Overview
- A cold, cut‑off low spinning over Northern California is creating unstable air that is producing scattered showers and isolated thunderstorms across northern San Luis Obispo County and parts of Santa Barbara County.
- Most places should see only light totals this short storm, with overnight amounts generally under 0.25 inch and model guidance targeting about 0.3–0.4 inch north of Point Conception.
- The system is expected to move east later in the week, triggering a warming and drying trend with temperatures rising roughly 3–6°F as onshore breezes weaken.
- Travel impacts will be limited but possible as heavier, spotty downpours and brief thunderstorms could slow commutes in localized areas and higher terrain.
- High pressure is forecast to rebuild after the system departs, pushing inland valleys into the low 90s while the coastal marine layer keeps shore-side highs near normal with morning low clouds.