After a period of cool weather last week, hot weather has returned to Southern California for the next few days.
Offshore flow and high pressure at the surface and aloft will bring well-above-normal temperatures through Thursday. Normal high temperatures are in the 70s and lower 80s. Today through Thursday, expect high temperatures of 10 to 15 degrees above normal inland from the coast through the valleys.
The hottest days should be Wednesday and Thursday when the offshore flow is strongest. Highs will from the middle 80s just inland from the beaches to well into the 90s in the hottest valleys. Some record high temperatures will be challenged.
It is likely to cool down noticeably Friday and over the weekend.
After an earthquake hit in the area, the Bardarbunga volcano erupted Friday in Iceland, causing a temporary no-fly order.
The North Central states face the most adverse weather this Labor Day weekend, in the form of severe storms and tornadoes which will threaten lives and travelers.
As Cristobal loses its tropical characteristics, attention is turning toward the Bay of Campeche for potential development next week.
The Pittsburgh area will have a turbulent stretch of sun and intermittent thunderstorms for the next several days, including storms that could impact Labor Day weekend plans.
An outbreak of severe weather, including tornadoes, will evolve on Sunday from the northern and central Plains to part of the Upper Midwest.
After another big cooldown, warm and humid weather will bounce back in Boston, during the Labor Day weekend.
Pittsburgh, PA (1982)
39 degrees, coldest ever in August.
Anchorage, AK (1989)
A total of 9.6 inches of rain -- wettest August on record.
New England (1816)
"Year in which there was no summer", otherwise known to weather historians as "1800 and frozen to death" killing frost once again damages sparse corn corp in northern New England...loss of this and other crops led to severe famine in much of New England that winter...and helped spur western migration in spring of 1817.