We will end the year on a dry note with several cities breaking record dry years including Medford and Klamath Falls. High pressure will continue to dominate our weather through 2013 with only weak disturbances bringing increase clouds all areas with west side valley fog persisting. The ridge will flatten a bit Tuesday which could bring a tad more sunshine to the valleys and a slightly warmer day but Wednesday dense fog returns. A weak shortwave will bring a slight chance for afternoon showers along and east of the Cascades.
Thursday evening showers will hit the coast and spread inland with isolated showers on the east side and northern California. Showers will taper off Friday morning and we return to a dry weather pattern into the weekend as high pressure strengthens again.
With a weak front moving in, temperatures will be slightly warmer for west side valleys with less fog and cooler temperatures elsewhere Thursday and Friday. Any poor air quality will also improve with the rain, but will high pressure returning over the weekend air quality will likely deteriorate again.
Thanks for logging on and have a great evening!
Meteorologist Megan Parry