The Greensburg 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.
1° on Nov. 13, 2018, the coldest reading for this week of the year since 1893. Next is 2° in 1916.
Greensburg’s center stands about 2,230 ft above sea level. Within three miles the land runs from 2,190 ft to 2,280 ft, a difference of 90 ft: gently rolling country.
Under the town center the state geologic map shows Dune Sand, from the Pleistocene to Holocene, less than 2.6 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.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 13 mi of the line.
Silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 7 mi of the line.
Sand, silt, clay. Age: Pleistocene, less than 2.6 million years old. About 3 mi of the line.
Sandstone, black-shale. Age: Early Cretaceous, 100 to 145 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 Greensburg reaches the Gulf of America by way of Rattlesnake Creek, the Arkansas and the Mississippi: about 1,520 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 Greensburg; river miles along the main stem, rounded.
Greensburg has a hot-summer humid continental climate. Summer afternoons average 92° in July; winter nights fall to about 19° in January. A normal year brings about 16 inches of snow; with the rain, that comes to about 26 inches of water.
On November 14 Greensburg normally reaches 57° and falls to 30°. The record high is 84°, in 1988; the record low 2°, in 1916. The most rain on this date, 0.60 in, fell in 1926.
Normals 1991–2020 and records since 1893 at Greensburg, here. NOAA, through RCC-ACIS.