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Sorry, no winner this week. Here is my weekly weather quiz question for the last time. What is the “Pacific Decadal Oscillation?” Here is the correct answer. “(Abbrev. PDO) The Pacific Decadal Oscillation – a recently described pattern of climate variation similar to ENSO though on a timescale of decades and not seasons. It is characterized by SST anomalies of one sign in the north-central Pacific and SST anomalies of another sign to the north and east near the Aleutians and the Gulf of Alaska. It primarily affects weather patterns and sea surface temperatures in the Pacific Northwest, Alaska, and northern Pacific Islands.” I’ll have another weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good Luck!
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Cold high pressure (shaded “Arch” shape) moves over the Pacific Northwest. That ridge aloft along with high pressure (Blue “H”) at the surface will keep storm systems away from the Pacific Northwest.
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Advisories: A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE CENTRAL WILLAMETTE VALLEY, INCLUDING SALEM. A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE CENTRAL WILLAMETTE VALLEY, INCLUDING SALEM. A FREEZE WARNING IS IN EFFECT FROM 1 AM UNTIL 9 AM SUNDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM SUNDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Patchy fog and freezing fog this AM, mostly cloudy this afternoon with some sun breaks and lingering patchy fog, partly cloudy this evening, mostly cloudy with patchy fog and freezing fog tonight and Sunday AM, partly cloudy in the afternoon and evening, mostly cloudy with patchy fog and freezing fog Sunday night and Monday AM, then partly cloudy in the afternoon and Monday night with patchy fog and freezing fog late highs 38-42 lows 22-29. Mostly cloudy with patchy AM fog and freezing fog, partly cloudy Tuesday afternoon, mostly clear Tuesday night, mostly cloudy AM fog and freezing fog, partly cloudy Wednesday afternoon and Wednesday night with patchy fog and freezing fog again late and Thursday AM, then just partly cloudy Thursday afternoon highs near 48 lows 32-35. (seasonal averages high 47 low 34)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with patchy fog and freezing fog early this AM, partly cloudy this afternoon, partly cloudy with patchy fog and freezing fog late tonight and Sunday AM, partly cloudy in the afternoon, partly cloudy with areas of patchy fog and freezing fog late Sunday night, and Monday AM, mostly sunny Monday afternoon, mostly clear with areas of patchy fog and freezing fog late Monday night highs 40-48 lows 23-29. Patchy AM fog and freezing fog Tuesday, mostly sunny in the afternoon with some lingering patchy fog, patchy evening fog, clear with areas of fog and freezing fog late Wednesday night and Thursday AM, sunny in the afternoon, then partly cloudy with patchy fog and freezing fog late night and early Friday AM, then partly cloudy Friday with lingering patchy fog in the afternoon highs near 48 lows 32-30 warming to 33 Thursday night. (seasonal averages high 49 low 36)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy today, partly cloudy tonight through Monday, then clear Monday night night highs 45-52 lows 29-38. Mostly sunny Tuesday and Wednesday with clear nights, sunny Thursday, then partly cloudy Thursday night and Friday highs 50-48 warming to 52 Friday lows near 40-35 warming to 39 Thursday night. (seasonal averages high 51 low 40)
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Forecast for the Cascades of Lane County: Partly cloudy this AM, mostly cloudy this afternoon, partly cloudy tonight through Monday night free air freezing level at the surface today through Sunday night, 3,500 ft. Monday, then 6,000 ft. Monday night highs 30-26 warming to 34 Monday lows 13-22. Partly cloudy Tuesday AM, then mostly sunny Tuesday afternoon, Wednesday, Thursday, and Friday with mostly clear to partly cloudy skies each night free air freezing level 8,000 ft. Tuesday, 10,000 ft. Tuesday night through Thursday night, then 9,000 ft. Friday highs 43-46 cooling to 40 Friday lows 27-25.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
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