Big surf through Tuesday, followed by monsoonal moisture, humidity

A south swell will produce waves in the 6’ to 9’ range at many North County beaches through Tuesday, with smaller but strong sets in South County.

The swell also will generate strong rip and side currents, creating hazardous conditions for swimmers and surfers.

Some of the wave energy will come from Tropical Storm Aletta, which reached hurricane strength off the west coast of Mexico last week. A second system, Hurricane Bud, has since developed in the same region and is expected to send moist, humid air streaming into Southern California late this week.

The National Weather Service says that Bud could trigger an unusually early start to the monsoon season in San Diego County, lifting temperatures in the desert and possibly sparking wild thunderstorms in the mountains.

Such conditions also will increase the risk of wildfires. Much of the county has received only about one-third of its seasonal rainfall.

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