San Mateo Point CA to the Mexican Border and out 30 NM Marine Forecast
| Tonight...Wind Nw 10 Kt. Seas 3 To 4 Ft. Wave Detail: Nw 2 Ft At 4 Seconds, W 3 Ft At 12 Seconds And S 1 Foot At 14 Seconds. |
| Thu...Wind W 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 2 Ft At 4 Seconds, W 3 Ft At 7 Seconds And S 1 Foot At 16 Seconds. |
| Thu Night...Wind W 10 Kt In The Evening...Becoming Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 3 Ft At 7 Seconds And S 1 Foot At 17 Seconds. |
| Fri...Wind Variable Less Than 10 Kt...Becoming W 10 Kt In The Afternoon. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 3 Ft At 12 Seconds And S 1 Foot At 15 Seconds. |
| Fri Night...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 3 Ft At 12 Seconds And S 2 Ft At 16 Seconds. |
| Sat...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 13 Seconds And S 2 Ft At 15 Seconds. |
| Sat Night...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 3 Ft At 12 Seconds And S 2 Ft At 15 Seconds. |
| Sun...Wind Variable Less Than 10 Kt. Seas 3 To 4 Ft. Wave Detail: W 3 Ft At 12 Seconds And S 2 Ft At 14 Seconds. |
| Sun Night...Wind Variable Less Than 10 Kt. Seas 3 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 3 Ft At 12 Seconds And S 2 Ft At 14 Seconds. |
| Mon...Wind Variable Less Than 10 Kt. Seas 3 Ft. Wave Detail: W 1 Foot At 4 Seconds, S 2 Ft At 14 Seconds And W 2 Ft At 15 Seconds. |
| Mon Night...Wind Variable Less Than 10 Kt. Seas 3 Ft. Wave Detail: W 1 Foot At 4 Seconds, W 2 Ft At 14 Seconds And S 2 Ft At 14 Seconds. |
| Area Forecast Discussion National Weather Service San Diego CA 1214pm PDT Tuesday August 11 2026 Synopsis Another round of monsoon thunderstorms is expected for the mountains on Tuesday with locally heavy rainfall rates. An isolated storm or two may Probability of Precipitation up over the mountains again Wednesday, but otherwise drier conditions are expected for late week into the weekend. A cooling trend will bring below normal temperatures to the region from Wednesday onward along with breezy conditions for the mountains and deserts. For the coastal basin, the marine layer is expected to deepen each day through the weekend. For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties Today through tomorrow night... Recycled monsoonal moisture is continuing to stream up over the region out of the southeast around the high positioned over the desert southwest. Given the amount of instability and abundance of moisture, there will be around a 40 to 50 percent chance of afternoon showers and thunderstorms developing, with the San Bernardinos mostly at play. Some of these storms will be capable of producing rainfall rates of 0.50 inches per hour. Expect that some of these storms will also produce strong and gusty winds due to outflows and high DCAPE values exceeding 1000 J/kg. There could also be some small hail associated with these storms. This will continue into the evening hours, with storms beginning to move towards the northeast by later in the day as mid-level flow begins to shift to being more out of a southwesterly direction. There may also be some isolated areas of flash flooding as a result of the storms, as they may rapidly intensity along the mountain/desert interface, especially where there are currently some SBCAPE values of 4000 J/kg, with temperatures/dews of low 90s over low 70s within the Coachella Valley. These showers and storms will likely make their way into the high deserts with skies continuing to clear as these showers/storms dissipate and move out of the CWA. The marine layer will be rather dispersed and then fill back in by late into the night. As troughing continues to influence the region from upstream, with should allow bases to slightly rise into the morning hours tomorrow. Thursday through Wednesday... Troughing from upstream will continue to influence the region with gradually cooling temperatures through the end of the week, and temperatures becoming as much as 10 degrees below the seasonal average for some areas. This will also increase surface gusty winds, especially during the afternoon for the high deserts, and mountain canyons/passes by later in the week, with gusts approaching 60 mph within Gorgonio Pass. There will also become more persistence with onshore flow, with the marine layer becoming more prevalent overnight and into the morning hours. Going into early next week, ensembles reflect a breakdown of the troughing over the E Pacific waters and thus a return to more seasonal temperatures, while remaining dry. Marine No hazardous marine conditions are expected through Saturday. Beaches High tides will exceed 7 feet this evening and again Wednesday evening between 800-930 PM, resulting in minor tidal overflow of low- lying areas along the beach. Surf will be low and is not expected to add much to the flooding potential. Check the Coastal Flood Advisory for details. Skywarn Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions. NOAA San Diego CA Office: Watches - Warnings - Advisories CA...Coastal Flood Advisory until 11pm PDT Wednesday for Orange County Coastal Areas-San Diego County Coastal Areas. PZ...None. |
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