AgWeatherNet Weekly Weather Outlook for March 1 to 7, 2014

Much Colder in the East This Weekend; Active and Much Warmer Next Week

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

A rapidly evolving weather pattern will make for an exciting but difficult forecast in the coming days. Drastic weather swings are likely early next week, as eastern Washington quickly transitions from winter to late spring in a few days time.

On Friday night and Saturday, cold air will pour into eastern Washington on the heels of strong northeasterly winds. While heavy precipitation is not expected, clouds and light snow will be possible as cold, dense air displaces the mild, moist air that is currently over Washington. Highs on Saturday will only be in the 20s and 30s in eastern areas. Overall, a large temperature gradient is expected over the Northwest, as the air mass may be 30 degrees warmer over central Oregon compared to central Washington. Although many western areas will miss out on the cold air, Whatcom County may be a notable exception, thanks to cold outflow from the Fraser River Valley. While most of western Washington will rise into the 40s, Bellingham may remain in the 30s on Saturday. A cold upper low over British Columbia will retreat northward on Sunday, as a mild and moist southern branch of the jet stream moves into Washington. Depending upon how and when a storm system arrives on Sunday, there could be areas of snow before warmer air floods into the state.

Next week, the weather will become stormy, windy, and mild. Western Washington will be wet at times, while eastern Washington will see less rainfall but windy and warm conditions. Any lingering cold air in eastern areas will quickly be eliminated on Monday. Some areas that only reach the 20s for high temperatures on Saturday could be in the 60s by the middle of next week.

Temperatures
  • Well below normal in the east this weekend.
  • Rapid warming, especially in the east, early next week.
  • Well above average statewide by mid to late next week.

Precipitation
  • A chance of snow in places on Saturday.
  • Western rain and eastern snow possible on Sunday.
  • Rain at times in the west next week.
  • A chance of rain at times in the east next week.

Wind
  • Breezy to windy northeasterly winds on Saturday, especially in eastern areas, Whatcom County, and near the Columbia Gorge.
  • Breezy to windy southwesterly winds at times statewide next week.

Frost Risk Summary
  • This weekend: Moderate in the west, and high in the east.
  • Next week: Moderate to high in the east early, and becoming low to moderate later in the week.

8 to 14 Day Outlook - March 8 to 14
  • Overall, above average temperatures and near to above 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 low to mid 50s and lows in the low to mid 30s.
Weekend
  • Windy. A chance of snow, especially on Sunday.
  • Highs in the upper 20s to 30s.
  • Lows in the 20s to low 30s on Saturday morning, and upper teens to 20s on Sunday morning.
Next Week
  • A chance of rain at times and windy.
  • Highs in the 40s early, and 50s to 60s later in the week.
  • Lows in the mid 20s to mid 30s early, and 30s to low 40s later in the week.

North Central Washington
  • Normal conditions for this time of the year would be highs in the mid to upper 40s and lows in the upper 20s to around 30.
Weekend
  • Breezy. A chance of snow, especially on Sunday.
  • Highs in the 20s to mid 30s.
  • Lows in the 20s on Saturday morning, and mid teens to mid 20s on Sunday morning.
Next Week
  • Breezy. A chance of rain or snow on Monday, and then a chance of rain at times.
  • Highs in the upper 30s to mid 40s early, and 50s later in the week.
  • Lows in the 20s to mid 30s early, and 30s later in the week.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the upper 40s and lows in the low 30s.
Weekend
  • Windy. A chance of snow, especially on Sunday.
  • Highs in the 20s to mid 30s.
  • Lows in the 20s on Saturday morning, and mid teens to mid 20s on Sunday morning.
Next Week
  • Windy. A chance of rain at times.
  • Highs in the upper 30s to 40s early, and 50s to low 60s later in the week.
  • Lows in the mid 20s to mid 30s early, and 30s to around 40 later in the week.

Western Washington
  • Normal conditions for this time of the year would be highs in the mid 50s and lows in the upper 30s to low 40s.
Weekend
  • A chance of rain on Saturday, except a chance of snow in the north.
  • Rain likely on Sunday, except snow possible in the north.
  • Highs in the 40s to low 50s, except upper 30s in the north.
  • Lows in the 30s to low 40s on Saturday morning, and upper 20s to 30s on Sunday morning.
Next Week
  • Rain likely at times and windy.
  • Highs in the mid 40s to mid 50s early, and 50s later in the week.
  • Lows in the 30s to low 40s early, and upper 30s to mid 40s later in the week.

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