AgWeatherNet Weekly Weather Outlook for January 18 to 24, 2014

Dry and Calm Through the Period; Poor Air Quality Next Week

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

The dry winter weather looks to continue into the near future, as a ridge of high pressure remains firmly anchored over the Northwest. It is likely that no measurable precipitation will fall in Washington for at least the next 7 to 10 days. Although a very weak system passing well to our north will flatten the ridge's amplitude this weekend, it will have little impact on our weather other than to bring a slight chance of drizzle to the coast. As the ridge amplitude rebounds next week, the largest concerns will be poor air quality, as well as low clouds and fog in the lowlands. Temperatures will generally remain relatively mild, but will be tricky from day to day depending upon the location. Any areas that stay mired in low clouds and fog will have smaller diurnal swings, with warmer than average nights and near average days, while clear lowland areas will experience near average night-time temperatures and mild days.

The mountains and coast could be very mild at times next week, with 60s possible in the warmer areas. Generally, the hills in the coast range could be the warmest areas in the state since they will likely remain outside and above any inversions. Depending upon the ultimate duration of the high pressure episode, next week could bring the most significant lowland air stagnation event so far this winter. The dry and stable weather is expected to persist into week 2, with large uncertainty about whether the pattern may begin to change around February 1.

Temperatures
  • Above average statewide through the period.
  • Somewhat above average in the interior lowlands.
  • Well above average in the mountains/foothills and at the coast.

Precipitation
  • No measurable precipitation through the period.

Wind
  • Generally light to calm through the period.

Frost Risk Summary
  • This weekend and next week: Moderate to high east of the Cascades and low to moderate in the west.

8 to 14 Day Outlook - January 25 to January 31
  • Overall, above average temperatures and below average precipitation are expected during the 8 to 14 day time frame.

Important Points about Next Week's Weather

South Central Washington
  • Normal conditions for this time of the year would be highs in the low 40s and lows in the 20s.
Weekend
  • Partly sunny. Areas of low clouds and fog.
  • Highs in the upper 30s to 40s.
  • Lows in the mid 20s to mid 30s.
Next Week
  • Partly sunny. Areas of low clouds and fog.
  • Highs in the upper 30s to 40s.
  • Lows in the mid 20s to mid 30s.

North Central Washington
  • Normal conditions for this time of the year would be highs in the mid 30s and lows in the upper teens to low 20s.
Weekend
  • Partly sunny. Areas of low clouds and fog.
  • Highs in the mid 30s to mid 40s.
  • Lows in the mid 20s to mid 30s.
Next Week
  • Partly sunny. Areas of low clouds and fog.
  • Highs in the mid 30s to mid 40s.
  • Lows in the mid 20s to mid 30s.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the upper 30s and lows in the mid to upper 20s.
Weekend
  • Partly sunny.
  • Highs in the upper 30s to 40s.
  • Lows in the mid 20s to mid 30s.
Next Week
  • Partly sunny. Isolated areas of low clouds and fog.
  • Highs in the upper 30s to 40s.
  • Lows in the mid 20s to mid 30s.

Western Washington
  • Normal conditions for this time of the year would be highs in the upper 40s and lows in the 30s.
Weekend
  • Partly cloudy. A slight chance of drizzle.
  • Highs in the mid 40s to mid 50s.
  • Lows in the mid 20s to 30s on Saturday morning, and 30s to low 40s on Sunday morning.
Next Week
  • Partly sunny early, with areas of low clouds and fog developing by mid week.
  • Highs in the 40s to 50s, except low 60s possible near the foothills and the coast.
  • Lows in the 30s to mid 40s on Monday morning, and cooler later in the week.

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