A tropical weather system bringing rain to parts of the Southwest this weekend could push north to the Bay Area on Monday and Tuesday, according to the National Weather Service.
The "monsoonal" air mass today brought heavy rain to portions of Arizona, and scattered dry lightning was reported in the hills around San Diego, forecaster Diana Henderson said.
Some scattered light showers and a slight chance of thunderstorms could reach parts of the Bay Area on Monday and last into Tuesday, Henderson said.
High clouds associated with the system today were reported around the southern portion of Monterey County, she said.
A tropical storm system coming from the south is not unusual for the Bay Area at this time of year, Henderson said.