It was an eventful weekend weather wise with monsoonal conditions continuing as we kick off a new workweek.
A dome of high pressure settling over the southwest will continue to usher in low-level moisture from the Gulf of California, increasing high clouds and bringing the chance for pop-up thunderstorms this afternoon for the eastern half of the county. The chance for thunderstorm activity is slim and limited to the mountains but activity could be associated with quick downpours and gusty winds.
Inland and mountain communities under 5,000' will face a heat advisory tomorrow morning at 10, and the deserts will see an excessive heat warning. Both of those expire Wednesday at 8 p.m.
Marine layer clouds continue to keep the immediate coast comfortable in the mid 70s. We'll have better clearing along the beaches and coast this afternoon before cloud cover rolls back this evening.
The inland valleys, mountains and deserts will keep pushing towards the 90s and 100s, with daytime highs up to 7-8 degrees above normal.
A new Excessive Heat Warning takes effect for the deserts starting Tuesday at noon lasting through Wednesday night.
It'll feel less muggy tomorrow, but daytime highs will climb a few degrees through Wednesday. Towards the end of the week, a trough brewing off of the Pacific Northwest may have an influence on the southwest, cooling us down slightly.
Tuesday's Highs:
Coast: 75-88
Inland: 89-99
Mountains: 90-100
Deserts: 108-115
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