Here is my weekly weather quiz question for the last time. What is a “Brocken Specter?” Here is the correct answer. A Brocken Specter is an optical phenomenon sometimes occurring at high altitudes when the image of an observer placed between the sun and a cloud is projected on the cloud as a greatly magnified shadow. The shadow’s head is surrounded by rings of color, called a glory. 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 High Pressure Ridge (Shaded “Arch” shape with blue arrows) has taken over for the low pressure trough that brought us the wet weather. That means quite a bit of sunshine and warmer temperatures through the rest of the weekend. The graphics for days 3-7 show a complex frontal system moving in next Sunday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 38 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 35 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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Advisories:

• A Health Advisory has been issued for the Link and Klamath rivers to Keno Dam. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce. 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.
• The Oregon Health Authority issued a Health Advisory 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.
• The Oregon Health Authority has updated the Health Advisory issued July 28 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 now 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 Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Clear 82, cooling to near 74 by the end of the game, Wind: W 5-10 mph.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

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

• Party cloudy with patchy  fog tonight and Sunday AM, partly cloudy and a bit warmer in the afternoon, partly cloudy with patchy fog Sunday night,
• Patchy AM and late night fog, mostly cloudy and a bit warmer Monday and at night,
• Partly cloudy with patchy AM fog, mostly sunny and a bit warmer Tuesday afternoon, then mostly clear Tuesday night.
• lows 45-53 highs 72-77.
• Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Sunny and a bit cooler Thursday, mostly clear at night,
• Mostly sunny Friday AM, partly cloudy and a bit cooler in the afternoon and Friday night,
• Partly cloudy in the AM, then mostly sunny and a bit cooler Saturday afternoon.
• highs 86-75 lows 53-50. (seasonal averages high 74 low 45)

 

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Forecast for Roseburg:

• Partly cloudy this evening, mostly clear late tonight,
• Sunny in the AM, partly cloudy and a bit warmer Sunday afternoon and at night,
• Mostly cloudy in the AM, partly cloudy and a bit warmer Monday afternoon, mostly cloudy in the evening, partly cloudy Monday night,
• Mostly sunny and a bit warmer Tuesday, then mostly clear at night.
• lows 45-54 highs 75-80.
• Mostly sunny and a bit warmer Wednesday and Thursday, mostly clear both nights,
• Partly cloudy and a bit cooler Friday through Saturday,
• highs 86-79 lows 54-56. (seasonal averages high 77 low 50)

 

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

• Mostly cloudy this evening, mostly clear late tonight,
• Partly cloudy and a bit warmer Sunday and in the evening, mostly cloudy late at night and Monday AM, partly cloudy and a bit warmer in the afternoon, mostly cloudy in the evening, party cloudy late Monday night,
• Mostly sunny and a bit warmer Tuesday, then mostly clear at night.
• lows 50-57 highs 66-68.
• Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Mostly sunny and a bit cooler Thursday, partly cloudy at night,
• Partly cloudy and a bit cooler Friday and Friday night,
• Mostly cloudy in the AM, then sunny Saturday afternoon.
• highs 78-66  lows near 56. (seasonal averages high 64 low 49)

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Mostly sunny and a bit warmer Sunday, partly cloudy at night,
• A mix of clouds and sun and a bit warmer Monday, mostly cloudy in the evening, partly cloudy late Monday night.
• Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• free air freezing level 10,000 ft. tonight through Sunday night, 10,000 ft. rising to 12,000 ft. Monday, 12,000 ft. Monday night, 13,000 ft. Tuesday, then 12,000 ft. rising to 14,000 ft. Tuesday night.
• lows 34-42 highs 57-65.
• Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Mostly sunny and a bit warmer Thursday, mostly clear at night,
• Mostly sunny Friday AM, partly cloudy and a bit cooler in the afternoon and Friday night,
• Then mostly sunny Saturday.
•  free air freezing level 14,000 ft. Wednesday through Thursday, then 13,000 ft. Thursday night through Saturday.
• highs 69-72 cooling to 66 Friday and Saturday lows 46-44.

 

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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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