AgWeatherNet Weekly Weather Outlook for March 10 to March 16, 2018

Becoming Much Warmer Early Next Week; Unsettled By Mid Week

Nic Loyd, Meteorologist, 509-786-9357

Following a chilly morning, placid and seasonal conditions on Saturday will give way to southerly air flow and much warmer temperatures early next week. Highs look to be in the 60s on Monday in many locations, and particularly in the west, with 70+ degrees possible in spots. Starting around Tuesday, a ponderous low pressure area off the west coast should slowly begin to impact the region with increasingly unsettled and eventually cooler weather. More clouds, breezes, and augmented rain chances are likely to spread eastward around mid week.

Cooler temperatures are expected on Tuesday for highs in the west, and that cooling is forecast to eventually affect lows in eastern areas by the end of the week. Although it is always difficult to know several days in advance how these slow moving lows will progress, the general trend could be as follows: Given the upper level southerly air flow, and low level easterly flow around Tuesday/Wednesday, rain chances may be elevated even in normally dry central Washington. However, as the low finally moves inland and weakens at week’s end, an increasingly westerly flow would likely bring about a return to a drier regime, especially in central Washington.

Regardless of how late next week unfolds, the weather on Monday and perhaps Tuesday is generally anticipated to be the warmest of the year so far. This first true interval of spring-like conditions should be accompanied by quicker plant and crop development, and potentially also a characteristic March resurgence of bugs and pollen.


Key Points:

  • Frosty on Saturday morning
  • Very mild days spreading from west to east from Sunday to Tuesday
  • Increased mountain snowmelt and rising streamflow
  • Very mild nights for early to mid next week
  • Unsettled with increasing rain chances, breezes, and cooler afternoons on Tuesday and Wednesday
  • Cooler mornings and possibly drier later next week


Temperatures
  • Seasonal on Saturday, and then becoming much warmer.
  • Possibly cooler later next week.

Precipitation
  • A chance of rain developing and spreading east by mid next week.

Wind
  • Breezy at times, especially starting on Tuesday

8 to 14 Day Outlook - March 17, 2018 to March 23, 2018
  • Overall, near to below 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
  • Normal conditions for this time of the year would be highs in the mid 50s to around 60 and lows in the upper 20s to 30s.
Weekend
  • Mostly dry.
  • Highs in the mid 50s to around 60 on Saturday, and upper 50s to low 60s on Sunday.
  • Lows in the mid 20s to mid 30s on Saturday morning, and low to mid 30s on Sunday morning.
Next Week
  • Mostly dry on Monday. A chance of rain later on Tuesday, and then a slight chance of showers thereafter.
  • Highs in the upper 50s to mid 60s on Monday, and then cooler, and possibly warmer later in the week.
  • Lows in the mid to upper 30s on Monday morning, and then warmer, and possibly cooler later in the week.

North Central Washington
  • Normal conditions for this time of the year would be highs in the low to mid 50s and lows in the upper 20s to mid 30s.
Weekend
  • Mostly dry.
  • Highs in the upper 40s to mid 50s on Saturday, and 50s on Sunday.
  • Lows in the mid 20s to mid 30s on Saturday morning, and low to mid 30s on Sunday morning.
Next Week
  • Mostly dry on Monday. A chance of rain on Tuesday or Wednesday, and then a slight chance of showers thereafter.
  • Highs in the mid 50s to around 60 on Monday, and then cooler, and possibly warmer later in the week.
  • Lows in the mid 30s to low 40s on Monday morning, and then warmer, and possibly cooler later in the week.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the upper 40s to mid 50s and lows in the low to mid 30s.
Weekend
  • Mostly dry.
  • Highs in the upper 40s to mid 50s on Saturday, and 50s to low 60s on Sunday.
  • Lows in the mid 20s to mid 30s on Saturday morning, and low to mid 30s on Sunday morning.
Next Week
  • Mostly dry early. A chance of rain on Wednesday, and then a slight chance of showers thereafter.
  • Highs in the upper 50s to mid 60s early, and cooler later in the week.
  • Lows in the mid 30s to low 40s on Monday morning, and then warmer, and possibly cooler later in the week.

Western Washington
  • Normal conditions for this time of the year would be highs in the mid to upper 50s and lows in the upper 30s to low 40s.
Weekend
  • Mostly dry.
  • Highs in the mid to upper 50s on Saturday, and upper 50s to mid 60s on Sunday.
  • Lows in the 30s on Saturday morning, and mid 30s to low 40s on Sunday morning.
Next Week
  • Rain likely on Tuesday and Wednesday, and a chance of rain or showers thereafter.
  • Highs in the 60s on Monday, and then cooler.
  • Lows in the mid 30s to 40s on Monday morning, and then warmer, and cooler later in the week.

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