Here is my new weekly weather quiz question. What is  a “Percolation Path?” 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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An upper level low pressure trough (Shaded “U” shape with blue arrows) still controls our weather and will keep the showers around as it sends another frontal system into Oregon. More storms will follow as a frontal system (position shown is Thursday AM) pushes through Wednesday night and Thursday morning. We will be visited by yet another frontal system moves in Friday. The parade of storms continues with this frontal system on Sunday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 12 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A HIGH WIND WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT FOR THE NORTH OREGON COAST, THE CENTRAL OREGON COAST, THE COAST RANGE OF NORTHWEST OREGON, AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
• A HIGH WIND WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH  WEDNESDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.

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

• Mostly cloudy with rain and a bit cooler today (0.25 in. of rain possible), rain likely (70%) in the evening, a good (50%) chance of showers late at night (0.10 in. of rain possible),
• Mostly cloudy with rain and a bit warmer Wednesday (0.30 in. of rain possible), evening rain likely (70%), rain, possibly heavy at times, late at night (0.50 in. of rain possible),
• Mostly cloudy with AM rain, showers likely (70%) and a bit warmer Thursday, then a good (50%) chance of showers Thursday night.
• highs 48-57 lows 43-46 cooling back to 43 Thursday night.
• Mostly cloudy with showers likely (70%) and a bit cooler Friday and at night,
• Rain likely (60%) Saturday, showers likely (70%) Saturday night,
• Mostly cloudy with rain likely (70%) Sunday, then showers likely (60%) Sunday night and Monday.
• highs 55-52 lows 43-40. (seasonal averages high 55 low 36).

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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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

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Forecast for Roseburg:

• Mostly cloudy with rain and a bit cooler this afternoon (0.10 in. of rain possible, snow level 3,000 ft.), cloudy with a good (50%) chance of evening rain, rain likely (70%) late tonight (0.10 in. of rain possible),
• Rain in the AM, a good (50%) chance of rain and warmer Wednesday (0.30 in. of rain possible), a slight (20%) chance of evening rain, then rain late Wednesday night (0.35 in. of rain possible) and breezy (Wind: S 15-25 mph,
• AM rain, showers Thursday afternoon, then mostly cloudy with a good (50%) chance of showers at night.
• highs 50-60 lows 46-43.
• Mostly cloudy with showers likely (60%) and a bit cooler Friday, and in the evening, rain likely (70%) at night,
• Mostly cloudy with rain Saturday and Saturday night,
• Cloudy with rain likely (70%) Sunday and Sunday night,
• AM rain and snow showers likely (70%), then showers likely (70%) Monday afternoon.
• highs near 57 lows near 43. (seasonal averages high 57 low 39).

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

• Mostly cloudy with rain and a bit cooler this afternoon, cloudy with a good (50%) chance of evening rain, rain late tonight (0.10 in. of rain possible),
• Rain and windy (Wind: S 25-35 mph in the afternoon at the shore while S 15-25 mph inland) and warmer Wednesday (0.55 in. of rain possible), coastal rain at night while evening rain likely (60%) inland and rain late at night (0.80 in. of rain possible) and windy (Wind: S 25-45 mph at the shore decreasing to S 20-25 mph late while S 20-30 mph decreasing to S 15-20 mph inland late Wednesday night),
• Then mostly cloudy with AM rain, showers and a bit cooler Thursday afternoon, then a good (50%) chance of showers Thursday night.
• highs 52-62 cooling to 58 Thursday lows near 48.
• Mostly cloudy with showers likely (70%) Friday and Friday night,
• Rain Saturday, rain and breezy Saturday night through Sunday night,
• Then mostly cloudy with showers likely (60%) Monday.
• highs near 56 lows near 46. (seasonal averages high 54 low 41).

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Forecast for the Cascades in Lane County:

• Increasing clouds with rain and snow this afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), cloudy with evening rain and snow, a good (50%) chance of rain and snow late tonight (0.10 in. of rain possible, 2 in. of snow possible),
• AM rain and snow, rain and just a bit warmer Wednesday afternoon (0.50 in. of rain possible, 2 in. of snow possible), a good (50%) chance of evening showers, rain late Wednesday night,
• Mostly cloudy with AM rain and snow, showers and a bit cooler Thursday afternoon, evening showers, then a good (50%) chance of rain and snow showers late at night.
• snow level 2,500 ft. today, 3,500 ft. tonight, 5,000 ft. rising to 6,500 ft. Wednesday, 7,000 ft. Wednesday night, 5,000 ft. Thursday, then 4,500 ft. Thursday night.
• highs 37-46 lows 29-32 cooling back to 29 Thursday night.
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Friday and Friday night,
• Rain and snow Saturday, rain and snow showers Saturday night,
• Mostly cloudy with rain and snow likely (70%) and a bit cooler Sunday, rain and snow likely (70%) Sunday night, the rain and snow showers likely (70%) and a bit cooler Monday.
• snow level 5,000 ft. Friday, 4,000 ft. Friday night and Saturday, 3,500 ft. Saturday night through Sunday night, then 3,000 ft. Monday.
• highs 42-35 lows near 28.

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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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