AgWeatherNet Weekly Weather Outlook for December 10 to December 16, 2011

A Chance of Rain Returns to Western Washington Next Week

Nic Loyd, Meteorologist, 509-786-9357
Gerrit Hoogenboom, Director, 509-786-9371

The persistent ridge of high pressure in the eastern Pacific Ocean will begin to break down on Saturday, allowing a weak weather system to move through Washington on Sunday. While there will be little in the way of sensible weather associated with this system, western Washington will have a slight chance of showers and improved air quality on Sunday. After a calm beginning to the week, another slightly stronger weather system is likely to bring rain to western Washington around mid week. The increased winds aloft should mix the atmosphere enough to finally cause some improvement in the air stagnation issues that have plagued eastern Washington for the past week or more. Most areas east of the Cascades should be dry for much of next week, despite the slow return of periodically unsettled weather. By mid week, the mountains will see cooler and at times rainy or snowy weather.

Important Points about Next Week's Weather

South Central Washington
  • Normal conditions for this time of year would be highs in the upper 30s to low 40s and lows in the 20s to around 30.
Weekend
  • Mostly dry with areas of low clouds or fog on Saturday morning.
  • Highs in the 30s to low 40s and lows in the mid teens and 20s.
Next Week
  • Dry Monday with low clouds and fog possible, and then a slight chance of rain around mid week.
  • Highs in the mid 30s to low 40s and lows in the upper teens and 20s.

North Central Washington
  • Normal conditions for this time of year would be highs in the mid 30s and lows in the low to mid 20s.
Weekend
  • Mostly dry with areas of low clouds or fog on Saturday morning.
  • Highs in the 30s and lows in the mid teens to low 20s in the Omak area and low to mid 20s in the Wenatchee area.
Next Week
  • Dry Monday with low clouds and fog possible, and then a slight chance of rain or snow around mid week.
  • Highs in the 30s and lows in the upper teens and 20s.

Eastern Washington
  • Normal conditions for this time of year would be highs in the mid to upper 30s and lows in the mid to upper 20s.
Weekend
  • Mostly dry with highs in the mid 30s to mid 40s and lows in the 20s.
Next Week
  • Dry Monday, and then a chance of rain or snow around mid week with highs in the 30s to around 40 and lows in the upper teens to 20s.

Western Washington
  • Normal conditions for this time of year would be highs in the mid to upper 40s and lows in the 30s.
Weekend
  • A slight chance of showers Sunday but mostly dry overall with highs in the 40s, and lows in the mid 20s to 30s.
Next Week
  • Dry Monday with low clouds or fog possible, and then a chance of rain around mid week.
  • Highs in the 40s and lows in upper 20s and 30s.
Washington State University