(EXTRACTED FROM FXUS66 KSGX 180524) 180530Z...Coast/Valleys...Showers will mostly be isolated and light the rest of tonight. However, widespread low ceilings will continue with cloud bases quite variable between 600 and 3000 ft MSL with layers to above 8000 ft MSL and areas of terrain obscured. Vis will occasionally be 2-4 miles in fog, locally below 1 mile, with some improvement late tonight. Gradual clearing will occur Friday, with mostly SCT conditions after 20Z. Mountains...Widespread terrain obscurations in clouds, rain, and fog will continue this evening, with some decrease in obscurations after 08Z. Areas of southwest to west surface winds 20-35 knots with local gusts 40-50 knots will occur near ridges and desert slopes through 14Z Fri along with strong up/downdrafts. Generally SCT local BKN conditions will occur Fri with variable cloud bases. Deserts...Areas of fog with vis 2-5 miles will occur overnight, with most clouds above 8000 ft MSL. Most areas should have unrestricted vis after 16Z Fri.