After a period of cool weather last week, hotter-than-normal weather has returned to Southern California through Thursday.
Offshore flow and high pressure at the surface and aloft will bring well-above-normal temperatures through Thursday. Normal high temperatures are in the upper 70s and low 80s.
Through Thursday, expect high temperatures of 10 to 15 degrees above normal inland from the coast through the valleys.
Wednesday and Thursday will be the hottest when the offshore flow is strongest. Highs will range from the upper 80s and low 90s along the coastal plain, including downtown, to the high 90s in the valleys.
Some record high temperatures will be challenged Thursday.
It is likely to cool down noticeably Friday and over the weekend.
A train of storms will continue to deliver rain to the Pacific Northwest with one particular storm this weekend likely to be the strongest of the bunch.
A major storm centered on Christmas Eve will affect the Midwest and East with areas of strong winds, heavy snow, torrential rain and thunderstorms.
With many winter storms lined up, snow will create a wintry setting for Christmas in some areas.
Several fast-moving storm systems will bring unsettled weather to the British Isles and northern Europe this week.
A potent cold front will bring much cooler air and a flood threat to parts of South America this weekend.
In a rare event late last week, visitors to Grand Canyon National Park were able to see fog roll into the canyon like a tide, blanketing the popular tourist attraction.
New York City (1917)
Central Park: -1 degrees, earliest zero reading.
Southern Illinois (1957)
A tornado tracked across Jackson, Williamson and Franklin counties, killing 11 people.
Record snowfall: Spokane, WA - 20.9"; Yakima, WA - 21.4".