AgWeatherNet Weekly Weather Outlook for October 19 to 25, 2013

Mostly Sunny and Dry Weather to Continue Next Week

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

The semi-permanent ridge of high pressure that has dominated our weather for nearly a week will remain strong for most of the coming week as well. As a result, mostly sunny and dry weather is expected for the next 7 days. Even milder days are likely by early next week, as the air mass aloft continues to warm. Although certain lowland areas will continue to experience cool overnight conditions, some low temperature moderation is expected by next week. The main concerns for the period will be the potential for areas of night and morning fog, as well as air quality issues associated with the stagnant conditions and lack of vertical mixing or horizontal exchange. The mountain slopes and peaks will continue to be unusually warm during both the day and night, while protected mountain valleys and basins will experience some cold nights this weekend. If offshore flow develops early next week, the weather in western areas, especially near the coast or the mountains, could be quite warm for this time of year. The ridge of high pressure may briefly weaken later next week, although it is likely to regain its hold over the region next weekend.

Temperatures
  • Above average, especially in the mountains and during the day.

Rainfall
  • Dry through the period.

Wind
  • Mainly light.

Frost Risk Summary
  • This weekend: High risk.
  • Next week: Moderate risk.

8 to 14 Day Outlook - October 26 to November 1
  • Overall, above average temperatures and below average rainfall 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 to mid 60s and lows in the mid 30s to around 40.
Weekend
  • Mostly sunny.
  • Highs in the mid to upper 60s on Saturday, and mid 60s to around 70 on Sunday.
  • Lows in the 30s to low 40s on Saturday morning, and 30s to mid 40s on Sunday morning.
Next Week
  • Mostly sunny.
  • Highs in the mid 60s to low 70s.
  • Lows in the mid 30s to 40s.

North Central Washington
  • Normal conditions for this time of the year would be highs in the upper 50s to around 60 and lows in the upper 30s.
Weekend
  • Mostly sunny.
  • Highs in the 60s on Saturday, and mid to upper 60s on Sunday.
  • Lows in the mid 30s to around 40 on Saturday morning, and mid 30s to mid 40s on Sunday morning.
Next Week
  • Mostly sunny.
  • Highs in the mid 60s to around 70.
  • Lows in the upper 30s to 40s.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the upper 50s and lows in the upper 30s.
Weekend
  • Mostly sunny.
  • Highs in the upper 50s to low 60s on Saturday, and low to mid 60s on Sunday.
  • Lows in the 30s on Saturday morning, and mid 30s to around 40 on Sunday morning.
Next Week
  • Mostly sunny.
  • Highs in the 60s.
  • Lows in the mid 30s to mid 40s.

Western Washington
  • Normal conditions for this time of the year would be highs in the upper 50s to low 60s and lows in the low to mid 40s.
Weekend
  • Mostly sunny, with areas of night and morning fog and low clouds.
  • Highs in the 60s.
  • Lows in the mid 30s to mid 40s.
Next Week
  • Mostly sunny early in the week, except night/morning low clouds and fog possible.
  • Increasing clouds possible later in the week.
  • Highs in the mid 60s to low 70s, and possibly cooler later in the week.
  • Lows in the upper 30s to 40s.

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