Here is my new weekly weather quiz question. What is an“Acre-foot?” Please remember to post your answer at the bottom of this page. An email will not suffice. 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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An upper air low pressure trough (Shaded “U” shape with blue arrows is still in control of our weather, But a high pressure ridge (Shaded “Arch” shape with blue arrows) will fall in behind returning the much missed sunshine. The days 1-3 graphic shows the storm that brought all of the moisture to mix with cold air to produce the icy weather over all of our area. With overnight temperatures remaining well below freezing, I’m afraid more trees and branches will most likely fall. The graphic for days 3-7 shows the next storm headed our way and another one moving toward us next Thursday. For mountain snow conditions at the local ski areas check out their websites or give them a call. With the potential of significant snowfall and mixed precipitation you’d be wise to judge carefully when and if you need to drive during the next 12 hours or so of this storm.

NOTE: If you noticed that your forecasts were not updated here last night through this afternoon there was a very good reason called ” a power outage.” Trees were down in my neighborhood and kept falling down. The power went out early Wednesday evening and wasn’t restored until 4:30 PM today. A big round of applause should be given to the dedicated EWEB repair crews who tackled a GIGANTIC job and succeeded! Some people probably still don’t have their power back, but they need to know that there are many people working feverishly to get the power back on as quickly and safely as possible.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 84 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: YELLOW- Caution is Advised.

Oakridge: YELLOW- Caution is Advised.

*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 FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 9 AM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM SATURDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FREEZE WATCH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY MORNING FOR SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• 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.
• A Blue-Green Algae Health Advisory remains in effect for Agency Lake. Agency Lake is located just north of Upper Klamath Lake near Klamath Falls along Highway 97 in Klamath County. Water monitoring on the lake has confirmed the presence of high levels of blue-green algae and associated toxins that can be harmful to people and animals. Swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing and power boating, should be avoided in areas where blooms are identified. Although toxins are not absorbed through the skin, contact with cells from a bloom can cause skin irritation and a red, puffy rash in individuals with skin sensitivities, or those who develop rashes easily.

 

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

• Mostly cloudy with a slight (20%) chance of evening snow showers, partly cloudy with a slight (20%) chance of snow showers late tonight,
• A mix of clouds and sun and a bit warmer Friday, partly cloudy and cold Friday night,
• A mix of clouds and sun with a slight (20%) chance of snow showers Saturday, mostly cloudy with a (30%) chance of snow showers at night,
• Cloudy with a (40%) chance of AM snow showers, a (40%) chance of rain and snow showers and a bit warmer Sunday afternoon, then just mostly cloudy Sunday night.
• lows 25-22 warming to 30 Sunday night highs 34-39.
• Cloudy and a bit warmer with a good (50%) chance of rain Monday and Monday night,
• Mostly cloudy with rain likely (70%) and a bit warmer Tuesday, a good (50%) chance of rain at night,
• A mix of clouds and sun with a slight (20%) chance of showers and a bit cooler Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night,
• Then mostly cloudy with rain likely (70%) Thursday.
• highs 42-47 cooling to 43 Wednesday lows 42-36. (seasonal averages high 45 low 34)

 

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of rain and snow showers tonight,
• Mostly cloudy with a slight (20%) chance of AM snow showers, just partly cloudy and a bit cooler Friday afternoon and evening, becoming mostly clear late Friday night,
• Patchy freezing fog Saturday AM, partly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of rain and snow showers Saturday night,
• Mostly cloudy with a slight (20%) chance of rain and snow and a bit warmer Sunday, then just mostly cloudy Sunday night.
• lows 32-23 warming to 29 Saturday night and Sunday night highs 39-42.
• Mostly cloudy with a slight (20%) chance of rain and snow Monday AM, a slight (20%) chance of rain and a bit warmer in the afternoon, a (30%) chance of rain at night,
• Rain likely (70%) and a bit warmer Tuesday, mostly cloudy with a (40%) chance of showers Tuesday night,
• Mostly cloudy with a (30%) chance of showers Wednesday and at night,
• Then mostly cloudy with a good (50%) chance of rain Thursday.
• highs 44-46 lows 38-35. (seasonal averages high 47 low 36)

 

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

• Mostly cloudy with a slight (20%) chance of coastal showers tonight while a slight (20%) chance of inland rain and snow showers late tonight (snow level 900 ft.),
• Mostly cloudy with a slight (20%) chance of coastal showers while a slight (20%) chance of inland AM rain and snow showers and a bit cooler Friday (snow level 800 ft.), partly cloudy in the evening, just mostly clear late Friday night,
• Partly cloudy with patchy AM fog and freezing fog Saturday, partly cloudy and a bit warmer in the afternoon, mostly cloudy with a slight (20%) chance of coastal showers while a slight (20%) chance of inland rain and snow showers Saturday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday, then just mostly cloudy at night.
• lows 33-30 warming to 36 Sunday night highs 45-48.
• Mostly cloudy with a slight (20%) chance of rain and a bit warmer Monday, a (40%) chance of rain at night,
• Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, a good (50%) chance of rain Tuesday night,
• Mostly cloudy with a (30%) chance of showers and a bit cooler Wednesday and at night,
• Then mostly cloudy with rain likely (60%) Thursday.
• highs 50-52 cooling back to 50 Thursday lows 36-42. (seasonal averages high 51 low 39)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy this evening with a (40%) chance of snow showers, partly cloudy with a slight (20%) chance of snow showers and cold late tonight,
• A mix of clouds and sun with a slight (20%) chance of snow showers Friday, partly cloudy and very cold Friday night,
• A mix of clouds and sun with a slight (20%) chance of snow showers aSaturday afternoon, mostly cloudy and cold with a slight (20%) chance of snow showers Saturday night,
• Mostly cloudy with a (40%) chance of snow showers and a bit warmer Sunday, then just mostly cloudy at night.
• snow level at the surface tonight through Saturday night, 2,500 ft. Sunday, then free air freezing level at the surface Sunday night.
• lows 16-2 warming to 21 Sunday night highs 20-28.
• Mostly cloudy and a bit warmer with a (40%) chance of snow Monday, cloudy with a good (50%) chance snow Monday night,
• Rain and snow likely (70%) and a bit warmer Tuesday, rain and snow showers likely (70%) Tuesday night,
• A mix of clouds and sun with a (30%) chance of rain and snow showers and a bit cooler Wednesday, mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night,
• Then mostly cloudy with snow and rain likely (70%) Thursday.
• snow level 2,500 ft. Monday, 4,500 ft. Monday night and Tuesday, 4,000 ft. Tuesday night and through Wednesday night, then 3,500 ft. Thursday.
• highs 35-33 lows 32-22 warming to 26 Wednesday night.

 

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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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