San Clemente Island CA to Guadalupe Island from 60 NM offshore west to 120W Offshore Forecast
| Tonight...W To Nw Winds 5 To 10 Kt. Seas 4 To 6 Ft. |
| Fri...Nw Winds 5 To 10 Kt. Seas 4 To 5 Ft. |
| Fri Night...Nw Winds 10 To 15 Kt. Seas 4 To 5 Ft. |
| Sat...Nw Winds 10 To 15 Kt. Seas 4 To 5 Ft. |
| Sat Night...Nw Winds 10 To 15 Kt. Seas 4 To 5 Ft. |
| Sun...Nw Winds 5 To 15 Kt, Increasing To 10 To 20 Kt. Seas 4 To 7 Ft. |
| Sun Night...Nw Winds 10 To 20 Kt, Diminishing To 5 To 15 Kt. Seas 4 To 8 Ft. |
| Mon...Nw Winds 10 To 15 Kt. Seas 5 To 8 Ft. |
| Mon Night...Nw Winds 10 To 15 Kt. Seas 6 To 8 Ft. |
| Tue...Nw Winds 5 To 15 Kt. Seas 6 To 8 Ft. |
| Tue Night...Nw Winds 10 To 15 Kt. Seas 5 To 7 Ft. |
| Area Forecast Discussion National Weather Service San Diego CA 1251pm PDT Thu April 18 2024 Synopsis A weak trough of low pressure will continue to move over the area, bringing cooler temperatures, clouds, and breezy conditions. Low clouds and fog will occur each morning as well. High pressure will move into the area for the weekend, bringing warmer and sunnier weather. A trough off the Pacific will move ashore next week, brining cooler and windier weather to Southern California. For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties Short Term - Today Through Saturday A weak trough draped across the eastern Pacific and SoCal is leading to cloudier and cooler conditions today across the region. GOES imagery depicts higher clouds beginning to thin from west to east at this hour, where a better mix of clouds and sun will occur this afternoon and evening. The marine layer will deepen further as well, prompting low clouds and fog to fill much of the coastal basin by Friday and Saturday mornings. Southwest/west winds will begin to increase across mountains and deserts later this afternoon, with mountain passes and deserts seeing gusts 25-45 MPH. As the pressure gradient tightens as the system passes over SoCal on Friday afternoon and night, winds will become a bit stronger and more widespread with gusts 35-55 MPH expected. High temperatures will also cool slightly more than today with highs in the 60s and 70s for many, while the 90s hang on in the lower deserts. A weak ridge of high pressure will move into the area on Saturday, leading to slightly warmer temperatures and calmer winds. .LONG TERM (Sunday through Mid-Next Week)... The ridge will peak in intensity on Sunday, leading to the warmest day of the next week for most. Though probabilities for triple digit heat have slightly decreased, a modest (35-55%) chance still remains for areas like Palm Springs to see 100 degrees by Sunday. Heat risk will also reach into the moderate category for the lower desert regions, so stay hydrated and seek shade if outdoors for long periods. The ridge will not stick around for long, weakening by Monday as a trough enters the area through next week. Temperatures will still be well into the 90s for the lower deserts Monday, but start to cool west of the mountains as onshore flow increases. As it does so, winds will pick up across the mountains and deserts Monday. As the trough draws near, temperatures will continue to scale back with more marine layer clouds and fog west of the mountains. Winds will continue to be gusty as well through at least Wednesday, so hi-res guidance was incorporated to increase winds during this period. Though confidence on wind speeds remain low, many ensembles from the ECMWF (European Centre for Medium-Range Weather Forecasts) and GFS (Global Forecast System) have winds nearing 40 MPH across the deserts. The trough does have the potential to become a stronger closed low type of system, so we will keep an eye on if it will also bring any precipitation with it in the coming days. Marine No hazardous marine conditions are expected through Monday. Beaches A long-period swell from the Southern Hemisphere will continue to bring breaking wave sets up to 7 feet this afternoon, especially on south-facing beaches in Orange County, before gradually subsiding thereafter. This will generate a high rip current risk. 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...Beach Hazards Statement until 8pm PDT this evening for Orange County Coastal Areas. PZ...None. |
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