The Seaboard 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.
Mostly sunny
Mostly sunny; warmer
Sunny
Partly cloudy
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Mostly sunny
6.31 inches of rain fell in two days, the most for this week of the year since records began in 1948. The next wettest, 5.15 inches, fell in 2009.
Seaboard’s center stands about 130 ft above sea level. Within three miles the land runs from 100 ft to 180 ft, a difference of 80 ft: gently rolling country.
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 50×. 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 17 mi of the line.
Fine-detrital, coarse-detrital. Age: Tertiary to Quaternary, less than 66 million years old. About 2 mi of the line.
Gravel. Age: Tertiary, 2.6 to 66 million years old. About 2 mi of the line.
Unconsolidated. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Granite, granodiorite. Age: Proterozoic, 542 to 2,500 million years old. About 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 Seaboard reaches Albemarle Sound and the Atlantic Ocean by way of Ivy Creek, Cypress Creek, the Meherrin and the Chowan: about 100 river miles.
55 miles of the trip are on the Meherrin.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Seaboard; river miles along the main stem, rounded.
Seaboard has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 29° in January. A normal year brings about 5 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 Seaboard normally reaches 62° and falls to 38°. The record high is 81°, in 1989; the record low 18°, in 1976. The most rain on this date, 1.14 in, fell in 2008.
Normals 1991–2020 and records since 1948 at Jackson, 7 miles south. NOAA, through RCC-ACIS.
