The Tallulah 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.
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9.80 inches of rain fell in two days, the most for this week of the year since records began in 1948. The next wettest, 5.75 inches, fell in 1948.
Tallulah’s center stands about 90 ft above sea level. Within three miles the land runs from 70 ft to 120 ft, a difference of 50 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 11 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 8 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 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 Tallulah reaches the Gulf of America by way of Mothiglam Bayou, the Tensas, the Black River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 310 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 Tallulah; river miles along the main stem, rounded.
Tallulah has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 38° in January. About 53 inches of rain fall in a normal year.
On November 14 Tallulah normally reaches 68° and falls to 44°. The record high is 85°, in 1955; the record low 20°, in 2013. The most rain on this date, 1.59 in, fell in 1970.
Normals 1991–2020 and records since 1948 from the Tallulah-Vicksburg Area threaded record (Tallulah Vicksburg Regional Airport, 10 miles east-southeast). NOAA, through RCC-ACIS.
