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 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 60 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 54 in the Moderate 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 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 sun breaks and a slight (20%) chance of showers and a bit warmer this afternoon (under 0.10 in. of rain possible), mostly cloudy with patchy fog late tonight,
• Cloudy with patchy AM fog, a slight (20%) chance of rain Thursday afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of rain at night (under 0.10 in. of rain possible),
• Then mostly cloudy with rain Friday and Friday night.
• highs near 50 lows 36-42 cooling to 39 Friday night.
• 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 (snow level 1,000 ft.), 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 48-45 warming to 50 Tuesday lows 36-40. (seasonal averages high 54 low 36)

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Forecast for Roseburg:

• Partly cloudy with a slight (20%) chance of drizzle this afternoon (under 0.10 in. of rain possible), just partly cloudy this evening, mostly cloudy with patchy fog and freezing fog late tonight 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 a (30%) chance of rain Friday, then rain Friday night,
• highs near 52 lows 34-40.
• Mostly cloudy with rain and a bit cooler Saturday and Saturday night,
• Cloudy and a bit cooler with rain and snow likely (70%) Sunday and Sunday night,
• Rain and snow and a bit warmer Monday, 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 and a bit warmer today with a slight (20%) chance of coastal drizzle (under 0.10 in. of rain possible), partly cloudy this evening, mostly cloudy with patchy fog late tonight,
• 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 with a (30%) chance of AM coastal rain with rain in the afternoon while a bit warmer with a (30%) chance of inland rain Friday, then rain at night,
• highs near 52 lows 40-44.
• 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%) 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:

• A mix of clouds and sun with and a bit warmer this afternoon, just partly cloudy tonight,
• A mix of clouds and sun and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of rain and snow in the evening, a (30%) chance of rain and snow Thursday night,
• Mostly cloudy with AM snow, a bit warmer with a rain and snow likely (70%) Friday, then rain and snow  Friday night.
• snow level 3,000 ft. today, free air freezing level 5,000 ft. rising to 5,500 ft.late tonight, 5,000 ft. Thursday, snow level 4,000 ft. Thursday night and Friday, then 4,500 ft. Friday night.
• highs near 38 lows near 23-28.
• 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  3,500 ft. Saturday, 2,500 ft. Saturday night, at the surface Sunday through Monday, 3,000 ft. Monday night, then 4,000 ft. Tuesday.
• highs 34-28 warming to 38 Tuesday lows 22-29.

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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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