AgWeatherNet Weekly Weather Outlook for July 21 to July 27, 2012

Less Active Conditions This Weekend and Next Week

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

A drier and more stable southwesterly flow will provide calmer and more typical weather this weekend, with minimal chances for additional thunderstorms. Highs will mainly be in the 80s in eastern Washington, and in the 60s to mid 70s in western Washington. Low temperatures will return to more seasonal levels in the 50s. A cool upper low will move over the region from Sunday into Monday, bringing clouds and a chance of showers to western Washington, and breezy conditions to central Washington. In contrast to the recent behavior of upper lows, this low will not drop south of Washington and become cutoff from the main flow. A progressive pattern will cause this storm to quickly pass through Washington by Monday, meaning that unstable and humid southerly flow will not become established over the area. The air mass this weekend and early next week will feel dry and comfortable compared to recent days, as cooler low temperatures arrive in central and eastern Washington. Dew point temperatures east of the Cascades will be mostly in the 40s, instead of the 50s and 60s that were observed this past week. Monday will be the first day since early in the month with below normal temperatures area wide. Temperatures will warm to around normal with mainly dry conditions by the middle of next week. Following a cool Monday featuring highs in the mid 70s to low 80s in eastern Washington, day-time temperatures will warm into the 80s and 90s by Wednesday. Western Washington will mostly remain in the 60s on Monday, before warming into the 70s by Tuesday or Wednesday.

Temperatures
  • Near to slightly below normal this weekend.
  • Cool on Monday.
  • Warming to near to above normal by the middle of next week.

Rainfall
  • Mostly dry through the period.
  • A chance of showers for western Washington on Sunday and Monday, especially in the north.
  • Mostly dry east of the Cascades through the period.

Wind
  • Breezy to windy from late Sunday and into Monday in central Washington, with blowing dust possible.

Important Points about Next Week's Weather

South Central Washington
  • Normal conditions for this time of the year would be highs in the upper 80s to around 90 and lows in the 50s to around 60.
Weekend
  • Mostly sunny and dry.
  • Highs in the 80s to low 90s.
  • Lows in the 50s.
Next Week
  • Mostly sunny and dry.
  • Highs in the mid 70s to mid 80s on Monday.
  • Highs warming into the mid 80s to mid 90s by later in the week.
  • Lows in the 50s.

North Central Washington
  • Normal conditions for this time of the year would be highs in the mid to upper 80s and lows in the upper 50s.
Weekend
  • Partly sunny and mostly dry. A slight chance of showers by Sunday evening.
  • Highs in the 80s to around 90.
  • Lows in the 50s to around 60.
Next Week
  • Mostly dry. A chance of showers on Monday.
  • Highs in the mid 70s to low 80s on Monday.
  • Highs warming into the mid 80s to mid 90s by later in the week.
  • Lows in the 50s to low 60s.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the mid 80s and lows in the low 50s.
Weekend
  • Partly sunny and dry.
  • Highs in the low to mid 80s.
  • Lows in the upper 40s to mid 50s.
Next Week
  • Mostly dry.
  • Highs in the 70s on Monday, and 80s later in the week.
  • Lows in the upper 40s to mid 50s.

Western Washington
  • Normal conditions for this time of the year would be highs in the 70s to around 80 (except upper 60s to around 70 at the coast) and lows in the 50s.
Weekend
  • Mostly dry. A chance of showers by Sunday.
  • Highs in the mid 60s to low 70s, except 70s to around 80 at interior, southern areas on Saturday.
  • Highs in the 60s to mid 70s on Sunday.
  • Lows in the 50s.
Next Week
  • Mostly dry.
  • A chance of showers on Monday, especially in the north.
  • Highs in the 60s to low 70s on Monday.
  • Highs warming into the 70s to mid 80s later in the week, except cooler at the coast.
  • Lows in the 50s.
Washington State University