The Winchester 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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18° on Nov. 13, 2019, the coldest reading for this week of the year since 1959. Next is 21° in 1997.
Winchester’s center stands about 160 ft above sea level. Within three miles the land runs from 150 ft to 210 ft, a difference of 60 ft: nearly flat ground.
Under the town center the state geologic map shows Alluvium - Alluvial deposits of local streams or of overbank flow of major streams (coarse-detrital, fine-detrital), from the Holocene, less than 12,000 years old.
The section below crosses 3 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.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 15 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 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 Winchester reaches the Gulf of America by way of the Boeuf, the Ouachita, the Black River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 430 river miles.
190 miles of the trip are on the Boeuf.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Winchester; river miles along the main stem, rounded.
Winchester has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 34° in January. About 55 inches of rain fall in a normal year.
On November 14 Winchester normally reaches 63° and falls to 43°. The record high is 84°, in 1964; the record low 18°, in 2019. The most rain on this date, 0.90 in, fell in 2005.
Normals 1991–2020 and records since 1959 at Rohwer 2 NNE, 12 miles east-northeast. NOAA, through RCC-ACIS.
