The Island Walk 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.
Partly cloudy
Sunny; warmer
Mostly sunny
Partly cloudy
Partly cloudy
Partly cloudy
Partly cloudy
3.55 inches of rain fell in two days, the most for this week of the year since records began in 1942. The next wettest, 2.43 inches, fell in 1994.
Island Walk’s center stands about 17 ft above sea level. Within three miles the land runs from 10 ft to 50 ft, a difference of 40 ft: nearly flat ground.
Under the town center the state geologic map shows Tamiami Formation (sand, limestone, clay), from the Late Pliocene, 2.6 to 3.6 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 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, limestone, clay. Age: Late Pliocene, 2.6 to 3.6 million years old. About 19 mi of the line.
Sand, limestone. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 1 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 0.7 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.
Island Walk has a humid subtropical climate. Summer afternoons average 91° in August; winter nights fall to about 52° in January. About 61 inches of rain fall in a normal year.
On November 14 Island Walk normally reaches 81° and falls to 60°. The record high is 91°, in 1993; the record low 39°, in 1968. The most rain on this date, 1.88 in, fell in 1969.
Normals 1991–2020 and records since 1942 at Naples, 6 miles south-southeast. NOAA, through RCC-ACIS.
