The mountain and deserts will see the most action from the monsoonal surge, which may bring rain, thunder and possibly lightning.
Just when residents may have been getting used to sunny days and high temperatures,from the south will bring thunder, rain and possibly lightning through Wednesday evening, forecasters said Tuesday.
The mountains and deserts will see most of the action with the eastern San Gabriel Mountains expected to see some activity of brief downpours and gusty winds. The San Bernardino Mountains may receive heavier rainfall. “Anywhere above 7,000 feet will see measurable rainfall,” said Mark Moede a meteorologist with the National Weather Service. The eastern valleys in San Bernardino County will also see thunderstorms and some lightning was expected. The chances of lightning in Orange County are less likely, but not zero.