The Rosalie 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
Mostly sunny; warmer
Mostly sunny
Partly cloudy
Partly cloudy
Partly cloudy
Showers likely
−9° on Nov. 14, 1959, the coldest reading for this week of the year since 1890. Next is −7° in 1916.
Rosalie’s center stands about 1,360 ft above sea level. Within three miles the land runs from 1,270 ft to 1,460 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Greenhorn Limestone and Graneros Shale (shale, limestone), from the Late Cretaceous, 66 to 100 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 44×. 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, shale. Age: Early Cretaceous, 100 to 145 million years old. About 14 mi of the line.
Shale, limestone. Age: Late Cretaceous, 66 to 100 million years old. About 6 mi of the line.
Shale. Age: Late Cretaceous, 66 to 100 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 Rosalie reaches the Gulf of America by way of Big Slough Creek, the Logan Creek Dredge, the Elkhorn, the Platte, the Missouri and the Mississippi: about 1,870 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Rosalie; river miles along the main stem, rounded.
Rosalie has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 11° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 31 inches of water.
On November 14 Rosalie normally reaches 48° and falls to 26°. The record high is 80°, in 1999; the record low −9°, in 1959. The most rain on this date, 1.36 in, fell in 1926.
Normals 1991–2020 and records since 1890 at West Point, 18 miles southwest. NOAA, through RCC-ACIS.
