The East Port Orchard 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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4.20 inches of rain fell in two days, the most for this week of the year since records began in 1899. The next wettest, 3.56 inches, fell in 1983.
East Port Orchard’s center stands about 360 ft above sea level. Within three miles the land runs from 10 ft to 430 ft, a difference of 420 ft: hilly country. Open water lies within three miles. The highest named summit within 15 miles is Gold Mountain, about 1,770 ft, 8 miles west-northwest.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 13×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Basalt. Age: Early Paleocene to Middle Eocene, 40 to 64 million years old. About 6 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 3 mi of the line.
Fine-detrital, coarse-detrital. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 1 mi of the line.
Quartz-monzonite, granite, basalt. Age: Eocene to Early Pliocene, 3.6 to 56 million years old. About 0.6 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.
Rain that falls on East Port Orchard runs straight into Puget Sound and the Pacific Ocean.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of East Port Orchard; river miles along the main stem, rounded.
East Port Orchard has a warm-summer Mediterranean climate. Summer afternoons average 77° in August; winter nights fall to about 35° in February. About 57 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 East Port Orchard normally reaches 52° and falls to 39°. The record high is 68°, in 1901; the record low 12°, in 1955. The most rain on this date, 2.45 in, fell in 2001.
Normals 1991–2020 and records since 1899 at Bremerton, 5 miles northwest, 240 ft lower. NOAA, through RCC-ACIS.
