Early-afternoon thunderstorms produced “sporadic” cloud-to-ground lightning in the Big Bear area Sunday, but no significant rain, according to the National Weather Service.
Farther north in the Mojave Desert, heavy rain was reported in the late afternoon near Nipton, prompting a flood advisory for that part of San Bernardino County and south-central Clark County across the Nevada line.
The chance of showers thunderstorms in the mountains and deserts will continue for a few more days, and could spread into the Inland valleys on Wednesday, forecasters say.
Even if it doesn’t rain, the weather pattern will keep Riverside and San Bernardino counties hot and humid all week.
Highs on Sunday surpassed 100 in a few areas, including Lake Elsinore and Beaumont, but were in the upper 80s in places like Corona and Temecula, the National Weather Service reported. All through the work week, highs across the Inland valleys should stay in the 90s, but could return to triple digits on Saturday.
In the mountains and deserts, the chance for rainfall will increase Tuesday and Wednesday, the Weather Service is predicting. Things should dry out again later in the week.
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