The Lewisport 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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10° on Nov. 13, 2019, the coldest reading for this week of the year since 1902. Next is 14° in 1986.
Lewisport’s center stands about 400 ft above sea level. Within three miles the land runs from 350 ft to 550 ft, a difference of 200 ft: gently rolling country. The highest named summit within 15 miles is Lutgring Hill, about 740 ft, 13 miles east.
Under the town center the state geologic map shows Alluvium (sand, silt), from the Pleistocene to Holocene, less than 2.6 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 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.
Sand, silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 13 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 9 mi of the line.
Siltstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 0.3 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 Lewisport reaches the Gulf of America by way of the Ohio and the Mississippi: about 1,210 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lewisport; river miles along the main stem, rounded.
Lewisport has a humid subtropical climate. Summer afternoons average 85° in July; winter nights fall to about 26° in January. About 51 inches of rain fall in a normal year.
On November 14 Lewisport normally reaches 55° and falls to 37°. The record high is 80°, in 1955; the record low 12°, in 2019. The most rain on this date, 3.62 in, fell in 1957.
Normals 1991–2020 and records since 1902 at Tell City, 7 miles east-northeast. NOAA, through RCC-ACIS.
