Here is my new weekly weather quiz question. What is “a Depression?” 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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A large upper level low (Shaded U shape with blue arrows) is keeping our weather static with morning and late night fog and freezing fog and some afternoon warming. More frontal systems are pushed inland bringing more moisture with them. By Saturday another frontal system approaches the Pacific Northwest. Even more frontal systems line up offshore early next week. Local skiers continue to rejoice. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open. Check their websites for updates.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 106 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Oakridge: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 63 in the Good category measuring Particulate Matter.

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

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Advisories:

• A HIGH SURF ADVISORY IS IN EFFECT UNTIL 4 AM WEDNESDAY 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 a (40%) chance of rain this evening (under 0.10 in. of rain possible), areas of patchy fog with a slight (20%) chance of freezing fog late tonight and Wednesday AM with a slight (20%) chance of AM rain, mostly cloudy and a bit warmer with a slight (20%) chance of rain in the afternoon (under 0.10 in. of rain possible), a slight (20%) chance of rain Wednesday night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of rain and freezing rain Thursday AM, a slight (20%) chance of showers in the afternoon (under 0.10 in. of rain possible), just mostly cloudy with patchy fog  and a slight (20%) chance of freezing fog Thursday night and Friday AM, partly cloudy in the afternoon, mostly cloudy with patchy fog and freezing fog and a slight (20%) chance of rain Friday night.
• lows near 30 highs 40-42 cooling to 39 Friday.
• Patchy fog and freezing fog again Saturday AM, mostly cloudy with a slight (20%) chance of rain in the afternoon, patchy fog and freezing fog late Saturday night and Sunday AM, mostly cloudy in the afternoon, patchy fog and freezing fog Sunday night,
• Mostly cloudy with patchy AM fog and freezing fog in the AM, mostly cloudy in the afternoon, then mostly cloudy with a slight (20%) chance of rain Monday night and Tuesday.
• highs near near 38 lows near 30. (seasonal averages high 46 low 34)

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Home Wood Heating Advisory:

Eugene-Springfield: YELLOW– Caution is Advised.

Oakridge:  YELLOW– Caution is Advised.

*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 a (40%) chance of rain tonight (under 0.10 in. of rain possible, snow level 3,500 ft. late tonight),
• Mostly cloudy with a (30%) chance of rain Wednesday (under 0.10 in. of rain possible, snow level 3,500 ft.), cloudy with a (30%) chance of rain at night (under 0.10 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft.),
• A (30%) chance of AM rain and snow Thursday, mostly cloudy and a bit cooler with a slight (20%) chance of rain Thursday afternoon and at night,
• Just partly cloudy Friday, mostly cloudy with a slight (20%) chance of rain Friday night.
• lows 39-33 warming to 36 Friday night highs 50-46.
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain Saturday, just mostly cloudy Saturday night,
• Partly cloudy with patchy fog and a bit warmer Sunday, partly cloudy at night,
• Partly cloudy with patchy fog and a slight (20%) chance of rain Monday night and Tursday.
• highs 44-48 lows 34-38. (seasonal averages high 49 low 36)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with evening coastal rain likely (70%) and a slight (20%) chance of rain late tonight while a (40%) chance of inland rain tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of rain Wednesday (0.10 in. of rain possible), cloudy with a (40%) chance of  rain and a slight (20%) chance of coastal thunderstorms Wednesday night while a (30%) chance of inland rain at night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler Thursday with a (30%) chance of AM coastal rain and a slight (20%) chance of thunderstorms with a slight (20%) chance of afternoon rain while a (30%) chance of inland rain (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of rain Thursday night,
• Just mostly cloudy Friday, then mostly cloudy with a slight (20%) chance of rain at night.
• lows 43-39 warming to 42 Friday night highs 55-53.
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain Saturday, partly cloudy with a slight (20%) chance of rain Saturday night,
• Mostly cloudy with patchy fog Sunday, partly cloudy at night,
• Partly cloudy with patchy fog and a slight (20%) chance of rain Monday, mostly cloudy with a (30%) chance of rain Monday night,
• Then mostly cloudy with a slight (20%) chance of rain Tuesday.
• highs near 52 lows 39-43. (seasonal averages high 51 low 40).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a (30%) chance of rain and snow this evening, partly cloudy late tonight,
• A mix of clouds and sun with a (30%) chance of rain and snow Wednesday (0.10 in. of rain possible), cloudy with a (40%) chance of rain and snow late at night (0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of AM snow and a bit cooler Thursday afternoon, a slight (20%) chance of evening rain and snow showers, mostly cloudy and cold Thursday night,
• A mix of clouds and sun Friday, then becoming mostly cloudy with a slight (20%) chance of snow Friday night.
• snow level 3,500 ft. tonight, 3,000 ft. Wednesday, 3,500 ft. Wednesday night, 2,500 ft. Thursday, 4,000 ft. Thursday night, free air freezing level 5,000 ft. Friday, then snow level at the surface Friday night.
• lows 26-19 warming to 24 Friday night highs 34-30.
• Mostly cloudy with a slight (20%) chance of snow Saturday, just mostly cloudy at night,
• A mix of clouds and sun Sunday, partly cloudy Sunday night and Monday, then mostly cloudy with a slight (20%) chance of rain and snow Monday night and Tuesday.
• snow level at the surface Saturday, free air freezing level 4,500 ft. Saturday night through Sunday night, 6,000 ft. Monday, snow level 4,500 ft Monday night and Tuesday.
• highs 32-34 lows near 24.

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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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