Get that umbrella handy, and make sure to give yourself extra time to get to where you're going today. Fog will impact visibility for your morning commute, and showers will be returning for your drive home. Fog has become dense in some areas overnight, and left some areas with visibility under a mile for the start of your Thursday. We're starting out dry, but a band of showers will track from Northwest to Southeast across the region this afternoon through tomorrow morning. Temperatures have dipped into the mid 40's to low 50's in the valley this morning, and into the 20's to 30's in the mountains early today. A heavier jacket may be a good idea with the cooler temperatures, and showers in today's forecast. Winds are expected to stay on the lighter side out of the Southeast, but could get up to around 10mph this afternoon. High temperatures will end up in the mid to high 50's in the valley, and into the 40's to low 50's in the mountains this afternoon. Showers will become more widespread tonight, and are then expected to fizzle out early Friday. Snow levels will be down to around 6000'.
Some showers could linger in the Sierra through Friday afternoon, but most areas are expected to stay dry after tomorrow morning. Temperatures will not change compared to today, and will end up back in the mid to high 50's in the valley. We'll stay dry for the better part of Saturday, before another round of showers returns on Saturday night. The wet weather could persist through the day on Sunday, but will taper off by Sunday night. A more potent storm system will arrive on Christmas Eve, and could last through Christmas Day. That system will pack more of a punch when it comes to moisture, and could result in upwards of a foot of snow in some higher elevations. Snow levels could dip to as low as 4000', and mountain travel is expected to be impacted. Make sure you plan your travels accordingly, and have chains or a 4wd vehicle if you're going to be heading through pass areas for the start of next week. Models are split on the remainder of next week, but more showers will be possible on Thursday and Friday.