The Newburg 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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3.74 inches of rain fell in two days, the most for this week of the year since records began in 1967. The next wettest, 2.25 inches, fell in 1968.
Newburg’s center stands about 1,400 ft above sea level. Within three miles the land runs from 1,100 ft to 2,510 ft, a difference of 1,410 ft: steep hill country. The highest named summit within 15 miles is Ritchey Knob, about 2,880 ft, 13 miles south-southwest.
Under the town center the state geologic map shows Brallier and Harrell Formations, undivided (siltstone, shale), from the Late Devonian, 359 to 384 million years old.
The section below crosses 13 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 12×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 5 mi of the line.
Shale, siltstone, sandstone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Shale, sandstone. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Sandstone, siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Sandstone, siltstone, mudstone. Age: Late Devonian, 359 to 384 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. 7 smaller units along the line are not listed.
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 Newburg reaches Chesapeake Bay and the Atlantic Ocean by way of Mill Run, Beaverdam Branch, the Frankstown Branch Juniata, the Juniata and the Susquehanna: about 230 river miles.
Lake on the way: Lake Aldred.
100 miles of the trip are on the Juniata.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Newburg; river miles along the main stem, rounded.
Newburg has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 19° in January. A normal year brings about 38 inches of snow; with the rain, that comes to about 45 inches of water.
On November 14 Newburg normally reaches 49° and falls to 33°. The record high is 70°, in 2011; the record low 11°, in 1986. The most rain on this date, 1.18 in, fell in 1972.
Normals 1991–2020 and records since 1967 at Altoona 3 W, 3 miles southwest. NOAA, through RCC-ACIS.
