The Boaz 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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15° on Nov. 15, 1969, the coldest reading for this week of the year since 1949. Next is 16° in 2019.
Boaz’s center stands about 1,070 ft above sea level. Within three miles the land runs from 980 ft to 1,160 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is Aurora Mountain, about 1,400 ft, 4 miles south-southwest.
Under the town center the state geologic map shows Pottsville Formation (sandstone, conglomerate), from the Carboniferous, 299 to 324 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 28×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 19 mi of the line.
Dolostone, limestone. Age: Cambrian to Ordovician, 445 to 542 million years old. About 3 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 1 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 0.4 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 0.1 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 Boaz reaches Mobile Bay and the Gulf of America by way of Clear Creek, the Locust Fork, the Black Warrior, the Tombigbee and the Mobile: about 540 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 Boaz; river miles along the main stem, rounded.
Boaz has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 30° in January. About 57 inches of rain fall in a normal year, with about 1 inch of snow.
On November 14 Boaz normally reaches 61° and falls to 39°. The record high is 82°, in 1955; the record low 19°, in 2019. The most rain on this date, 2.68 in, fell in 1957.
Normals 1991–2020 and records since 1949 at Sand Mount Substation, 13 miles east-northeast, 120 ft higher. NOAA, through RCC-ACIS.
