AgWeatherNet Weekly Weather Outlook for June 3 to July 9, 2020

A few mountain rain showers through an overall dry period

Mark Ingalls, AgWeatherNet Intern
Craig Oswald, Field Meteorologist, 509-786-9256
Michelle Daughtrey, AgWeatherNet Intern

Discussion:

The main influencer for this weekends weather looks to be a long wave trough situated just to the north of Washington in western Canada. The brunt of the sensible weather impacts will remain with our friends to the north as Washington resides mostly under westerly/southwesterly flow through the base of the trough. However, a weak upper disturbance looks to encroach upon the northwest corner of the state from the northwest on Friday. This is expected to produce a few scattered upland rain showers along with a stray light shower or two through lowland areas through the day Friday in northern Washington with cloud cover remaining in place west of the Cascades. Scattered rain showers throughout the Cascades, Olympics, and lowland areas of western Washington also look to continue through Friday, especially in the northern half of the region. South central and eastern Washington are expected to remain dry. Shower activity will trend dry through Friday night with mostly dry and sunny conditions expected state wide for the remainder of the holiday weekend. It is possible however that the Olympics and areas near the northern fringe of the Cascade crest see a light rain shower or two Saturday night. Temperatures look to remain mostly seasonable throughout the state for the weekend.

By early next week, cloud cover and showers look to return to upland portions of northern Washington as well as western Washington in general as another weak disturbance moves into the region form the northwest Monday night. Showers will remain scattered in nature with the bulk of them moving through the indicated regions Tuesday. Conditions look to slowly trend dry through Wednesday and Wednesday night. Conditions are anticipated to remain dry elsewhere in the state. Temperatures are to continue to remain mostly seasonable.

A few scattered rain showers may begin impacting coastal Washington again by Friday as a robust trough begins to set up over the north Pacific around midweek, transitioning the region from westerly to southwesterly flow by weeks end and placing the Pacific northwest in a more favorable pattern for scattered rain showers by the following weekend. Any showers that develop will likely be relegated to western Washington and upland/mountain areas as there looks to be an all around lack of moisture available with this system.

*NOTE: In an effort to make a stronger push to complete weather station maintenance, repair, and network reconfiguration this summer, Monday weather outlook updates will be temporarily suspended. This suspension will last through early September when weather begins to again turn more active and harvest activities necessitate more up to date weather information. Friday outlooks will continue as usual.


8 to 14 Day Outlook  July 10, 2020 to July 16, 2020
  • Near average temperatures and near average precipitation are expected during the 8 to 14 day time frame.

Important Points about Next Week's Weather

South Central Washington
Weekend
  • Wind: Mostly SW and generally light yet becoming breezier through the day. Evening winds gusting to around 30 mph.
  • Precipitation: Dry conditions for the region throughout the weekend.
  • High Temps: Mid 80s Fri, mid 80s Sat, mid 80s Sun.
  • Low Temps: Low 50s Fri night, low 50s Sat night, mid 50s Sun night.
  • Sky Cover: Partly cloudy throughout the weekend with mostly sunny afternoons.
Next Week
  • Wind: Mostly W/SW yet variable and light. Maintaining a pattern of breezy evenings.
  • Precipitation: Dry conditions persist throughout the week.
  • High Temps: Mid 80s Mon, mid 80s Tue, mid 80s Wed, upper 80s Thu.
  • Low Temps: Mid 50s Mon night, low 50s Tue night, mid 50s Wed night, mid 50s Thu night.
  • Sky Cover: Mostly sunny throughout the week with additional cloud cover Tuesday. Sunny afternoon Thursday.

North Central Washington
Weekend
  • Wind: Mostly W/NW and generally light yet becoming breezier through the day. Evening winds gusting to around 30 mph through the Basin.
  • Precipitation: A few light upland rain showers Friday with a chance for a stray rain shower or two through lowland areas. Low chance for a light rain shower or two again Saturday night through upland areas. Dry through the Basin for the weekend.
  • High Temps: Upper 70s Fri, low 80s Sat, mid 80s Sun. Cooler in high terrain.
  • Low Temps: Low 50s Fri night, mid 50s Sat night, mid 50s Sun night. Cooler in high terrain.
  • Sky Cover: Partly cloudy and becoming sunnier for Sunday.
Next Week
  • Wind: Mostly W yet variable and light. Maintaining a pattern of breezy evenings, especially through the Basin.
  • Precipitation: Some light rain showers expected through the region primarily Tuesday with a lesser chance Wednesday and greater activity through the western half of the region. Otherwise dry conditions expected.
  • High Temps: Mid 80s Mon, low 80s Tue, low 80s Wed, low 80s Thu. Cooler in high terrain.
  • Low Temps: Upper 50s Mon night, mid 50s Tue night, mid 50s Wed night, mid 50s Thu night. Cooler in high terrain.
  • Sky Cover: Mostly sunny to partly cloudy.

Eastern Washington
Weekend
  • Wind: Mostly SW and generally light yet becoming breezier through the day. Evening winds gusting to around 30 mph.
  • Precipitation: Dry conditions for the region throughout the weekend.
  • High Temps: Mid 70s Fri, mid 70s Sat, upper 70s Sun.
  • Low Temps: Near 50 Fri night, near 50 Sat night, near 50 Sun night.
  • Sky Cover: Partly cloudy throughout the weekend with mostly sunny afternoons.
Next Week
  • Wind: Mostly W/SW yet variable and light. Maintaining a pattern of breezy evenings.
  • Precipitation: Dry conditions persist throughout the week.
  • High Temps: Upper 70s Mon, upper 70s Tue, mid 70s Wed, mid 70s Thu.
  • Low Temps: Low 50s Mon night, low 50s Tue night, low 50s Wed night, low 50s Thu night.
  • Sky Cover: Mostly sunny throughout the week with additional cloud cover Tuesday. Sunny afternoon Thursday.

Western Washington
Weekend
  • Wind: Light and generally S/SW through the end of the week. Saturday shifts W/NW. Becoming breezier Saturday. Return to a SW and more variable wind Sunday.
  • Precipitation: Mostly dry conditions throughout the region for the weekend, with the exception of some light rain showers Friday, especially through the San Juans, Olympics, and Cascades. A few more scattered light rain showers expected for the Olympics and Cascades Saturday night.
  • High Temps: Low 70s Fri, mid 70s Sat and Sun. Much cooler through the Cascades and Olympics.
  • Low Temps: Near 50 throughout the weekend. Much cooler through the Cascades and Olympics.
  • Sky Cover: Mostly cloudy Friday. Clouds to push NE while becoming partly sunny Saturday and Sunday. Patchy fog possible during the overnight and early morning hours.
Next Week
  • Wind: Mostly light and W yet variable. Variable but generally light SW wind becoming breezier Friday.
  • Precipitation: Some light rain showers expected through the region primarily Tuesday and Wednesday, especially through the Olympics and Cascades with greater activity through the northern half of the region. Otherwise dry conditions expected throughout the region.
  • High Temps: Low 70s Mon, near 70s Tue, low 70s Wed, near 70 Thu. Much cooler through the Cascades and Olympics. Cooler near the coast.
  • Low Temps: Low 50s Mon night, low 50s Tue night, mid 50s Wed night, mid 50s Thu night. Much cooler through the Cascades and Olympics.
  • Sky Cover: Mostly to partly cloudy with potential for brief clear skies Thursday.

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