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. Note: Don’t forget that this is the weekend when Daylight Saving Time begins. Remember to “Spring Forward” and turn your clocks ahead one hour at bedtime Saturday night. The official change occurs at 2:00 am Sunday. The Fire Department reminds you to check the batteries in your smoke detectors, CO2 detectors and  Radon detector if you have one.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

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

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Advisories:

• A HIGH WIND WARNING IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 2 AM THURSDAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A HIGH WIND WARNING IS IN EFFECT FROM 4 PM WEDNESDAY UNTIL 4 AM THURSDAY FOR THE COAST RANGE OF NORTHWEST OREGON, AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
• A HIGH WIND WARNING IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WIND ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 10 AM THURSDAY FOR JACKSON COUNTY.
• A WIND ADVISORY IS IN EFFECT FROM 4 PM WEDNESDAY UNTIL 10 AM THURSDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY.
• A HIGH WIND WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT FOR THE SOUTH CENTRAL CASCADES, THE SOUTH OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.

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

• Mostly cloudy with rain likely (70%) this evening, a good (50%) chance of showers late tonight (0.10 in. of rain possible),
• Rain and warmer Wednesday afternoon (0.50 in. of rain possible) and breezy (Wind: SE 5-10 mph increasing and shifting to S 15-25 mph gusts to 35 mph in the afternoon), rain (0.75 in. of rain possible) Wednesday night and breezy (Wind: S 15-25 mph gusts to 40 mph),
• Mostly cloudy with AM rain, showers likely (70%) Thursday afternoon (0.25 in. of rain possible) and a bit cooler, a good (50%) chance of showers Thursday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), rain and a bit cooler Friday afternoon, then showers likely (70%) Friday night.
• lows 43-45 cooling to 40 Thursday night warming back to 43 Friday night highs 58-53.
• Mostly cloudy with rain a bit cooler Saturday, rain likely (70%) Saturday night through Monday, then mostly cloudy with a good (50%) chance of showers Monday night and Tuesday.
• highs 50-54 lows 40-37. (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:

• Cloudy with a good (50%) chance of evening rain, rain late tonight (0.10 in. of rain possible) and Wednesday AM, a good (50%) chance of rain and warmer in the afternoon (0.30 in. of rain possible), evening rain likely (70%), rain late Wednesday night (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph),
• AM rain, rain likely (70%) and a bit cooler Thursday afternoon (0.25 in. of rain possible), a slight (20%) chance of evening showers, a (30%) chance of rain late at night (under 0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of rain Friday AM, rain likely (60%) and a bit cooler Friday afternoon, and in the evening, then showers likely (70%) at night.
• lows 43-46 cooling back to 43 Friday night highs 62-57.
• Mostly cloudy and a bit cooler with rain Saturday, rain likely (70%) Saturday night,
• Showers likely (70%) and a bit cooler Sunday, rain Sunday night,
• Mostly cloudy with a (40%) chance of AM rain, showers Monday afternoon, cloudy with a (40%) chance of showers Monday night,
• Then cloudy with a (40%) chance of rain and a bit warmer Tuesday.
• highs 53-50 warming to 56 Tuesday lows near 39. (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 this evening, rain late tonight and Wednesday AM, a good (50%) chance of afternoon showers and very windy (Wind: S 25-40 mph at the shore while S 20-30 mph inland in the afternoon) and warmer Wednesday (0.55 in. of rain possible), rain at night and very windy (Wind: S 35-50 mph at the shore decreasing and shifting to SW 15-25 mph late while S 25-35 mph inland decreasing and shifting to SW 15-20 mph inland late Wednesday night),
• Mostly cloudy with coastal rain likely (70%) Thursday while inland AM rain likely (70%) and a bit cooler Thursday afternoon, a slight (20%) chance of evening showers, a good (50%) chance of rain late Thursday night,
• Mostly cloudy with rain likely (70%) Friday AM, rain in the afternoon, then showers likely (70%) Friday night.
• lows 48-46 highs 60-57.
• Mostly cloudy with rain and a bit cooler Saturday, rain likely (70%) Saturday night,
• Showers and a bit cooler Sunday, rain at night,
• Mostly cloudy with AM rain likely (60%), showers Monday afternoon, cloudy with a (40%) chance of showers Monday night,
• Then cloudy with a good (50%) chance of rain and a bit warmer Tuesday.
• highs 53-50 warming back to 53 Tuesday lows near 44. (seasonal averages high 54 low 41).

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Forecast for the Cascades in Lane County:

• Cloudy with evening rain and snow, a good (50%) chance of rain and snow showers late tonight (0.25 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, 1-4 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, a good (50%) chance of rain and snow showers late at night,
• Mostly cloudy with AM showers likely (70%), rain and snow likely (70%) and a bit cooler Friday afternoon, then showers likely (70%) Friday night.
• snow level 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, then 5,000 ft. Friday and Friday night.
• lows 28-32 cooling back to 28 Thursday night warming to 30 Friday night highs 43-37.
• Mostly cloudy with rain and snow Saturday, rain and snow likely (70%)  Saturday night through Sunday night,
• A good (50%) chance of rain and snow and a bit cooler Monday, a good (50%) chance of rain and snow showers at night,
• Then  mostly cloudy with a good (50%) chance of show showers Tuesday.
• snow level 4,500 ft. Saturday, 3,500 ft. Saturday night and Sunday, 4,000 ft. Sunday night, 3,000 ft. Monday, 3,500 ft. Monday night, then 2,500 ft. Tuesday.
• highs 38-35 lows near 26.

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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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