Here is my weekly weather quiz question for the last time. What is a “Cap Cloud?” Here is the correct answer. A Cap Cloud is a stationary cloud directly above an isolated mountain peak, with cloud base below the elevation of the peak.  I’ll have a new weekly weather quiz question for you starting Monday.The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

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An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is moving in for a change of weather to wet. An Upper Level High Pressure Ridge (Shaded “Arch” shape with blue arrows) will replace the Low Pressure Trough to bring back the sunshine and warming temperatures next week. The graphics for days 1-3 show the weak frontal system moving in for Saturday. The graphics for days 3-7 show a complex frontal system moving into the Pacific Northwest Tuesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 0 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

 

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Advisories:

• A BEACH HAZARD STATEMENT IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST. THE SNEAKER WAVE THREAT WILL INCREASE SUNDAY AFTERNOON AND EVENING AS A LONG PERIOD NORTHWEST SWELL IMPACTS THE COAST.
• A Health Advisory remains in effect for the Link and Klamath rivers to Keno Dam. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• 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.

 

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Your College Football Forecast:

Today:

Ducks vs Washington State, at Autzen Stadium – Kickoff: 5:00 PM PDT – Partly cloudy 65, a slight (20%) chance of showers, cooling as the game progresses, Wind: SW 5-10 mph.

Beavers vs USC, at Los Angeles Coliseum – Kickoff: 1:00 PM PDT – Sunny 95, cooling to near 84 by the end of the game, wind: SW 5-7 mph.

 

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

• A mix of clouds and sun and much cooler with a good (50%) of chance of showers this afternoon (under 0.10 in. of rain possible), partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a good (50%) chance of showers late tonight (under 0.10 in. of rain possible),
• A mix of clouds and sun Sunday with a (40%) chance of AM showers, a bit cooler with a slight (20%) chance of showers in the afternoon (under 0.10 in. of rain possible), becoming partly cloudy and colder with patchy fog late Sunday night and Monday AM, mostly sunny and a bit warmer Monday afternoon (Columbus Day), then just partly cloudy Monday  night.
• highs 65-67 lows 45-35 warming to 42 Monday night.
• A mix of clouds and sun and a bit cooler with a (40%) chance of showers Tuesday, a good (50%) chance of showers Tuesday night,
• A mix of clouds and sun with a (30%) chance of showers Wednesday, a (40%) chance of showers at night,
• Cloudy with a good (50%) chance of showers and a bit cooler Thursday, showers likely (70%) Thursday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of showers Friday.
• highs 62-56 lows near 40. (seasonal averages high 69 low 43)

 

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Forecast for Roseburg:

• Mostly cloudy and much cooler with a slight (20%) chance of isolated showers this afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers isolated showers tonight (under 0.10 in. of rain possible),
• A (30%) chance of showers Sunday AM (under 0.10 in. of rain possible), partly cloudy and a bit cooler in the afternoon, clear Sunday night,
• Sunny and a bit warmer Monday (Columbus Day), then mostly clear at night.
• highs 66-72 lows 45-40 warming to 43 Monday night.
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday, mostly cloudy with a (30%) chance of showers Tuesday night,
• Partly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night,
• A (40%) chance of showers Thursday, showers likely (70%) at night,
• Then mostly cloudy and a bit cooler with a (30%) chance of showers Friday.
• highs 65-58 lows 42-40 warming back to 42 Thursday night. (seasonal averages high 71 low 46)

 

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

• Mostly cloudy with a (40%) chance of isolated showers and a bit cooler this afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of isolated coastal showers tonight while partly cloudy inland this evening and becoming mostly cloudy with isolated inland showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers (under 0.10 in. of rain possible), partly cloudy and a bit cooler Sunday afternoon, mostly clear at night,
• Sunny and a bit warmer Monday (Columbus Day), mostly clear in the evening, then partly cloudy late Monday night.
• highs 62-60 warming to 66 Monday lows 49-45 warming to 48 Monday night.
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday through Wednesday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Thursday, showers likely (70%) at night,
• Then mostly cloudy and a bit cooler with a good (5%) chance of showers Friday.
• highs 62-59 lows near 46. (seasonal averages high 62 low 47)

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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 and evening, rain and snow showers likely (70%) late tonight (0.10 in. of rain possible, 2 in. of snow possible),
• Mostly cloudy with AM rain and snow showers likely (70%) Sunday, a mix of clouds and sun and a bit cooler with a good (50%) chance of snow showers and a slight (20%) chance of rain showers in the afternoon, becoming mostly clear Sunday night,
• Mostly sunny and a bit warmer Monday (Columbus Day), then partly cloudy at night.
• snow level above 6,500 ft. today, 5,500 ft. tonight, 5,000 ft. Sunday, free air freezing level 7,500 ft. rising to 9,000 ft. Sunday night, 10,000 ft. rising to 12,000 ft. Monday afternoon, then 12,000 ft. falling to 11,000 ft. Monday night.
• highs 47-45 warming to 54 Monday lows 33-30 warming to 35 Monday night.
• A mix of clouds and sun and a bit cooler with a (30%) chance of rain or snow showers Tuesday, mostly cloudy with a (40%) chance of rain or snow showers at night,
• A mix of clouds and sun and a bit cooler with a (40%) chance of rain and snow showers Wednesday, a (30%) chance of rain and snow showers at night,
• Mostly cloudy with a good (50%) chance of rain and snow showers and a bit cooler Thursday, rain and snow showers likely (70%) Thursday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Friday.
• snow level 6,000 ft. Tuesday, 5,000 ft.  Tuesday night, 4,500 ft. Wednesday, 5,000 ft. Wednesday night, 4,500 ft. Thursday, 5,000 ft. Thursday night, then 4,500 ft. Friday.
• highs 49-35 lows 29-27.

 

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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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