Forecast

Monday November 30

Rain & Snow Watch
 
Starting the last month of 2020 tomorrow.  Many will cheer the day when this year has ended.  Here though, we appreciate every day as a gift.  Our lookout for rain & mountain snow continues.  Mug up.
 
Review of the extended model outlook over the weekend has presented a tiny bit of opportunity for some precip over the next 10 days, mostly for Patrons on Vancouver Island and the NW WA.  The current breezy storm has passed, with showers possible in places today, before an extended dry period begins.  Fog will be in play on & off, depending on strength of east winds out of the Columbia River Gorge and/or ‘down’ the passes.  The PNW should remain dry all this week; fog will expand to more locations as east winds diminish by late week.
 
The first weekend of December should present the next chance for rain/showers, although limited to Vancouver Island area, with additional island rain likely on Mon the 7th.  DRY, with areas of fog for OR, ID, CA during that weekend.  
 
The week of Dec 7 - 11 is looking to turn colder, with a change in pattern beginning develop for the PNW, as change that could bring a winter awakening during the second half of December.   Before hand, by late Mon Dec 7, showers should begin to cover the far NW area of WA, then expand to most of western WA by mid-week or Fri Dec 11.  Some precip over OR possible by Wed Dec 9, with temperatures turning chilly.  FROST possible Thu morning, the 10th.  Late Friday Dec 11 is trending damp for much of the PNW, and another notch colder.  
 
The weekend of Dec 12,13 is charting rather dry, with lingering showers as the late Fri system moves east of the continental divide. A snow shower Sat east of the Cascades & for ID, MT, WY.  As the following week begins, we are noticing model solutions finally tipping towards a regionally wet, rather than dry, AND COLDER, pattern.  Various solutions present for that week — all of them ushering in lowering freezing levels and a decent amount of rainfall/mountain snow.  The Dec 13 system could begin this, or the big turn may hold off until the 15th.  Either way, the upper level winds are trending towards notably colder surface conditions, so we may be monitoring our first surface, or nearly so, snow fall.  Will this verify?  Keep your Mug handy.  We may have interesting wx for the Dec 15-21 period and beyond.  
 
“When all is said and done, more is said than done.” 
 
-Rufus
 
 
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Rufus La Lone

Rufus graduated with honors in Biology from California State University Humboldt and completed a Master’s degree in Entomology at Oregon State University.

Beginning in 1979, Rufus has focused on developing environmentally sound management programs for insects on small fruits and stored grain products.

Since the early part of his scientific career, Rufus has been an advocate for the practical application of meteorology in the life sciences. For nearly 30 years, he has prepared weather forecasts for friends and colleagues. In 1994, Rufus initiated his virtual Weather Café®.

The Weather Cafe® provides uniquely informative long-range forecasts for specific patrons in the Pacific Northwest. It is a free service for patrons from British Columbia to northern California.

In the spring of 2005, the Council of the American Meteorological Society elected Rufus as a full member of the Society – a long time personal goal.