The Oak Grove Heights 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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5.81 inches of rain fell in two days, the most for this week of the year since records began in 1979. The next wettest, 4.02 inches, fell in 2011.
Oak Grove Heights’s center stands about 340 ft above sea level. Within three miles the land runs from 280 ft to 460 ft, a difference of 180 ft: gently rolling country.
Under the town center the state geologic map shows Silt and sand (silt, sand), from the Pleistocene, less than 2.6 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 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 13 mi of the line.
Silt, sand. Age: Pleistocene, less than 2.6 million years old. About 8 mi of the line.
Clay, silt, sand. Age: Holocene, less than 12,000 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.
Sand, fine-detrital. Age: Early Eocene, 48 to 56 million years old. About 0.4 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 Oak Grove Heights reaches the Gulf of America by way of Locust Creek, the Saint Francis and the Mississippi: about 890 river miles.
690 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Oak Grove Heights; river miles along the main stem, rounded.
Oak Grove Heights has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 28° in January. About 52 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Oak Grove Heights normally reaches 60° and falls to 39°. The record high is 77°, in 1999; the record low 18°, in 2019. The most rain on this date, 1.73 in, fell in 1993.
Normals 1991–2020 and records since 1979 at Paragould 1 S, 6 miles south. NOAA, through RCC-ACIS.
