorm development near the shoreline of Lake Pontchartrain.

The radar

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

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, St. Tammany

When
July 11, 1:10 PM CST to 2:30 PM CST
Where
St. Tammany County, 6.45 mi SSE of Mc Clane City to 4.84 mi SSW of Bonfouca
Cause
Heavy Rain
Reported by
Social Media
Coordinates
30.170, -89.714

Several reports of flooding were received from the Slidell area, with numerous streets impassable, and water encroaching on homes. Some areas affected included the Gause Boulevard area, as well as Lake Village and Robert Park subdivisions.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

More

Every storm in Louisiana in 2013Every state in 2013This day in weather historyWarnings in Louisiana, July 2013

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 2026-10-01. Each event’s entry at NCEI: 453589.