The Fort Jesup 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.
Mostly sunny
Showers likely
Showers likely
Mostly sunny; warmer
Partly cloudy
Mostly sunny
Mostly sunny
21° on Nov. 13, 2019, the coldest reading for this week of the year since 1893. Next is 22° in 1940.
Fort Jesup’s center stands about 360 ft above sea level. Within three miles the land runs from 220 ft to 390 ft, a difference of 170 ft: gently rolling country.
Under the town center the state geologic map shows Wilcox Group (undifferentiated) (sand, clay, lignite), from the Paleocene, 56 to 66 million years old.
The section below crosses 5 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.
Sand, clay, lignite. Age: Paleocene, 56 to 66 million years old. About 14 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Clay, silt, sand. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Clay, marl. Age: Eocene, 34 to 56 million years old. About 0.7 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 0.2 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 Fort Jesup reaches the Gulf of America by way of Harpoon Bayou, the Bayou La Nana and the Sabine: about 220 river miles.
Lakes on the way: Toledo Bend Reservoir and Sabine Lake.
140 miles of the trip are on the Sabine.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fort Jesup; river miles along the main stem, rounded.
Fort Jesup has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 38° in January. About 55 inches of rain fall in a normal year.
On November 14 Fort Jesup normally reaches 69° and falls to 45°. The record high is 86°, in 1955; the record low 25°, in 2019. The most rain on this date, 1.90 in, fell in 1998.
Normals 1991–2020 and records since 1893 from the Natchitoches Area threaded record (Natchitoches #2, 23 miles northeast, 220 ft lower). NOAA, through RCC-ACIS.
