The Floyd 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.
87° on Nov. 13, 1955, the hottest reading for this week of the year since 1892. Next is 85° in 1964.
Floyd’s center stands about 410 ft above sea level. Within three miles the land runs from 290 ft to 640 ft, a difference of 350 ft: rolling country. The highest named summit within 15 miles is Lookout Mountain, about 890 ft, 11 miles north-northeast.
Under the town center the state geologic map shows Atoka Formation - Middle part (sandstone, shale), from the Carboniferous, 299 to 324 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 31×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 15 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Sandstone, black-shale. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 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 Floyd reaches the Gulf of America by way of Mill Branch, Little Bull Creek, Bull Creek, Cane Creek, Cypress Bayou, the Bayou Des Arc, the White River and the Mississippi: about 820 river miles.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Floyd; river miles along the main stem, rounded.
Floyd has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 30° in January. About 52 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Floyd normally reaches 62° and falls to 41°. The record high is 83°, in 1964; the record low 16°, in 1940. The most rain on this date, 2.77 in, fell in 1957.
Normals 1991–2020 and records since 1892 at Searcy, 15 miles east-northeast, 180 ft lower. NOAA, through RCC-ACIS.