Be prepared for very wet and windy conditions as you're getting ready to head out the door this morning! Low pressure is swinging through our region early today and bringing major travel impacts to northern California for the start of your Friday. The heaviest rain will last through your morning commute, and will mostly be limited to the foothills and Sierra after 9am. The main band of moisture will continue to track southeast early to mid day, and we'll be left with scattered showers and the potential for thunderstorms for the remainder of your Friday. The best chance for thunderstorms will be in areas from Tehama County to the north this afternoon and evening. A Flash Flood Watch is set to stay in effect through 8am in valley areas of Shasta and Tehama Counties, and through 11am for the foothills, Plumas, and Lassen Counties. A Flood Advisory was issued for Siskiyou County just around 4:30am. A Flood Advisory has now also been issued for portions of Shasta, Tehama, Glenn, Butte, and Plumas Counties through 1pm Friday afternoon. Wind Advisory is still set to expire at 8am in Modoc and Siskiyou Counties. We're starting out mostly cloudy with a band of heavy rain moving through our region to start the day, but will have the potential for some clearing and scattered showers this afternoon. Models are indicating a chance for thunderstorms later today into this evening. Temperatures are mostly in the 60's in the valley, 50's in the foothills, and 40's to 50's in our mountain areas to start the day. Snow levels will dip to as low as 6000' this morning, but not much snow is expected as this front passes through. Sustained winds out of the south to 25mph are looking likely, with gusts up to around 30mph this morning in the valley, and 40mph gusts looking likely in our higher elevations. Winds will become lighter through the day, with the exception of areas around any thunderstorms that could potentially develop this afternoon. High temperatures are projected to top out in the mid to upper 60's in teh valley, 50's in the foothills, and 40's to 50's in our higher elevations today.
A break from the heavier rain is expected from Friday night through early in the day on Saturday, but another round of showers will be likely through your Saturday. Heavier rain will start to pick up Saturday night, and we'll have very heavy rain and gusty winds in your forecast on Sunday. Temperatures will mostly end up in the 50's in the valley this weekend, while foothill and mountain areas top out in the 40's to lower 50's this weekend. A Flood Watch has been issued for most of northern California starting Saturday evening and it's set to last through Monday evening. We'll also have cooler temperatures as we head through this weekend. Snow levels will start to dip through the day on Sunday, and will fall into the 4500' to 6000' range Sunday night into Monday. This has prompted a Winter Storm Watch to be issued for the northern Sierra from Sunday evening through early Tuesday morning. One to two feet of snow will be possible above 5500', and some of our higher peaks will have the potential for up to around 3 feet of snow. The heavier rain will turn to lighter showers through Monday, but we'll also have the potential for thunderstorms Monday afternoon and evening. The potential for light to moderate showers will persist into Tuesday. Temperatures will continue to drop through Tuesday, when valley areas only top out in the low to mid 50's, and our higher elevations mostly end up in the 40's. The latest models show us drying out and getting a bit warmer through the middle of next week. Valley areas will top out in the mid 60's on Wednesday, and mid to upper 60's on Thursday. Longer range models are currently split on whether or not more showers can be expected next weekend, but we'll continue to track the latest conditions to bring you the information you need to stay safe and plan ahead as models come into more agreement next week.