The Omer 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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75° on Nov. 11, 2020, the hottest reading for this week of the year since 1895. Next is 75° in 2022.
Omer’s center stands about 620 ft above sea level. Within three miles the land runs from 590 ft to 700 ft, a difference of 110 ft: gently rolling country.
Under the town center the state geologic map shows Michigan Formation (shale), from the Carboniferous, 324 to 359 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 60×. 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 12 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 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.
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.
Omer has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 14° in January. About 31 inches of rain fall in a normal year.
On November 14 Omer normally reaches 45° and falls to 31°. The record high is 65°, in 1989; the record low 9°, in 1986. The most rain on this date, 1.12 in, fell in 1957.
Normals 1991–2020 and records since 1895 at Standish 4 NE, 3 miles southwest. NOAA, through RCC-ACIS.
