The Oakman 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.
Oakman’s center stands about 340 ft above sea level. Within three miles the land runs from 320 ft to 650 ft, a difference of 330 ft: rolling country. The highest named summit within 15 miles is Lockhart Hill, about 820 ft, 7 miles northwest.
Under the town center the state geologic map shows Pottsville Formation (upper part) (shale, siltstone, sandstone), from the Carboniferous, 299 to 324 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 35×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, siltstone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 24 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 Oakman reaches Mobile Bay and the Gulf of America by way of Cane Creek, Lost Creek, the Mulberry Fork, the Black Warrior, the Tombigbee and the Mobile: about 420 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 Oakman; river miles along the main stem, rounded.
Oakman 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 Oakman 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, 18 miles south. NOAA, through RCC-ACIS.
