The South Weldon 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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6.00 inches of rain fell in two days, the most for this week of the year since records began in 1972. The next wettest, 4.15 inches, fell in 2009.
South Weldon’s center stands about 100 ft above sea level. Within three miles the land runs from 40 ft to 180 ft, a difference of 140 ft: gently rolling country. The highest named summit within 15 miles is Wilkins Hill, about 360 ft, 13 miles northwest.
Under the town center the state geologic map shows Yorktown Formation and Duplin Formation, Undivided (clay), from the Tertiary, 2.6 to 66 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 57×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Clay. Age: Tertiary, 2.6 to 66 million years old. About 13 mi of the line.
Metadiorite. Age: Neoproterozoic to Paleozoic, 252 to 1,000 million years old. About 6 mi of the line.
Gravel, sand. Age: Tertiary, 2.6 to 66 million years old. About 3 mi of the line.
Slate, argillite. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 2 mi of the line.
Granitic. Age: Early Pennsylvanian to Permian, 270 to 320 million years old. About 0.6 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 South Weldon reaches Albemarle Sound and the Atlantic Ocean by way of the Mush Island Gut and the Roanoke: about 120 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of South Weldon; river miles along the main stem, rounded.
South Weldon has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 30° in January. About 50 inches of rain fall in a normal year.
On November 14 South Weldon normally reaches 62° and falls to 40°. The record high is 77°, in 1989; the record low 19°, in 1986. The most rain on this date, 1.06 in, fell in 1997.
Normals 1991–2020 and records since 1972 at Roanoke Rapids, 6 miles northwest, 110 ft higher. NOAA, through RCC-ACIS.
