The Forestbrook 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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4.36 inches of rain fell in two days, the most for this week of the year since records began in 1931. The next wettest, 3.66 inches, fell in 2009.
Forestbrook’s center stands about 20 ft above sea level. Within three miles the land runs from 10 ft to 70 ft, a difference of 60 ft: gently rolling country.
Under the town center the state geologic map shows Socastee Formation (sand, clay), from the Quaternary, less than 2.6 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: Quaternary, less than 2.6 million years old. About 16 mi of the line.
Sand, gravel. Age: Quaternary, less than 2.6 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 Forestbrook reaches the Atlantic Ocean by way of Socastee Swamp, the Little River and the Waccamaw: about 35 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Forestbrook; river miles along the main stem, rounded.
Forestbrook has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 37° in January. About 48 inches of rain fall in a normal year.
On November 14 Forestbrook normally reaches 67° and falls to 46°. The record high is 82°, in 1931; the record low 23°, in 2013. The most rain on this date, 0.75 in, fell in 1952.
Normals 1991–2020 and records since 1931 from the Myrtle Beach Area threaded record (North Myrtle Beach, 15 miles east-northeast). NOAA, through RCC-ACIS.
