The Gibson 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.
Mostly sunny
Partly cloudy; warmer
Sunny
Partly cloudy
Mostly sunny
Partly cloudy
Mostly sunny
18° on Nov. 12, 2019, the coldest reading for this week of the year since 1975. Next is 19° in 1986.
Gibson’s center stands about 280 ft above sea level. Within three miles the land runs from 250 ft to 560 ft, a difference of 310 ft: rolling country. The highest named summit within 15 miles is Pinnacle Mountain, about 980 ft, 14 miles west-southwest.
Under the town center the state geologic map shows Jackfork Sandstone (sandstone, shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. 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: Holocene, less than 12,000 years old. About 5 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 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. 1 smaller unit along the line are not listed.
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 Gibson reaches the Gulf of America by way of Kellogg Creek, the Bayou Meto, the Arkansas and the Mississippi: about 810 river miles.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Gibson; river miles along the main stem, rounded.
Gibson has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 32° in January. About 52 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Gibson normally reaches 61° and falls to 43°. The record high is 83°, in 1999; the record low 21°, in 1986. The most rain on this date, 2.79 in, fell in 1980.
Normals 1991–2020 and records since 1975 at North Little Rock Wfo, 4 miles south-southwest, 280 ft higher. NOAA, through RCC-ACIS.
