Swell Matrix

Area Forecast Discussion

National Weather Service San Diego CA

916 pm PST Wed Nov 12 2025

Synopsis

An incoming storm system will bring continued clouds, cooler weather and penitential for widespread rainfall across all areas. Another weather system may move over the area by early next week, continuing the chance for rainfall and cooler weather.

Aviation

130415z, Coasts/Western Valleys, FEW clouds near 1000 ft MSL offshore this evening, with some HZ; SCT-BKN mid and high clouds between 10-20 kft overhead. Low clouds will struggle to build through 10-12z. Thereafter, SCT-BKN bases broadly between 500-1000 ft to develop up to 10-15 miles inland. Patchy VIS reductions due to BR/HZ of 0-4 SM along coastal mesas and inland valleys; For low elevation coastal areas, VIS reductions mainly 4-6SM. Low clouds scatter out to the coasts by 17-18z Thursday. Clouds will struggle to form late Thursday once again, with FEW-SCT clouds based around 1000ft possible after 01z Friday.

Otherwise, VFR conditions will continue through Thursday evening. BKN high clouds AOA 20 kft will gradually lower to around 15 kft by Thursday.

Marine

A storm system will approach Friday and move through during the weekend, boosting southerly wind gusts to near 20kts and creating high seas.

Widespread rainfall is expected Friday through Sunday, which may be moderate to heavy at times. There is a slight chance of embedded thunderstorms Friday afternoon through Saturday.

Watches, Warnings, Advisories

Ca, None. PZ, None.

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