The Pomona 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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12° on Nov. 12, 2019, the coldest reading for this week of the year since 1996. Next is 14° in 2014.
Pomona’s center stands about 1,240 ft above sea level. Within three miles the land runs from 1,110 ft to 1,300 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is King Mountain, about 1,520 ft, 9 miles north.
Under the town center the state geologic map shows Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite (dolostone), from the Early Ordovician, 471 to 487 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 39×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 24 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 Pomona reaches the Gulf of America by way of Little Creek, the Eleven Point, the Black River, the White River and the Mississippi: about 1,080 river miles.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Pomona; river miles along the main stem, rounded.
Pomona has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 24° in January. About 47 inches of rain fall in a normal year.
On November 14 Pomona normally reaches 58° and falls to 36°. The record high is 77°, in 2025; the record low 14°, in 2014. The most rain on this date, 2.41 in, fell in 2005.
Normals 1991–2020 and records since 1996 at West Plains Municipal Airport, here. NOAA, through RCC-ACIS.
