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 52 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 39 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 35 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:

• Cloudy with evening rain likely (70%), a (40%) chance of rain late tonight (0.25 in. of rain possible),
• Mostly cloudy with a (40%) chance of AM showers, a bit cooler with a slight (20%) chance of showers Friday afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers in the evening, partly cloudy with a slight (20%) chance of showers late Friday night (under 0.10 in. of rain possible),
• Patchy AM fog, a mix of clouds and sun and a bit cooler Saturday afternoon, becoming cloudy with a good (50%) chance of showers in the evening, rain late at night (0.25 in. of rain possible),
• AM rain likely (70%), a good (50%) chance of showers and a bit cooler Sunday afternoon, then rain likely (70%) Sunday night.
• lows 50-46 warming to 49 Sunday night highs 62-59.
• Mostly cloudy and a bit cooler with rain Monday, showers Monday night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of showers Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, rain likely (70%) at night,
• Then mostly cloudy and a bit warmer with a (40%) 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:

Friday October 21st:

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 October 22nd:

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:

• Cloudy with a (30%) chance of showers tonight (0.15 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon (under 0.10 in. of rain possible), mostly cloudy in the evening, just partly cloudy late at night,
• Mostly cloudy with patchy fog Saturday AM, mostly cloudy and a bit warmer in the afternoon, a (30%) chance of rain in the evening, rain late Saturday night (0.25 in. of rain possible)and Sunday (a bit cooler), then rain likely (70%) at night,
• lows 53-48 warming to 52 Sunday night highs 62-60.
• 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:

• Cloudy with showers likely (70%) this evening, a slight (20%) chance of showers late tonight ( 0.25 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers in the afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of coastal showers at night while a slight (20%) chance of inland showers late Friday night (under 0.10 in. of rain possible),
• Cloudy with AM fog, 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 and Sunday night.
• lows 54-50 warming to 53 Sunday night highs 64-60.
• 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:

• Cloudy with rain this evening (0.50 in. of rain possible), rain likely (70%) late tonight (0.25 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of showers Friday afternoon, mostly cloudy with a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late at night,
• 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, showers likely (70%) and a bit cooler in the afternoon, then cloudy with a good (50%) chance of rain Sunday night.
• snow level above 8,000 ft. tonight, 7,500 ft. Friday, 6,500 ft. Friday night, free air freezing level  7,500 ft. rising to 9,000 ft. Saturday afternoon, snow level 7,000 ft. Saturday night, 6,500 ft. Sunday, then 7,000 ft. Sunday night.
• lows 39-36 highs near 48.
• Mostly cloudy and a bit cooler with rain Monday, showers at night,
• Mostly cloudy with rain or snow showers likely (70%) Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, rain likely (70%) at night,
• Then mostly cloudy with a good (50%) chance of rain Thursday.
• snow level 7,000 ft. Monday, 6,500 ft. Monday night, 6,000 ft. Tuesday and Tuesday night, 6,,500 ft. Wednesday and Wednesday night, then 6,000 ft. 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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