The Urbana 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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82° on Nov. 11, 1989, the hottest reading for this week of the year since 1894. Next is 82° in 1999.
Urbana’s center stands about 950 ft above sea level. Within three miles the land runs from 900 ft to 1,020 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Kansas City Group (limestone, 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 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.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 17 mi of the line.
Shale, limestone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
Shale, limestone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million 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 Urbana reaches the Gulf of America by way of the Elk River, the Neosho, the Arkansas and the Mississippi: about 1,250 river miles.
Lakes on the way: Murray Lake and Ozark Lake.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Urbana; river miles along the main stem, rounded.
Urbana has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 23° in January. About 41 inches of rain fall in a normal year.
On November 14 Urbana normally reaches 59° and falls to 36°. The record high is 80°, in 1899; the record low 10°, in 1959. The most rain on this date, 1.73 in, fell in 1985.
Normals 1991–2020 and records since 1894 at Chanute Martin Johnson Airport, 9 miles north-northwest. NOAA, through RCC-ACIS.
