The Lynnville 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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3.83 inches of rain fell in two days, the most for this week of the year since records began in 1890. The next wettest, 3.35 inches, fell in 1915.
Lynnville’s center stands about 760 ft above sea level. Within three miles the land runs from 710 ft to 1,060 ft, a difference of 350 ft: rolling country. The highest named summit within 15 miles is Welch Hill, about 1,250 ft, 15 miles east.
Under the town center the state geologic map shows Nashville Group; Bigby-Cannon Limestone and Hermitage Formation (limestone, calcarenite), from the Ordovician, 445 to 487 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 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone, calcarenite. Age: Ordovician, 445 to 487 million years old. About 13 mi of the line.
Chert. Age: Carboniferous, 324 to 359 million years old. About 6 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 2 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 Lynnville reaches the Gulf of America by way of Robertson Fork Creek, Lynn Creek, Richland Creek, the Elk River, the Tennessee, the Ohio and the Mississippi: about 1,390 river miles.
Lakes on the way: Guntersville Lake, White Lake (historical) and Pickwick Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lynnville; river miles along the main stem, rounded.
Lynnville has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 27° in January. About 56 inches of rain fall in a normal year.
On November 14 Lynnville normally reaches 63° and falls to 36°. The record high is 78°, in 1985; the record low 17°, in 1986. The most rain on this date, 2.87 in, fell in 1915.
Normals 1991–2020 and records since 1890 at Lewisburg Experiment Sta, 11 miles east-northeast. NOAA, through RCC-ACIS.
