Louisiana, 2024

Flash Flooding in Louisiana, December 10, 2024

December 10, 2024 · NWS LIX · 10 events in 1 county or zone

A slowing cold front interacted with deep tropical moisture on December 10th across southeast Louisiana and caused prolonged periods of heavy rainfall mainly across the city of Slidell. Significant street flooding occurred with this and cars became stranded in the typical problem spots across Slidell.

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
$20,000
Crop damage
None recorded
Events
10

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.

A slowing cold front interacted with deep tropical moisture on December 10th across southeast Louisiana and caused prolonged periods of heavy rainfall mainly across the city of Slidell. Significant street flooding occurred with this and cars became stranded in the typical problem spots across Slidell.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Dec 10, 2:32 PM CST, 1 hour 25 minutes earlier.

Area forecast discussion, Dec 10, 2:32 PM CST, 1 hour 25 minutes before
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In the hours before

Special weather statement, Dec 10, 9:58 AM CST, 5 hours 59 minutes before
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The radar

The Hammond radar (KHDC), 66 km away, was scanning. The volume nearest the first event began at 21:57 UTC.

Open the radar archive at this moment

Event by event

10 flash flood. Local standard time, as filed.

Flash Flood, St. Tammany

When
December 10, 3:57 PM CST to 5:45 PM CST
Where
St. Tammany County, 0.91 mi SE of North Slidell to 0.68 mi NE of Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.290, -89.770

Significant street flooding reported in the vicinity of Slidell High School.

Flash Flood, St. Tammany

When
December 10, 3:58 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.38 mi ENE of Slidell to 2.15 mi ESE of North Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.280, -89.760

Significant street flooding reported along Gause Blvd near Office Depot.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.38 mi ESE of North Slidell to 1.47 mi SE of North Slidell
Cause
Heavy Rain
Property damage
$20,000
Reported by
Public
Coordinates
30.290, -89.760

At least six cars stalled in high water on Independence Dr.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.19 mi E of North Slidell to 1.1 mi ESE of North Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.300, -89.760

Audubon impassable due to high water near Robert.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 0.6 mi E of North Slidell to 0.42 mi E of North Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.300, -89.770

North Blvd is impassable due to high water.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.83 mi SE of Alton to 1.86 mi NE of North Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.310, -89.750

Over 8 inches of standing water in the 200 block of Country Club Blvd.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 0.91 mi SE of Alton to 0.68 mi SE of Alton
Cause
Heavy Rain
Reported by
Public
Coordinates
30.320, -89.760

Significant street flooding along many streets in the chess neighborhood and around Whispering Pines Elementary School.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.38 mi WSW of Alton to 1.24 mi WSW of Alton
Cause
Heavy Rain
Reported by
Public
Coordinates
30.320, -89.790

Six to eight inches of standing water on Slidell Ave in the Morgans subdivision.

Flash Flood, St. Tammany

When
December 10, 4:00 PM CST to 5:45 PM CST
Where
St. Tammany County, 2.48 mi WNW of Pearl River to 2.66 mi WNW of Pearl River
Cause
Heavy Rain
Reported by
Public
Coordinates
30.390, -89.790

Almost a foot of standing water on Central Ave in Pearl River.

Flash Flood, St. Tammany

When
December 10, 4:01 PM CST to 5:45 PM CST
Where
St. Tammany County, 1.79 mi E of North Slidell to 1.69 mi E of North Slidell
Cause
Heavy Rain
Reported by
Public
Coordinates
30.300, -89.750

Significant street flooding reported at the intersection of Grafton and Candlewood.

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 2024Every state in 2024This day in weather historyWarnings in Louisiana, December 2024

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: 1228571, 1228572, 1228573, 1228575, 1228576, 1228577, 1228578, 1228579, 1228580, 1228581.