The Cooperton 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.
Showers likely
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Mostly sunny; warmer
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92° on Nov. 17, 2017, the hottest reading for this week of the year since 1910. Next is 86° in 2021.
Cooperton’s center stands about 1,550 ft above sea level. Within three miles the land runs from 1,460 ft to 1,890 ft, a difference of 430 ft: hilly country. The highest named summit within 15 miles is Mount Pinchot, about 2,430 ft, 7 miles southeast.
Under the town center the state geologic map shows Hennessey Group (shale), from the Permian, 252 to 299 million years old.
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 23×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Permian, 252 to 299 million years old. About 16 mi of the line.
Granite. Age: Middle Cambrian, 497 to 521 million years old. About 6 mi of the line.
Gabbro, anorthosite, diorite. Age: Early Cambrian, 521 to 542 million years old. About 2 mi of the line.
Conglomerate. Age: Permian, 252 to 299 million years old. About 0.4 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 Cooperton reaches the Gulf of America by way of Rainy Mountain Creek, the Washita, the Red River, the Atchafalaya and the Lower Atchafalaya: about 1,200 river miles.
680 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cooperton; river miles along the main stem, rounded.
Cooperton has a humid subtropical climate. Summer afternoons average 97° in July; winter nights fall to about 28° in January. About 28 inches of rain fall in a normal year.
On November 14 Cooperton normally reaches 62° and falls to 39°. The record high is 84°, in 2020; the record low 14°, in 1916. The most rain on this date, 1.47 in, fell in 1924.
Normals 1991–2020 and records since 1910 at Hobart Municipal Airport, 13 miles northwest. NOAA, through RCC-ACIS.
