Despite average temperatures early in the month of July, warmer temperatures near 100 degrees are beginning to slide across California and the Central Valley.
That heat will be felt next week, when portions of inland Southern California could rise above 110 degrees. The onset of warmer temperatures will first be marked by phrases of clouds and humidity.
Monsoon moisture moves in soon
Friday is another seasonable day for the Central Valley and Central California with high temperatures in the 90s and low 100s for much of the Central Valley. There is nothing out of the ordinary here — no clouds or moisture will have arrived yet.
That will not be the case for the days following. Across the western and central United States, another “heat dome” is beginning to take shape. A heat dome is a self-reenforcing mass of high pressure in the upper atmosphere that dominates the sky for thousands of miles. Just as a heat dome brought record-hot temps to the eastern U.S. last week, this heat dome – on our side of the country – will bring hot temps our way.
The heat dome will begin to take shape this weekend, with its center located around Wyoming by Sunday and early next week. Given its location to our northeast, it will drive a warm southeasterly breeze – carrying moisture from the Pacific Ocean – across California and the southwestern U.S…