The Sierra is anticipating lots of snow from this cold storm. At Heavenly Mountain Resort in Lake Tahoe, they have a nice cover already and could get another two feet of snow over the next few days. If you plan to enjoy the snow this holiday week, pack your chains if you're driving up after the snow starts falling.
In San Anselmo and Marin County, they have seen their share of damaging storms and floods in the past. In 2005, on San Anselmo Avenue they had a flood that rose a couple of feet -- and that wasn't even an El Nino year.
If you live in San Anselmo, in the shadow of the flood warning horn, you know it's a question of when there will be floods, not if.
"It happened before and all indications are that it will happen again," Brad MacKenzie, owner of 3 Ring Cycles, said.
MacKenzie owns a bicycle shop and a floodgate. He came to town after the disastrous flood of 2005 -- the one that surprised everyone after another in 1982, which was a lot like the one in 1925.
TRACK THE RAIN: Click here to track the rain on Live Doppler 7 HD
San Anselmo Town Manager Debbie Stutsman said if they get that same amount of rainfall, they will likely flood again. Expecting a flood a few feet high, makes the inconveniences we found elsewhere on Monday, seem trivial by comparison.
Here's a warning for the week -- do not park your car during a king tide in Mill Valley's Manzanita Park and Ride Lot.
With rain and tides coming, tow truck driver Walter Rivas expects to return, frequently. He told ABC7 News, "Every year, it happens, the same thing. Always in the high time."
Our highest peaks may see snow just before the holidays! Snow level drops to 3,000' possibly 2,500'. pic.twitter.com/2FI9bBndc5— Sandhya Patel (@SandhyaABC7) November 24, 2015
In the North Bay on Monday there was also lots of preparation. One resident had an arborist cutting down a very tall tree in their yard.
"If the wood is really brittle from the drought, the roots are stressed, we're going to have a problem this winter," Tad Jacobs from Treemasters said. "We've had more [problems] this summer than we've had in most winters. It's going to be catastrophic if El Nino comes in as predicted."
San Rafael residents Don and Cherie Herzog didn't want to take down one of their tall pine trees, but experts told them either they take down the tree or it could wipe out their house.
VIDEO: Click here to watch the latest local AccuWeather forecast
Cherie said, "Thirty-nine years ago we moved in and this tree has kept us cool in the summer and keeps the warm air here in the winter. And it's beautiful, I just hate to lose it."
With storms on the way, it's best to be proactive and decisive.
In Napa on Monday, crews began the process of protecting the historic Napa County Courthouse from the upcoming storms. The courthouse has been closed since it was damaged in last year's earthquake.
Warming shelters are beginning to open their doors as the cold weather approaches. Monday, San Francisco Mayor Ed Lee and local agencies announced the emergency winter shelter program will begin this Sunday. Several shelters in Santa Clara County plan to open their doors next Monday. The city of Oakland opened its shelter program last week.
You can track the coming showers where you live with the ABC7 Weather app for your smartphone. If you're traveling, you can also get weather conditions and warnings wherever you are. It is free on Apple's App Store or on Google Play.
When you get unusual weather where you live, tag your photos and videos on Twitter, Instagram, or Facebook with #abc7now and we may use it on air.
Temperatures will plunge behind the storm.. at/below freezing WED-FRI! Expected to be coldest air of season so far. pic.twitter.com/6TZTC6sFzA— Sandhya Patel (@SandhyaABC7) November 23, 2015
Carry chains if you're heading to mountains & prepare for major delays tomorrow. Winter Storm Warning 2,500'. pic.twitter.com/1W1xgkUBwV— Sandhya Patel (@SandhyaABC7) November 23, 2015