The Ozark 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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16° on Nov. 12, 2019, the coldest reading for this week of the year since 1994. Next is 20° in 1997.
Ozark’s center stands about 410 ft above sea level. Within three miles the land runs from 340 ft to 830 ft, a difference of 490 ft: hilly country. The highest named summit within 15 miles is Carter Mountain, about 2,170 ft, 9 miles north-northeast.
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 14×. 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, black-shale. Age: Carboniferous, 299 to 324 million years old. About 12 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 9 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.8 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 Ozark reaches the Gulf of America by way of Ozark Lake, the Arkansas and the Mississippi: about 870 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 Ozark; river miles along the main stem, rounded.
Ozark has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 28° in January. About 52 inches of rain fall in a normal year.
On November 14 Ozark normally reaches 61° and falls to 39°. The record high is 79°, in 2011; the record low 19°, in 2019. The most rain on this date, 0.82 in, fell in 1994.
Normals 1991–2020 and records since 1994 at Ozark 2, 3 miles northwest, 420 ft higher. NOAA, through RCC-ACIS.
