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Petaluma River Is Expected To Flood by 3 p.m. Sunday

More rain is expected than was initially forecast, according to Sonoma County Emergency Coordinator.

Bay City News Service

The northern end of the Petaluma River is expected to flood within the next 18 hours, Petaluma police and fire officials warned at 8:45 p.m. Saturday.

The Sonoma County Emergency Coordinator has said that heavy rains expected Saturday evening will arrive earlier and bring more rain than initially predicted, according to a statement from Petaluma Fire Battalion Chief Jeff Holden.

"We will be monitoring the streams and gauges but please don't expect any alerts from Fire Department during this time frame," Holden said. "If flooding does occur, we will be out isolating flood areas and responding to calls for assistance."

Residents are urged to call 911 if they need assistance.
          
The Napa and Russian rivers are expected to reach flood stage Sunday and Monday, according to the National Weather Service.

The third storm in recent days is expected to arrive Saturday evening and continue into Sunday, bringing an additional seven to eight inches of rain in higher elevations. The North Bay is expected to see the heaviest rains, according to the weather service forecast.

The Russian River will reach flood stage in Guerneville around 2 a.m. Monday morning, with water at 31.7 feet, and crest around noon at 35 feet, the National Weather Service said.

Napa River is expected to reach flood stage in St. Helena around noon on Sunday, with water at heights of 15.9 feet, and crest around 3 p.m. at 17.8 feet, the National Weather Service said.

In Napa it is expected to reach flood stage around 1 p.m. Sunday, with water at heights of 25.2 feet, and between 5 and 6 p.m. with water levels reaching nearly 27 feet.

The National Weather Service has also issued a flash flood watch for the North Bay through Monday and a wind advisory from 10 p.m. Saturday through 10 a.m. Sunday, Martin said. Winds are expected to reach 20 to 30 mph
at lower elevations and up to 50 mph gusts at higher elevations.

Ann Popovic December 02, 2012 at 06:00 AM
Is there anything we can do ahead of time? Somewhere that should be sandbagged or ... I remember when we first got here it flooded at the trailer park; is there something we can be doing to help out before hand?
Lisa Cavallero December 02, 2012 at 06:58 AM
What about all of the work that was done to the Petaluma river to widen it and make it less likely to flood? Will the water be pumped out as it rises or what is the am for that? Where are sandbags? What can we do to help?
John Comeau December 02, 2012 at 08:58 AM
Lisa, re sandbags: http://gregoryreese.wordpress.com/2011/10/05/where-to-get-sandbags-sfgate-2/ Not sure if it's still all accurate, but my SO picked them up at the Lakeville Yardbirds the other day.
Abby Calvert December 02, 2012 at 12:21 PM
This is incredibly vague. I live off Payran near the river where the wall was put up. Technically we are on the "northern end" of the river. Does this mean we are in danger of flooding too, or is it even further north near stony point/outlets? I dont appreciate the lack of information and specifics regarding possible flooding.
Stinky December 02, 2012 at 02:49 PM
Sandbags are at the north end of Hopper St.. Please get them and use them.
Eric December 02, 2012 at 04:04 PM
Lisa. From what I've heard, the developments done in low-lying areas over the years (Outlet Malls and some things along McDowell) have displaced the flood planes to other areas that now are more likely to flood. The very north end of North McDowell is one such place, and people were sand bagging there are early as Friday morning.
Concerned Citizen December 02, 2012 at 07:02 PM
This is splitting hairs, but they haven't "displaced" Flood Planes, they have decreased the ability for water to absorb naturally in the Watershead, making flooding a quicker process. That area has flooded for decades, long before the Outlet Malls where there. 1986 proved to everyone that nothing should be built in that area due to significant flooding (North Mc Dowelling was under 4' of water just past Corona) for example.
LMK December 02, 2012 at 07:55 PM
Is there a map to saw possible areas for flooding in Petaluma?

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