A fire chief ABC7 News spoke with said he recommends them for anyone who's home has flooded in the past.
Healdsburg's Russian River seating area is currently flooded.
WATCH VIDEO: Upcoming storms could push Russian River to flood stage
Al and Anna Myers have a flood concern closer to home. "Foss Creek gets really full and our neighborhood doesn't process water well, so our front yard will turn into a lake, our backyard into a lake," Anna said.
Their backyard is under construction. "Now we've got the foundation in there, but it's a swimming pool, you can't do anything else to it right now. So, we've sandbagged off the back of the main house," Al said.
WATCH VIDEO: Rain causes roof to collapse at manufacturing lab in San Jose
ABC7 News caught up with the Myers at the Safeway on Vine Street. During a big storm in 2014, the store's parking lot filled with water deep enough for kayaking.
The fire chief of the Novato Fire Protection District remembers 2014 as well. He said this next storm could be similar."Our crews will often be called when flooding enters a residence or to prevent it from entering the residence, earth movements that block roads or slide into the back of homes and then we also deal with a lot of trees that fall," Novato Fire Protection District Chief Mark Heine said.
WATCH VIDEO: Repairs underway after raw sewage floods several Millbrae homes
Heine is urging people to be prepared, especially for power outages. "Do not use candles, we often have problems with candles during outages," he said.
The Army Corps of engineers got ahead of the rain releasing water from a bulging Sonoma lake. "When there's a threat of flooding downstream, we pretty much shut it down," Carlos Hernandez said.
Guerneville would be in harm's way.
WATCH VIDEO: Wet weather takes its toll on San Francisco trees
PHOTOS: Rain, storms hit Bay Area during 2016 El Nino season
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