The Lecompte plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
Partly cloudy
Showers likely; warmer
Showers likely
Mostly sunny
Partly cloudy
Mostly sunny
Mostly sunny
4.19 inches of rain fell in two days, the most for this week of the year since records began in 1992. The next wettest, 4.17 inches, fell in 1996.
Lecompte’s center stands about 80 ft above sea level. Within three miles the land runs from 60 ft to 160 ft, a difference of 100 ft: gently rolling country.
Under the town center the state geologic map shows Natural Levees (silt, clay), from the Holocene, less than 12,000 years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Clay. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.
Silt, clay. Age: Holocene, less than 12,000 years old. About 4 mi of the line.
Clay, silt. Age: Pleistocene, less than 2.6 million years old. About 3 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 2 mi of the line.
Clay, silt. Age: Pleistocene, less than 2.6 million years old. About 0.7 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in Lecompte reaches the Gulf of America by way of the Bayou Pompey, the Bayou Rouge, the Bayou Teche and the Lower Atchafalaya: about 210 river miles.
Lake on the way: Dauterive Lake.
120 miles of the trip are on the Bayou Rouge.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lecompte; river miles along the main stem, rounded.
Lecompte has a humid subtropical climate. Summer afternoons average 93° in August; winter nights fall to about 38° in January. About 58 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1992 at Alexandria 5 SSE, 11 miles north-northwest. NOAA, through RCC-ACIS.
