The Lewis Run 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.
Chance of showers
Mostly cloudy
Mostly cloudy
Sunny
Mostly sunny
Partly cloudy
Partly cloudy
75° on Nov. 11, 2020, the hottest reading for this week of the year since 1934. Next is 69° in 1956.
Lewis Run’s center stands about 1,620 ft above sea level. Within three miles the land runs from 1,520 ft to 2,300 ft, a difference of 780 ft: hilly country. The highest named summit within 15 miles is Prospect Hill, about 2,460 ft, 14 miles east-southeast.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 21×. 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, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Sandstone, siltstone, shale. Age: Devonian to Carboniferous, 324 to 422 million years old. About 3 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
Siltstone, conglomerate. Age: Late Devonian, 359 to 384 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. 2 smaller units along the line are not listed.
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 Lewis Run reaches the Gulf of America by way of East Branch Tunungwant Creek, Tunungwant Creek, the Allegheny, the Ohio and the Mississippi: about 2,210 river miles.
Lake on the way: Allegheny Reservoir.
970 miles of the trip are on the Ohio.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lewis Run; river miles along the main stem, rounded.
Lewis Run has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 13° in January. A normal year brings about 75 inches of snow; with the rain, that comes to about 50 inches of water.
On November 14 Lewis Run normally reaches 47° and falls to 28°. The record high is 67°, in 2010; the record low 3°, in 1996. The most rain on this date, 1.37 in, fell in 1972.
Normals 1991–2020 and records since 1934 at Bradford 4 SW Res 5, 4 miles northwest. NOAA, through RCC-ACIS.
