AgWeatherNet Weekly Weather Outlook for November 27 to December 5, 2014

Unseasonably Mild on Thanksgiving Day; Much Colder This Weekend

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

A changeable and potentially eventful weather period is expected in the coming days, as we transition from November to December. Above normal temperatures and breezy conditions should continue on Thanksgiving Day and into Friday, while rain spreads from the west on Thursday to the eastern border areas on Friday. A sharp cold frontal passage on Friday night or Saturday morning will cause a dramatic weather change for the weekend. Conditions are likely to be drier but notably cooler on Saturday. Highs may struggle to reach the 30s in cold areas by Sunday, while lows could fall to below 20 degrees in spots.

The weather beyond Sunday morning remains rather uncertain, although it could potentially be a difficult travel day for some areas if a moist storm from the south spreads precipitation over the cold air at the surface. Unsettled weather could linger into early next week, although conditions should warm up by the middle of next week.

Temperatures
  • Warmer than normal through Friday.
  • Much colder this weekend.
  • Milder later next week.

Precipitation
  • Rain in the west on Thanksgiving Day and Friday, with rain likely in eastern border areas on Friday.
  • A chance of western rain and eastern snow or mixed precipitation developing later on Sunday or Monday.
  • A chance of rain at times later next week.

Wind
  • Breezy at times through the period.

Frost Risk Summary
  • This Holiday weekend: Low on Thanksgiving and Friday mornings, and moderate on Saturday morning, and then high on Sunday morning.
  • Next week: High early in the week, and then decreasing later next week.

10 to 16 Day Outlook - December 6 to December 12
  • Overall, above average temperatures and near to above average rainfall 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 40s and lows in the upper 20s to around 30.
Holiday Weekend
  • Mostly dry. A slight chance of rain through Friday, and then a slight chance of snow on Sunday.
  • Highs in the 30s to mid 40s on Saturday, and upper 20s to mid 30s on Sunday.
  • Lows in the upper 20s to 30s on Saturday morning, and upper teens to mid 20s on Sunday morning.
Next Week
  • Mostly dry. A chance of rain or snow on Monday.
  • Highs in the 30s on Monday, and then warmer.
  • Lows in the upper teens to 20s on Monday morning, and then warmer.

North Central Washington
  • Normal conditions for this time of the year would be highs in the upper 30s and lows in the mid to upper 20s.
Holiday Weekend
  • A chance of rain through Friday, and then a slight chance of snow later on Sunday.
  • Highs in the upper 20s to 30s on Saturday, and mid 20s to low 30s on Sunday.
  • Lows in the mid teens to mid 20s on Saturday morning, and teens to low 20s on Sunday morning.
Next Week
  • A chance of snow on Monday, and then a chance of rain or snow at times.
  • Highs in the upper 20s to 30s on Monday, and then warmer.
  • Lows in the upper teens to mid 20s on Monday morning, and then warmer.

Eastern Washington
  • Normal conditions for this time of the year would be highs in the upper 30s to around 40 and lows in the upper 20s.
Holiday Weekend
  • Rain on Friday, with a chance of snow or mixed precipitation on Sunday.
  • Highs in the 30s to around 40 on Saturday, and low to mid 30s on Sunday.
  • Lows in the upper 20s to 30s on Saturday morning, and mid teens to mid 20s on Sunday morning.
Next Week
  • A chance of snow or possibly rain on Monday, and then a chance of rain later next week.
  • Highs in the 30s on Monday, and then warmer.
  • Lows in the upper teens to mid 20s on Monday morning, and then warmer.

Western Washington
  • Normal conditions for this time of the year would be highs in the upper 40s to around 50 and lows in the mid to upper 30s.
Holiday Weekend
  • Rain on Thanksgiving Day and into Friday, and then a chance of rain or snow later on Sunday.
  • Windy in Whatcom County on Friday night.
  • Highs in the upper 30s to 40s on Saturday, and mid 30s to mid 40s on Sunday.
  • Lows in the 30s to around 40 on Saturday morning, and mid 20s to low 30s on Sunday morning.
Next Week
  • A chance of rain at times.
  • Highs in the 40s on Monday, and then warmer.
  • Lows in the upper 20s to 30s on Monday morning, and then warmer.

The AgWeatherNet team wishes you a safe and Happy Thanksgiving!
Washington State University