AgWeatherNet Weekly Weather Outlook for May 13 to May 19, 2017

Cool and Unsettled Through Tuesday; Warmer and Drier Later in the Period

Nic Loyd, Meteorologist, 509-786-9357

The weather will feel more like early to mid spring in the coming days, as a cool trough of low pressure lingers over the region through the beginning of next week. Unsettled conditions, including scattered showers and breezes, are expected periodically through at least Tuesday. Although daytime temperatures look to be particularly cool (relative to normal), isolated frost is possible east of the Cascades just about any morning through the middle of next week. Despite a chilly air mass, clouds, moisture, and wind are generally forecast to keep night-time temperatures above their potential minimums. Still, any cold sites that become clear and calm have the chance of reaching 28 to 32 degrees some morning during the interval. There should also be some snowfall in the higher elevations.

Although central Washington is likely to be rain-shadowed for much of the time, it presently appears that Tuesday is the best opportunity for widespread rainfall and a cool afternoon. There is some model agreement that a closed low pressure system may drop south of the state on Tuesday, which could cause a brief cessation of the typical westerly flow. As a result, rain bands are possible anywhere that lies on the north side of this low. At any rate, warmer and drier conditions are anticipated later next week.

Temperatures
  • Cool through early next week.
  • Warmer later in the period.

Precipitation
  • A chance of showers at times through early to mid next week.

Wind
  • Breezy to windy at times.

Frost Risk Summary
  • This Weekend: Low to moderate risk.
  • Next Week: Low to moderate risk.

8 to 14 Day Outlook - May 20, 2017 to May 26, 2017
  • Overall, near to above average temperatures and near to 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 70s and lows in the 40s to around 50.
Weekend
  • Mostly dry. A slight chance of showers.
  • Highs in the upper 50s to 60s on Saturday, and 60s on Sunday.
  • Lows in the mid 30s to mid 40s on Saturday morning, and mid 30s to 40s on Sunday morning.
Next Week
  • A chance of showers early in the week, especially on Tuesday.
  • Highs in the 60s on Monday, and cooler on Tuesday, and then warmer.
  • Lows in the mid 30s to mid 40s on Monday morning, and warmer later in the week.

North Central Washington
  • Normal conditions for this time of the year would be highs in the low to mid 70s and lows in the mid to upper 40s.
Weekend
  • A slight chance of showers.
  • Highs in the upper 50s to mid 60s on Saturday, and upper 50s to 60s on Sunday.
  • Lows in the mid 30s to mid 40s on Saturday morning, and mid 30s to 40s on Sunday morning.
Next Week
  • A chance of showers early in the week, especially on Tuesday.
  • Highs in the upper 50s to 60s on Monday, and cooler on Tuesday, and then warmer.
  • Lows in the mid 30s to mid 40s on Monday morning, and warmer later in the week.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the mid 60s to mid 70s and lows in the 40s.
Weekend
  • A chance of showers.
  • Highs in the 50s to low 60s on Saturday, and mid 50s to low 60s on Sunday.
  • Lows in the mid 30s to mid 40s on Saturday morning, and mid 30s to 40s on Sunday morning.
Next Week
  • Showers likely at times through mid week.
  • Highs in the mid 50s to mid 60s early, and then warmer.
  • Lows in the mid 30s to mid 40s on Monday morning, and warmer later in the week.

Western Washington
  • Normal conditions for this time of the year would be highs in the 60s and lows in the mid to upper 40s.
Weekend
  • Showers likely at times.
  • Highs in the mid 50s to around 60 on Saturday, and mid 50s to low 60s on Sunday.
  • Lows in the 40s on Saturday morning, and 40s to around 50 on Sunday morning.
Next Week
  • Showers likely early in the week.
  • Highs in the mid 50s to low 60s early, and then warmer.
  • Lows in the 40s on Monday morning, and warmer later in the week.


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