The Lacombe 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.
Sunny
Partly cloudy
Mostly cloudy
Mostly sunny; warmer
Mostly sunny
Partly cloudy
Mostly sunny
25° on Nov. 13, 2019, the coldest reading for this week of the year since 1988. Next is 26° in 2025.
Lacombe’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 50 ft, a difference of 50 ft: nearly flat ground.
The section below crosses 4 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, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 13 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 0.5 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 Lacombe reaches Lake Pontchartrain and the Gulf of America by way of Lacombe Bayou: about 6 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lacombe; river miles along the main stem, rounded.
Lacombe has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 41° in January. About 62 inches of rain fall in a normal year.
On November 14 Lacombe normally reaches 71° and falls to 47°. The record high is 82°, in 2005; the record low 29°, in 2014. The most rain on this date, 1.53 in, fell in 2022.
Normals 1991–2020 and records since 1988 at Slidell Airport, 8 miles east-northeast. NOAA, through RCC-ACIS.
