The Warner 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.
75° on Nov. 11, 2020, the hottest reading for this week of the year since 1996. Next is 70° in 2022.
Warner’s center stands about 450 ft above sea level. Within three miles the land runs from 410 ft to 1,530 ft, a difference of 1,120 ft: steep hill country. The highest named summit within 15 miles is Mount Kearsarge, about 2,910 ft, 7 miles north-northwest.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Quartz-diorite, tonalite, granodiorite. Age: Early Devonian, 394 to 422 million years old. About 8 mi of the line.
Pelitic-schist, metasandstone. Age: Silurian, 434 to 445 million years old. About 4 mi of the line.
Granodiorite. Age: Early Devonian, 394 to 422 million years old. About 3 mi of the line.
Granofels, calc-silicate-rock, pelitic-schist. Age: Silurian, 422 to 428 million years old. About 3 mi of the line.
Granite. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
Metagraywacke. Age: Early Devonian, 410 to 414 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. 3 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 Warner reaches the Atlantic Ocean by way of the Warner, the Contoocook and the Merrimack: about 120 river miles.
100 miles of the trip are on the Merrimack.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Warner; river miles along the main stem, rounded.
Warner has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 13° in January. About 49 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1996 at Salisbury, 7 miles northeast, 100 ft higher. NOAA, through RCC-ACIS.