Here is my weekly weather quiz question. What is  “Aphelion?”  Please remember to post your answer at the bottom of this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

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The Upper Air flow (Shaded area with blue arrows) is bringing in more moisture from the Pacific Ocean. The graphic for days 1-3 shows the front moving southward through Oregon. The graphic for days 3-7 shows frontal movement continuing through next Tuesday. For mountain snow conditions at the local ski areas check out their websites or give them a call.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 5 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 0 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Advisories:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON WEDNESDAY FOR THE NORTHERN OREGON CASCADES.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with a good (50%) chance of scattered showers tonight (under 0.10 in. of rain possible),
• Cloudy with a (40%) chance of scattered AM showers, a slight (20%) chance of showers and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible), mostly cloudy with patchy fog late Wednesday night,
• Cloudy with patchy AM fog and a slight (20%) chance of rain, a good (50%) chance of rain Thursday afternoon (under 0.10 in. of rain possible) and at night (under 0.10 in. of rain possible),
• Then mostly cloudy with rain Friday and Friday night.
• lows 36-40 highs near 50.
• Mostly cloudy and a bit cooler with rain Saturday and Saturday night,
• Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Sunday, cloudy with a good (50%) chance of showers Sunday night,
• Then mostly cloudy and a bit warmer with rain likely (70%) Monday through Tuesday.
• highs 50-47 lows 42-38. (seasonal averages high 53 low 36)

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of evening showers, mostly cloudy late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM drizzle, partly cloudy with a slight (20%) chance of drizzle Wednesday afternoon (under 0.10 in. of rain possible), just partly cloudy in the evening, mostly cloudy with patchy fog and freezing fog late Wednesday night and Thursday AM, mostly cloudy and a bit warmer in the afternoon, a slight (20%) chance of rain late at night (under 0.10 in. of rain possible),
• Mostly cloudy with rain Friday and Friday night,
• lows 36-34 warming to 40 Friday night highs near 52.
•  Mostly cloudy with rain and a bit cooler Saturday and Saturday night,
• Cloudy and a bit cooler with rain and snow likely (70%) Sunday, mostly cloudy with rain and snow likely (70%) at night and Monday (a bit warmer), rain likely (60%) Monday night,
• Then cloudy and a bit warmer with a (40%) chance of rain Tuesday.
• highs 50-47 warming to 52 Tuesday lows 37-42. (seasonal averages high 56 low 38)

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Forecast for The South Central Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with a slight (20%) chance of evening showers, a slight (20%) chance of drizzle late tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer Wednesday with a slight (20%) chance of coastal drizzle (under 0.10 in. of rain possible), partly cloudy in the evening, mostly cloudy with patchy fog late Wednesday night,
• Patchy AM fog, mostly cloudy Thursday afternoon, a slight (20%) chance of rain late Thursday night (under 0.10 in. of rain possible),
• Then mostly cloudy and a bit warmer with rain Friday and at night,
• lows 40-44 highs near 52.
• Mostly cloudy and a bit cooler with rain Saturday and Saturday night,
• Cloudy and a bit cooler with rain and snow likely (70%) Sunday, rain likely (70%) at night,
• Mostly cloudy with rain and a bit warmer Monday, then rain likely (70%) and breezy Monday night and Tuesday.
• highs 49-52 lows 38-46. (seasonal averages high 54 low 41)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with evening snow showers likely (70%), a good (50%) chance of snow showers late tonight (1-3 in. of snow possible),
• A mix of clouds and sun with a good (50%) chance of AM snow showers, a slight (20%) chance of snow showers and a bit warmer Wednesday afternoon, just partly cloudy at night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain and snow Thursday afternoon, mostly cloudy with a slight (20%) chance of rain and snow Thursday night,
• Then mostly cloudy and a bit warmer with a rain and snow Friday and Friday night.
• snow level 2,500 ft. tonight, at the surface Wednesday, free air freezing level 4,500 ft. Wednesday night, snow level 3,500 ft. Thursday, 3,000 ft. Thursday night, 3,500 ft. Friday, then 3,500 ft. Friday night.
• lows near 19-27 highs near 37.
• Mostly cloudy and a bit warmer with a rain and snow Saturday, snow Saturday night,
• Mostly cloudy and a bit cooler with snow showers likely (70%) Sunday and at night,
• Cloudy with snow likely (70%) and a bit warmer Monday, rain and snow Monday night,
• Then mostly cloudy with rain and snow likely (70%) Tuesday.
• snow level  3,000 ft. Saturday and Saturday night, at the surface Sunday through Monday, 3,000 ft. Monday night, then 4,500 ft. Tuesday.
• highs 34-28 lows 23-29.

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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 and Lane County news on-line at eugenedailynews.com.

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