The Alamo 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° on Nov. 12, 1911, the coldest reading for this week of the year since 1887. Next is 8° in 1933.
Alamo’s center stands about 790 ft above sea level. Within three miles the land runs from 730 ft to 1,020 ft, a difference of 290 ft: rolling country.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 51×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Carboniferous, 324 to 359 million years old. About 24 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 Alamo reaches Lake Michigan by way of Sand Creek, Pine Creek and the Kalamazoo: about 60 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Alamo; river miles along the main stem, rounded.
Alamo has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 18° in January. About 33 inches of rain fall in a normal year.
On November 14 Alamo normally reaches 48° and falls to 33°. The record high is 68°, in 1953; the record low 10°, in 1986. The most rain on this date, 1.18 in, fell in 1957.
Normals 1991–2020 and records since 1887 from the Kalamazoo Area threaded record (Kalamazoo Battle Creek International Airport, 13 miles southeast). NOAA, through RCC-ACIS.
