Around this time of year, the nights lengthen, cool air begins to pool over Canada, and the long shadow of winter looms over much of the country.
High temperatures the first part of this week reached record levels, with some places soaring well into the 90s and lower 100s clear to the coast. Places such as San Francisco had their warmest temperatures in over a year, and some spots even reached near 110 degrees.
As the strong high pressure responsible for this extreme heat weakens and pushes off to the south, cooler air on a westerly wind will continue to filter in from the Pacific, allowing temperatures to become gradually cooler. This cooling trend is expected to continue.
A storm system developing well offshore will start to approach the coast of California this weekend.
Clouds will start to increase across the northern and central parts of the state later Sunday, before filtering into the rest of the state early next week. A few showers are even possible near the coast.
Temperatures across central and Southern California will drop to as much as 5-10 degrees below normal by Monday and Tuesday, especially from San Francisco southward to Los Angeles and San Diego.
The cool and increasingly showery weather should last into at least the middle part of next week as the low drifts over the state.
Stay with AccuWeather.com for the latest on this cooldown and the potentially showery weather ahead for next week.
Tropical Depression Eight could become a tropical storm while brushing the North Carolina coast with rough surf, downpours and locally gusty thunderstorms into midweek.
Tropical Depression Nine developed just south of Florida on Sunday and will turn toward the northeastern Gulf Coast of the United States later this week.
Another strong tropical disturbance has moved off the coast of Africa and bears watching for strengthening and impact on the Caribbean and the United States during September.
Two tropical systems, Madeline and Lester, could pose hazards to Hawaii from the middle of the week into Labor Day weekend.
Though the summer season is winding down, forecasters are predicting a warm start to fall across the Northeast — a weather pattern that could spell bad news for fall foliage lovers.
The worst thing that people who live along coastlines can do is not to prepare for tropical storms and hurricanes.
West Virginia (1989)
Lightning sets numerous house and trailer fires. Firefighters could not keep up with all the fires that were burning.
Incredible "snow" hurricane whitened parts of the Catskills.
Santa Cruz (1929)
Coastal Steamer San Juan (over 2,000 tons) was rammed off Pigeon Point near Santa Cruz, CA by the oil tanker S.C.T. Doss which was proceeding at "excessive speed in fog without sounding fog signals". 70 passengers and crew of San Juan drowned.