The Morgan Farm 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.
90° on Nov. 11, 2024, the hottest reading for this week of the year since 1964. Next is 89° in 2006.
Morgan Farm’s center stands about 50 ft above sea level. Within three miles the land runs from 50 ft to 80 ft, a difference of 30 ft: nearly flat ground.
Under the town center the state geologic map shows Beaumont Formation, areas predominantly sand, from the Pleistocene, less than 2.6 million years old.
The section below crosses 3 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, less than 2.6 million years old. About 13 mi of the line.
Clay, silt. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.
Silt, sand, clay. Age: Pleistocene, less than 2.6 million years old. About 2 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 Morgan Farm reaches the Gulf of America by way of Chiltipin Creek and the Aransas: about 35 river miles.
Often dry. About 30% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Morgan Farm; river miles along the main stem, rounded.
Morgan Farm has a humid subtropical climate. Summer afternoons average 94° in August; winter nights fall to about 44° in January. About 36 inches of rain fall in a normal year.
On November 14 Morgan Farm normally reaches 75° and falls to 53°. The record high is 87°, in 2024; the record low 28°, in 2018. The most rain on this date, 0.05 in, fell in 1998.
Normals 1991–2020 and records since 1964 at Welder W'Life Foundation, 11 miles northeast. NOAA, through RCC-ACIS.