Here is my new weekly weather quiz question. What is “Active Conservation Storage?” 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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Another upper level low is moving through the Pacific Northwest. A powerful frontal system slammed into Oregon Monday bringing rain and high winds. There was significant tree and power line damage in scattered areas. The next storm moving in today, but it isn’t as strong. (You can see it connected to Monday’s frontal system.). Local skiers are still celebrating. The mountains have a lot of new snow and Willamette Pass, Hoodoo and Mt. Ashland are all open, with night skiing starting today at Hoodoo. Check their websites for updates.

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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 10 in the Good category measuring Particulate Matter.

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

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

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Advisories:

• A COASTAL FLOOD WATCH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A WINTER STORM WARNING IS IN EFFECT FROM TONIGHT THROUGH WEDNESDAY NIGHT FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF RANGE OF NORTHWEST OREGON, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE NORTHERN OREGON CASCADES.
• A WINTER STORM WARNING IS IN EFFECT FROM 6 PM TONIGHT THROUGH 4 AM THURSDAY FOR THE CASCADES IN LANE COUNTY.
• A HIGH SURF ADVISORY IS IN EFFECT FOR TONIGHT FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A HIGH SURF ADVISORY IS IN EFFECT FROM 5 PM TODAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WARNING CONTINUES FOR THE PUDDING RIVER AT AURORA AND THE TUALATIN RIVER AT FARMINGTON.
• A FLOOD WARNING CONTINUES FOR  THE SOUTH FORK OF THE COQUILLE RIVER AT COQUILLE IN COOS COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM WEDNESDAY FOR THE DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.

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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 this afternoon, showers tonight (0.25 in. of rain possible),
• Am showers, mostly cloudy rain and a bit cooler Wednesday afternoon (0.50 in. of rain possible), showers Wednesday night (0.25 in. of rain possible),
• Cloudy and a bit cooler with a good (50%) chance of showers Thursday, then a good (50%) chance of rain and snow showers (snow level 1,500 ft.) Thursday night (Christmas Eve)
• highs 47-42 lows 37-33.
• Mostly cloudy with a slight (20%) chance of rain and snow showers (snow level 1,000 ft.) Friday (Christmas Day), partly cloudy at night,
• Partly cloudy Saturday and Saturday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday, rain likely (60%) Sunday night,
• Then cloudy with a good (50%) chance of showers Monday.
• highs 40-44 lows 29-35. (seasonal averages high 45 low 33)

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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:

• Showers likely (70%) this AM, showers and cooler this afternoon (0.25 in. of rain possible, snow level 3,000 ft. rising to 3,500 ft. this afternoon), evening showers, rain and snow showers late tonight (0.20 in. of rain possible, 1-2 in. of snow possible, snow level 3,500 ft. falling to 2,500 ft. late at night),
• AM rain and snow showers and a bit cooler Wednesday, rain and snow and a bit cooler Wednesday afternoon (0.25 in. of rain possible, snow level 2,000 ft.), rain and snow Wednesday night (0.25 in. of rain possible, snow level 900 ft.),
• Mostly cloudy with AM snow and rain likely(70%), snow and rain showers a bit cooler Thursday afternoon, then cloudy with a (40%) chance of rain and snow showers Thursday night (Christmas Eve).
• highs 48-42 lows 39-32.
• Mostly cloudy with a (30%) chance of rain and snow showers Friday (Christmas Day), mostly cloudy with patchy fog Friday night and Saturday AM, partly cloudy in the afternoon, mostly cloudy Saturday night,
• Mostly cloudy and a bit warmer with a (40%) chance of rain Sunday, evening rain likely (70%), rain and snow likely (70%) late Sunday night,
• Then Mostly cloudy with showers likely (70%) Monday.
• highs 42-38 warming to 44 Sunday and Monday lows 30-37. (seasonal averages high 47 low 36)

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

• Mostly cloudy and cooler with AM showers likely (70%), showers this afternoon (0.25 in. of rain possible) and breezy (Wind: SW 15-25 mph increasing W 25-35 mph this afternoon at the shore while W 15-25 mph this afternoon inland), showers and cooler late tonight (0.20 in. of rain possible) and windy (Wind: NW 25-35 mph shifting W 15-25 mph by evening at the shore while W 15-25 mph decreasing to W 10-15 mph late at night),
• Mostly cloudy with AM showers, rain and a bit cooler Wednesday afternoon (0.35 in. of rain possible), evening rain, coastal showers with a slight (20%) chance of thunderstorms while evening inland rain and showers likely with a slight (20%) chance of thunderstorms late at night
• Mostly cloudy with showers likely (70%) and a slight (20%) chance of thunderstorms Thursday AM, showers and a bit cooler Thursday afternoon with a slight (20%) chance of coastal thunderstorms while showers and snow showers likely (70%) inland (snow level 1,500 ft.), evening rain and showers likely (70%) with a slight (20%) chance of thunderstorms inland, rain and snow showers likely (60%) in the evening, a (40%) chance of rain and snow showers late at night (Christmas Eve).
• highs 50-46 lows 42-37.
• Mostly cloudy with a (40%) chance of showers and a bit warmer Friday (Christmas Day), just mostly cloudy with patchy fog Friday night and Saturday AM, then partly cloudy in the afternoon, just mostly cloudy Saturday night,
• Mostly cloudy with a good (50%) chance of rain Sunday, rain likely (60%) Sunday night,
• Then showers likely (70%) Monday.
• highs near 48 lows 37-42. (seasonal averages high 51 low 40).

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Forecast for the Cascades in Lane County:

• AM snow, rain and snow and a bit warmer this afternoon (0.50 in. of rain possible, 3-6 in. of snow possible), evening rain and snow showers, snow showers late tonight (0.75 in. of rain possible, 6-10 in. of snow possible) and breezy (Wind: W 15-25 mph gusts 35 mph to 45 mph in the evening),
• Cloudy with AM snow showers, a bit cooler with snow Wednesday afternoon(5-9 in. of snow possible), snow showers and cold Wednesday night,
• Mostly cloudy and a bit cooler with snow showers likely (70%) Thursday, then cloudy with a good (50%) chance of snow showers Thursday night (Christmas Eve).
• snow level 2,500 ft. today, 3,000 ft. this evening, then at the surface late tonight through Thursday night,
• highs 33-24 lows 22-18.
• Mostly cloudy and a bit cooler with a (30%) chance of snow showers Friday (Christmas Day), just partly cloudy Friday night,
• Just partly cloudy and a bit warmer Saturday, mostly cloudy Saturday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Sunday, rain and snow likely (70%) at night,
• Then cloudy and just a bit cooler with a good (50%) chance of snow showers Monday.
• snow level at the surface Friday, free air freezing level at the surface Friday night, 4,500 ft. Saturday, 4,500 ft. Saturday night, snow level 4,500 ft. Sunday, 3,500 ft. Sunday night, then 2,500 ft. Monday.
• highs 24-32 cooling to 30 Monday lows 26-18.

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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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