Winter weather advisory has been extended.

The winter weather advisory has now been extended to 5 am for the Seattle, Everett area.  1-3 inches still expected, locally higher amounts. 

I am making my own prediction for Shoreline to be about 4-6 inches.  I am closely watching the rate of the warmer air to guess when the snow might change to rain, or freezing rain.  Temperature right now is 30ºF and holding steady, dropped from 35ºF in about an hour when the snow started falling.  At the moment, I am predicting the snow to change over to rain at about 2-3am.   I think there is also a strong chance that the cold air will hold here in Shoreline later than that, possibly through day break tomorrow morning.  Easterly winds are still running strong right now to support the cold air flow.

If a surface low develops south of the state, or south of the city it could continue the cold air flow for a prolonged period of time.  Anything is possible right now as this storm is somewhat dis-organized now.