The same weather system responsible for searing heat over the southern Plains will build toward the Southwest and Southern California in the coming days.
While not likely to bring triple-digit heat to Downtown Los Angeles, temperatures are forecast to climb well into the 80s in the city and could reach 90 degrees for a couple of days next week.
Triple-digit heat will nose into the Inland Empire, and even some of the beaches may bask in 80-degree warmth.
Temperatures could reach 110 degrees in Palm Springs, Las Vegas and Phoenix during the middle of next week.
The temperature trend will be on the rise starting this weekend in the Southwest.
Inland Storms to Wane
Meanwhile, as high pressure builds at most levels of the atmosphere, the amount of shower and thunderstorm activity, known to locals as the monsoon, will tend to diminish bringing significantly less rainfall.
At the very least, the storms will become much more spotty in nature.
High pressure in the upper levels of the atmosphere represents a zone of very warm air aloft.
According to Western Weather Expert Ken Clark, "When it is warm aloft, the atmosphere is considered to be "stable." It is more difficult to get thunderstorms to fire up in such a situation."
Also, when it gets warm aloft, it is often hot near ground level during the summer months.
"We had this sort of weather pattern earlier in July over the interior Southwest," Clark said. "This time it looks like more of the heat will try to reach coastal areas."
Even with the high building, Clark still expects a few very widely separated storms to pop up over the mountains, due to the intense heat over the interior.
The pattern change will be marked by an unusually far-reaching outbreak of severe weather from the northern Plains late this week to the Midwest and Northeast U.S. this weekend.
Hot Weekend for the Northwest
The temperature spike will not wait until next week in the Northwest.
Upper-level high pressure will build over Washington and Oregon rather quickly this weekend.
Temperatures could flirt with 100 degrees in Portland and may reach 90 in part of the Seattle metro area on Saturday.
The coastal Northwest, like much of coastal California, has been experiencing an extended period of below-normal high temperatures, due to a persistent onshore flow of air from the Pacific Ocean.
Typically, this flow starts to ease moving forward through July.
More waves of Arctic air are in the offing for Cleveland this week.
The coldest air of the season so far is moving in for the middle of this week around New York City, in the wake of Tuesday's snowstorm. A new storm will move in this weekend.
After ending the weekend on a slick note, more cold air will dominate weather headlines this week.
The coldest air of the season so far is moving in for the middle of this week around Harrisburg, in the wake of Tuesday's snowstorm. A new storm will move in this weekend.
Snow has begun to move into the Northeast, impacting the I-95 corridor.
Bend, OR (1919)
28" snowfall set state 24 hour mark.
Baltimore City (1878)
28.73" barometric pressure - Dec. record.
Western New York (1995)
Heavy lake-effect snow brought 37.9" of snow to the Buffalo airport in 24 hours. This broke the old 24-hour record of 25.3" set in January 10-11, 1982. Other months included: Buffalo (Delaware Park) 33" Buffalo (Allentown) 33" Williamsville 32" Clarence 31" North Buffalo 27"