The Koppel 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.
Mostly cloudy
Chance of showers; warmer
Mostly cloudy
Partly cloudy
Sunny
Partly cloudy
Mostly sunny
81° on Nov. 11, 2020, the hottest reading for this week of the year since 1961. Next is 75° in 2022.
Koppel’s center stands about 890 ft above sea level. Within three miles the land runs from 740 ft to 1,270 ft, a difference of 530 ft: hilly country. The highest named summit within 15 miles is Big Knob, about 1,400 ft, 10 miles southeast.
Under the town center the state geologic map shows Pottsville Formation (sandstone, conglomerate), from the Carboniferous, 299 to 324 million 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 30×. 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. Age: Carboniferous, 299 to 324 million years old. About 11 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 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 Koppel reaches the Gulf of America by way of the Beaver, the Ohio and the Mississippi: about 1,930 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 Koppel; river miles along the main stem, rounded.
Koppel has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 21° in January. About 41 inches of rain fall in a normal year.
On November 14 Koppel normally reaches 51° and falls to 34°. The record high is 71°, in 1994; the record low 8°, in 1986. The most rain on this date, 0.89 in, fell in 1997.
Normals 1991–2020 and records since 1961 at Montgomery Lock & Dam, 13 miles south-southwest, 200 ft lower. NOAA, through RCC-ACIS.
