The Eva 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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78° on Nov. 15, 1999, the hottest reading for this week of the year since 1994. Next is 76° in 2010.
Eva’s center stands about 1,090 ft above sea level. Within three miles the land runs from 750 ft to 1,150 ft, a difference of 400 ft: hilly country. The highest named summit within 15 miles is Lehman Point, about 1,280 ft, 14 miles north-northeast.
Under the town center the state geologic map shows Pottsville Formation (lower part) (sandstone), from the Carboniferous, 299 to 324 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 31×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 20 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 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 Eva reaches the Gulf of America by way of Flint Creek, the Tennessee, the Ohio and the Mississippi: about 1,380 river miles.
Lakes on the way: Guntersville Lake, White Lake (historical) and Pickwick Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Eva; river miles along the main stem, rounded.
Eva has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 29° in January. About 62 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1994 at Cullman 1.5 SE/Kress Farms, 9 miles south-southwest, 280 ft lower. NOAA, through RCC-ACIS.
