The Foreston 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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3.68 inches of rain fell in two days, the most for this week of the year since records began in 1948. The next wettest, 2.83 inches, fell in 1979.
Foreston’s center stands about 100 ft above sea level. Within three miles the land runs from 80 ft to 150 ft, a difference of 70 ft: gently rolling country.
The section below crosses 4 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, limestone. Age: Tertiary, 2.6 to 66 million years old. About 11 mi of the line.
Limestone, sand. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.
Peat. Age: Quaternary, less than 2.6 million years old. About 6 mi of the line.
Sand, gravel. Age: Quaternary, less than 2.6 million years old. About 0.7 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 Foreston reaches the Atlantic Ocean by way of Mount Hope Swamp, the Santee and the South Santee: about 75 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Foreston; river miles along the main stem, rounded.
Foreston has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 35° in January. About 56 inches of rain fall in a normal year.
On November 14 Foreston normally reaches 66° and falls to 43°. The record high is 84°, in 1989; the record low 20°, in 1977. The most rain on this date, 0.72 in, fell in 2000.
Normals 1991–2020 and records since 1948 at Manning, 9 miles west-northwest. NOAA, through RCC-ACIS.
