The Byhalia 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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15° on Nov. 13, 2019, the coldest reading for this week of the year since 1996. Next is 19° in 1997.
Byhalia’s center stands about 390 ft above sea level. Within three miles the land runs from 300 ft to 450 ft, a difference of 150 ft: gently rolling country.
Under the town center the state geologic map shows Tallahatta formation and Neshoba sand (claystone, clay), from the Eocene, 34 to 56 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.
Claystone, clay. Age: Eocene, 34 to 56 million years old. About 13 mi of the line.
Sand, clay. Age: Eocene, 34 to 56 million years old. About 11 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 Byhalia reaches the Gulf of America by way of Byhalia Creek, Pigeon Roost Creek, the Coldwater, the Tallahatchie, the Yazoo and the Mississippi: about 810 river miles.
Lake on the way: Arkabutla Lake.
450 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Byhalia; river miles along the main stem, rounded.
Byhalia has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 29° in January. About 57 inches of rain fall in a normal year, with about 1 inch of snow.
Normals 1991–2020 and records since 1996 at Collierville, 14 miles north. NOAA, through RCC-ACIS.
