Get ready for heavy rains and possible flooding this weekend.  Flood watches and warnings are in effect for parts of Western Washington.

Crews are bracing for the heavy rainfall and they're keeping an eye on possible flooded rivers and street flooding this weekend.  

The Skokomish River is expected to flood again.  Officials say if rain lasts for more than 24 hours, there could be possible flooding in the Nooksack, Skagit, Stillaguamish and Snoqualmie Rivers in the north Cascades.  In the Olympics, the Satsop and Bogachiel Rivers are expected to flood.

A winter weather advisory has been in effect for the Olympic Mountains.  More than 40 inches of snow dropped in the mountains within the past two days. 

Q13 FOX News traveled to the mountains Thursday night as snow began to pile up.  WSDOT had to stop westbound traffic for a short time because of spin outs on I-90.  They also shut down a five mile stretch of the pass for avalanche control. 

Late Saturday, it will start warming up and as a result, the new snow is going to melt and give way to some river flooding.

Mudslides could cause problems this weekend as well.  In Clallam County, crews have shut down SR 112 because of a mudslide.

Seattle could be in for one to three inches of rain between late Saturday night and Sunday afternoon, with another storm coming on Monday. The heaviest rain is expected to occur south of the ship canal.

To report flooding or blocked drains or heavy ponding in Seattle, please call (206) 386-1800.

In preparation for the storm, Seattle Public Utilities has assigned extra field operations workers to work Saturday and Sunday, and has staged flood control equipment at various locations around the city.

The Utility is also delivering about 500 pre-packed sandbags to the Meadowbrook and Delridge Community Center (250 at each), Friday.

For the latest from our Q13 FOX Weather Team, read their weather updates.

For satellite radar maps and temperatures, check our weather page. 

Stay up to date with your weather forecast on and on Q13 FOX News at 9pm and 10pm throughout the weekend.