The Bowman 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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4.92 inches of rain fell in two days, the most for this week of the year since records began in 1919. The next wettest, 3.24 inches, fell in 2009.
Bowman’s center stands about 150 ft above sea level. Within three miles the land runs from 120 ft to 200 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Duplin Formation (sand, clay), from the Pliocene, 2.6 to 5.3 million years old.
The section below crosses 2 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. Age: Pliocene, 2.6 to 5.3 million years old. About 22 mi of the line.
Sand, limestone. Age: Tertiary, 2.6 to 66 million years old. About 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 Bowman reaches the Atlantic Ocean by way of Cow Castle Creek, Four Hole Swamp, the Edisto and the North Edisto: about 100 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bowman; river miles along the main stem, rounded.
Bowman has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 36° in January. About 50 inches of rain fall in a normal year.
On November 14 Bowman normally reaches 69° and falls to 44°. The record high is 83°, in 2005; the record low 23°, in 2013. The most rain on this date, 0.70 in, fell in 1997.
Normals 1991–2020 and records since 1919 at Orangeburg 2, 15 miles northwest. NOAA, through RCC-ACIS.
