The Brookwood 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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20° on Nov. 15, 1969, the coldest reading for this week of the year since 1930. Next is 20° in 1997.
Brookwood’s center stands about 600 ft above sea level. Within three miles the land runs from 380 ft to 690 ft, a difference of 310 ft: rolling country. The highest named summit within 15 miles is Round Mountain, about 790 ft, 8 miles north-northeast.
Under the town center the state geologic map shows Tuscaloosa Group; Coker Formation (sand, clay), from the Cretaceous, 66 to 145 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 33×. 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. Age: Cretaceous, 66 to 145 million years old. About 9 mi of the line.
Shale, siltstone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Sand. Age: Pleistocene, less than 2.6 million years old. About 2 mi of the line.
Shale. Age: Carboniferous, 324 to 359 million years old. About 0.5 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 0.4 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 Brookwood reaches Mobile Bay and the Gulf of America by way of Blanchet Branch, Hurricane Creek, the Black Warrior, the Tombigbee and the Mobile: about 380 river miles.
170 miles of the trip are on the Tombigbee.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Brookwood; river miles along the main stem, rounded.
Brookwood has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 34° in January. About 60 inches of rain fall in a normal year.
On November 14 Brookwood normally reaches 66° and falls to 42°. The record high is 80°, in 1964; the record low 21°, in 2019. The most rain on this date, 2.28 in, fell in 1957.
Normals 1991–2020 and records since 1930 at Bankhead Lock & Dam, 14 miles north, 320 ft lower. NOAA, through RCC-ACIS.
