The Mansura 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
Mostly sunny
Mostly sunny
Mostly sunny
22° on Nov. 17, 2006, the coldest reading for this week of the year since 1956. Next is 23° in 2019.
Mansura’s center stands about 80 ft above sea level. Within three miles the land runs from 50 ft to 110 ft, a difference of 60 ft: gently rolling country.
Under the town center the state geologic map shows Prairie Terraces (clay, silt, sand), from the Pleistocene, less than 2.6 million 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 14 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 3 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 Mansura reaches the Gulf of America by way of the Bayou Lacombe, the La Vieille Riviere, the Big Canal, the Bayou Jeansonne, the Bayou Natchitoches, the Red River, the Atchafalaya and the Lower Atchafalaya: about 180 river miles.
100 miles of the trip are on the Atchafalaya.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mansura; river miles along the main stem, rounded.
Mansura has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 39° in January. About 62 inches of rain fall in a normal year.
On November 14 Mansura normally reaches 70° and falls to 46°. The record high is 86°, in 2005; the record low 23°, in 2019. The most rain on this date, 3.41 in, fell in 1957.
Normals 1991–2020 and records since 1956 at Bunkie, 10 miles southwest. NOAA, through RCC-ACIS.
