Here is my weekly weather quiz question. What is an “Active Storage Capacity?”  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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The Jet Stream (Shaded area with blue arrows) continues to bring westerly airflow our way. That means a continuation of  the ocean moisture feed to the Pacific Northwest. A front brought wet weather today. Short-lived High Pressure drys us out a little Friday afternoon through Saturday afternoon, but you can see on days 3 through 7 a series of frontal systems will march into the Pacific Northwest.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 36 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

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

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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.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Advisories:

• A Blue-green Algae Health Advisory has been issued for Howard Bay located in Upper Klamath Lake. 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. Cell counts in other parts of the lake were low.
• A Permanent Health Advisory is 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 and a bit cooler with a slight (20%) chance of showers this afternoon (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers this evening, patchy fog with a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
• Patchy AM fog, a mix of clouds and sun and a bit cooler Saturday afternoon, becoming mostly cloudy with a good (50%) chance of rain in the evening, rain with patchy fog late at night (0.25 in. of rain possible),
• AM rain likely (70%) with patchy fog, rain likely (70%) and a bit cooler Sunday afternoon, then a good (50%) chance of rain Sunday night.
• highs 62-56 lows 46-49.
• Cloudy with AM rain, a bit cooler with a good (50%) chance of showers Monday afternoon, showers Monday night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of rain Tuesday, mostly cloudy with a good (50%) chance of rain Tuesday night and Wednesday, rain likely (70%) at night,
• Then mostly cloudy and a bit warmer with a good (50%) chance of rain Thursday.
• highs 57-60 lows 46-50 cooling to 45 Wednesday night. (seasonal averages high 62 low 40)

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Your College Football Forecast:

Today:

Ducks vs California at California Memorial Stadium, Berkeley, CA – Kickoff 7:30 PM – Partly cloudy 66 and cooling with increasing clouds as the game progresses, Wind WSW 5-10 mph.

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Saturday:

Beavers vs Washington at Husky Stadium, Seattle, WA – Kickoff 3:30 PM – Partly cloudy, more clouds and a slight chance of showers that will increase throughout the game 58 and cooling as the game progresses, Wind S 5 mph.

 

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Forecast for Roseburg:

• Mostly cloudy and a bit cooler with a (40%) chance of showers this afternoon (under 0.10 in. of rain possible), slight (20%) chance of evening showers, just partly cloudy with patchy fog late tonight and Saturday AM, mostly cloudy and a bit warmer in the afternoon, a (30%) chance of rain in the evening, a good (50%) chance of rain late Saturday night (0.25 in. of rain possible),
• AM rain likely (70%) Sunday, rain and a bit cooler in the afternoon, rain likely (70%) in the evening, then rain late at night,
• highs 62-60 lows 48-52.
• Mostly cloudy with rain and a bit cooler Monday, showers Monday night,
• Mostly cloudy and a bit warmer with showers likely (60%) Tuesday and at night,
• Mostly cloudy with a (20%) chance of showers and a bit warmer Wednesday, rain likely (60%) at night,
• Then mostly cloudy and a bit warmer with a (30%) chance of rain Thursday.
• highs 58-63 lows 48-46. (seasonal averages high 64 low 44)

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

• Mostly cloudy with a (30%) chance of showers of inland showers this afternoon (under 0.10 in. of rain possible), mostly cloudy with a (30%) chance of coastal showers tonight with patchy fog late while a slight (20%) chance of inland evening showers (under 0.10 in. of rain possible),
• Partly cloudy with AM fog, mostly cloudy with a slight (20%) chance of coastal rain Saturday afternoon, coastal rain at night while inland evening rain and inland rain likely (70%) late Saturday night (0.25 in. of rain possible),
• Then mostly cloudy and a bit warmer with rain Sunday, cloudy with evening rain likely (70%), then a good (50%) chance of rain Sunday night.
• highs 64-60 lows 50-53.
• Mostly cloudy with rain and a bit cooler Monday, showers Monday night and Tuesday, showers likely (70%) Tuesday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday, rain likely (60%) Wednesday night,
• Then mostly cloudy with a (40%) chance of rain Thursday.
• highs near 60 lows 50-52 cooling to 50 Wednesday night. (seasonal averages high 60 low 46)

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Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with a good (50%) chance of showers this afternoon (0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late tonight,
• Just partly cloudy and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of evening rain, a good (50%) chance of rain late Saturday night,
• Cloudy with a good (50%) chance of rain Sunday AM, rain likely (70%) and a bit cooler in the afternoon, then mostly cloudy with a good (50%) chance of rain Sunday night.
• snow level 8,000 ft. today, 7,000 ft. rising to 8,000 ft. late tonight, free air freezing level  7,000 ft. rising to 8,000 ft. Saturday afternoon, snow level 7,000 ft. Saturday night, 6,500 ft. Sunday, then 7,000 ft. Sunday night.
• highs 50-53 cooling to 48 Sunday lows 34-38.
• Mostly cloudy and a bit cooler with rain likely  in the AM, showers likely (70%) Monday  afternoon, rain at night,
• Mostly cloudy with a good (50%) chance of showers Tuesday, a good (50%) chance of rain Tuesday night and Wednesday, rain likely (70%) at night,
• Then mostly cloudy with a good (50%) chance of rain Thursday.
• snow level 6,500 ft. and Monday night, 6,000 ft. Tuesday, 6,500 ft. Tuesday night, then 7,500 ft. Wednesday through Thursday.
• highs 46-44 warming to 47 Thursday lows 35-30.
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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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