The Arcadia 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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81° on Nov. 12, 1989, the hottest reading for this week of the year since 1957. Next is 81° in 1999.
Arcadia’s center stands about 840 ft above sea level. Within three miles the land runs from 810 ft to 940 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Breezy Hill, about 1,040 ft, 7 miles south.
Under the town center the state geologic map shows Cherokee Group (sandstone, shale), from the Carboniferous, 299 to 324 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.
Shale, sandstone, siltstone. Age: Carboniferous, 299 to 324 million years old. About 11 mi of the line.
Shale, limestone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 0.7 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 Arcadia reaches the Gulf of America by way of Cox Creek, West Fork Dry Wood Creek, Dry Wood Creek, the Marmaton, the Little Osage, the Osage, the Missouri and the Mississippi: about 1,630 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Arcadia; river miles along the main stem, rounded.
Arcadia has a hot-summer humid continental climate. Summer afternoons average 90° in July; winter nights fall to about 22° in January. A normal year brings about 6 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 Arcadia normally reaches 57° and falls to 36°. The record high is 80°, in 1964; the record low 5°, in 1959. The most rain on this date, 1.00 in, fell in 1958.
Normals 1991–2020 and records since 1957 at Girard, 15 miles southwest, 150 ft higher. NOAA, through RCC-ACIS.
