Here is my weekly weather quiz question. What is “The Best Track?” And I don’t mean race track. 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) changed our weather pattern returning the rain chances..  The graphics for days 1-3 show the cold front that moved through Oregon and the next one that will move in Saturday . The graphics for days 3-7 show a frontal that will push through the Pacific Northwest Tuesday.

Note: I had 0.09 inches of rain in my rain gauge Thursday which is the first measurable rainfall in my yard since June 15th.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 43 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 63 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 60 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

 

 

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Advisories:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON MONDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR CROOK COUNTY, DESCHUTES COUNTY, GILLIAM COUNTY, GRANT COUNTY, JEFFERSON COUNTY, MORROW COUNTY, SHERMAN COUNTY, UMATILLA COUNTY, UNION COUNTY, WALLOWA COUNTY, WASCO COUNTY, WHEELER COUNTY, AND HOOD RIVER COUNTY..
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL FURTHER NOTICE FOR THE KLAMATH BASIN, THE NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• 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:

Ducks vs Nebraska, at Autzen Stadium – Kickoff: 1:30 PM PDT – Mostly cloudy with a slight chance of isolated showers,  72 warming to 77 by the end of the game.

Beavers vs Minnesota, at Reser Stadium – Kickoff: 7:00 PM PDT- Mostly cloudy with a slight chance of isolated evening showers, 74 then cooling as the game progresses.

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

• Mostly cloudy today with a slight (20%) chance of isolated late afternoon and evening showers, just mostly cloudy late tonight,
• A mix of clouds and sun Sunday AM, mostly sunny and a bit warmer in the afternoon, mostly clear Sunday night,
• Sunny and a bit warmer Monday, then mostly clear at night.
• highs 77-89 lows 55-52 warming to 56 Monday night.
• Mostly sunny and a bit cooler Tuesday, partly cloudy Tuesday night,
• Partly cloudy and a bit cooler Wednesday through Thursday night,
• Then partly cloudy and a bit warmer Friday.
• highs 85-72 warming to 75 Friday lows 54-48. (seasonal averages high 79 low 49)

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Forecast for Roseburg:

• Mostly cloudy with patchy smoke this afternoon, mostly cloudy with patchy smoke and a slight (20%) chance of evening showers, partly cloudy late tonight,
• Partly cloudy with patchy AM smoke, sunny and a bit warmer with patchy smoke Sunday afternoon, clear with patchy smoke at night,
• Sunny with patchy smoke and a bit warmer Monday, mostly clear with patchy smoke in the evening, then partly cloudy with patchy smoke late Monday night.
• highs 82-90 lows 59-56 warming back to 59 Monday night.
• Partly cloudy with patchy smoke and a bit cooler Tuesday and Tuesday night,
• Partly cloudy and a bit cooler with patchy smoke and a slight (20%) chance of thunderstorms Wednesday afternoon and at night,
• Partly cloudy and a bit cooler with patchy smoke Thursday and Thursday night,
• Then partly cloudy with patchy smoke and a bit warmer Friday.
• highs 88-75 warming to 80 Friday lows 58-50. (seasonal averages high 81 low 53)

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

• Mostly cloudy today, mostly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late tonight and Sunday AM, sunny and a bit warmer in the afternoon, clear Sunday night,
• Sunny and a bit warmer Monday, clear in the evening, then partly cloudy late at night.
• highs 65-75 lows 56-52 warming to 54 Monday night.
• Partly cloudy and a bit cooler Tuesday through Thursday,
• Then partly cloudy and a bit warmer Friday.
• highs 67-62 lows 56-50. (seasonal averages high 65 low 51)

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Forecast for the Cascades in Lane County:

• A mix of clouds and sun and a bit warmer with patchy smoke today, mostly cloudy with patchy smoke late tonight,
• Partly cloudy with patchy smoke Sunday AM, mostly sunny and a bit warmer with areas of smoke in the afternoon, mostly clear with areas of smoke at night,
• Sunny and a bit warmer with areas of smoke Monday, then mostly clear with areas of smoke Monday night.
• free air freezing level 14,000 ft. today and tonight, 16,000 ft. Sunday through Monday night.
• highs 66-82 lows 47-53.
• AM sun, partly cloudy and a bit cooler with areas of smoke and a slight (20%) chance of showers and thunderstorms Tuesday afternoon, partly cloudy with areas of smoke and a slight (20%) chance of evening showers and thunderstorms, just partly cloudy with areas of smoke late Tuesday night,
• Partly cloudy with areas of smoke and a bit cooler with a slight (20%) chance of showers and thunderstorms Wednesday afternoon and evening, partly cloudy with areas of smoke at night,
• Partly cloudy with areas of smoke and a bit cooler Thursday and Thursday night,
• Then partly cloudy with areas of smoke and a bit warmer Friday.
• snow level above 8,000 ft. Tuesday through Wednesday night, free air freezing level 11,000 ft. Thursday, then 10,000 ft. Thursday night and Friday.
• highs 76-59 warming to 62 Friday lows 50-36.

 

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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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