The Loreauville 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.
22° on Nov. 15, 1940, the coldest reading for this week of the year since 1892. Next is 23° in 1916.
Loreauville’s center stands about 20 ft above sea level. Within three miles the land runs from 10 ft to 30 ft, a difference of 20 ft: nearly flat ground.
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 3 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.
Silt, clay. Age: Holocene, less than 12,000 years old. About 15 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 5 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 0.8 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 Loreauville reaches the Gulf of America by way of the Bayou Teche and the Lower Atchafalaya: about 95 river miles.
75 miles of the trip are on the Bayou Teche.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Loreauville; river miles along the main stem, rounded.
Loreauville has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 42° in January. About 66 inches of rain fall in a normal year.
On November 14 Loreauville normally reaches 70° and falls to 49°. The record high is 86°, in 1964; the record low 25°, in 2019. The most rain on this date, 1.80 in, fell in 1961.
Normals 1991–2020 and records since 1892 at Jeanerette 5 NW, 7 miles south-southeast. NOAA, through RCC-ACIS.