On November 18th, AccuWeather began to post that the first wave of a wet weather pattern would begin to affect the Pacific Northwest starting the next day. Then on the 19th, the National Weather Service warned that heavy rain was possible over parts of the Pacific Northwest Coast. They also warned of rain over Northern/Central California on the 19th as well as snow over the higher elevations.
Heavy rain, wind, freezing rain, sleet, and snow advisories were posted for Oregon on the 19th. Washington saw winter weather and wind advisories on the 20th. California and Nevada also had wind advisories posted on the 21st due to the storm system.
Here's a shot of the National Weather Service Radar for November 21st.
Links to Other Long-range Weather Forecasts and Forecast Results
November 22-25, 2014 East Coast Forecast
Tropical Cyclone Hadi
Hurricane Erick Fulfills Long-range Forecast
Tropical Storm Andrea Fulfills Long-range Forecast!
Timing the Relief for Drought-Stricken U.S. Plains
Testing Astrometeorology Part 2
Hurricane Sandy Fulfills Long-range Weather Prediction!
Testing Astrometeorology Part 1
Hurricane Season 2011 Forecast Results
New Weather Alternative Website
The Winters of 2011-14
Fulfilled Long-range Forecasts for Hurricane Season 2010
Introduction to the Weather Alternative