Tropical Storm Offshore Brings Heavy Rain, High Waves, and Intense Heat to Southern California
A weakening storm spinning far out in the Pacific Ocean is making its presence felt along the Southern California coast. Even though the storm is located hundreds of miles away, its outer edges have sent damp air, sudden downpours, and rough waves crashing onto local beaches over the holiday weekend.
The sudden shift in weather brought a mix of humid air, dark skies, and ocean hazards. While the rain has helped cool things down temporarily, dangerous beach conditions and an upcoming heatwave are keeping local communities on high alert.
Rain and Power Outages Dampen the Region
The storm system pushed heavy moisture into the area, triggering sudden downpours and lightning storms. The wet weather stretched across several areas, including Ventura, Santa Barbara, Orange, San Diego, Riverside, and San Bernardino counties.
The sudden rainfall prompted local flood alerts for parts of Los Angeles County, covering busy spots like downtown Los Angeles, Santa Monica, Santa Clarita, and the San Fernando Valley. In the city of Arcadia, the heavy showers knocked out electricity, leaving many residents and even a local police station temporarily without power.
The amount of rainfall varied across the region:
- Foothill areas near the Santa Monica and San Gabriel mountains saw the highest totals, with up to 1.5 inches of rain.
- Inland valleys and lower foothill communities received about three-quarters of an inch of water.
- Ventura County recorded roughly a quarter of an inch of rain.
- Santa Barbara County saw only tiny, trace amounts of precipitation.
Despite the sudden wet weather, the rainfall was mostly helpful. The moisture dampens dry plants, which lowers the immediate danger of wildfires without causing major mudslides or widespread flooding. While the heaviest downpours occurred over the weekend, light showers could linger into the early part of the week.
High Heat on the Horizon
Once the rain clouds clear out, residents will have to deal with a different kind of extreme weather. A severe heatwave is expected to settle over Southern California, with temperatures climbing quickly as the week progresses.
By midweek, inland areas could see temperatures soar between 95 and 105 degrees. Coastal regions will also feel the warmth, with temperatures reaching the 80s. There is a very high chance that heat warnings will be issued for coastal areas and valleys, as the scorching weather is not expected to ease up until the end of the week.
Dangerous Ocean Conditions and Beach Closures
The storm far out at sea is also creating major trouble along the shoreline. Strong waves reaching up to seven feet high are slamming into local beaches, creating hazardous conditions for swimmers and surfers.
Powerful rip currents can easily pull even experienced swimmers out into deep water. Large, unpredictable waves also pose a threat of knocking people off coastal rocks or tipping over small boats near the shore.
The rough weather has already caused several disruptions along the coast:
- Malibu beaches were temporarily closed and cleared of visitors due to sudden lightning strikes moving across the water.
- Point Dume experienced severe bluff erosion, where heavy waves damaged coastal cliffs near recently repaired areas. A nearby beach road remains closed due to past damage, though the beach itself is still open.
- Long Beach closed its boardwalk after massive waves began crashing onto the shore. Local leaders have asked visitors to stay away from the peninsula area to keep roads clear and ensure safety.
In addition to the physical dangers of the waves, health officials are warning people to stay out of the ocean entirely for several days. Rainwater runoff washes dirt, trash, and bacteria from the streets down into the ocean, which can cause illness. Swimmers are advised to avoid entering the water to let the pollution clear up.
When visiting the coast, safety experts urge everyone to stay off wet rocks, piers, and jetties. The most important rule to remember during high surf events is to never turn your back on the ocean.