Here is my weekly weather quiz question. What is an “Anemometer?” 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 (Shaded “U”shape with blue arrows) currently off the California coast will move across the Pacific Northwest. The graphics for days days 1-3 show a weak frontal system moving over the Pacific Northwest tonight. An Upper Level High Pressure Ridge (Shaded “Arch”shape with blue arrows) takes over for warming Saturday and Sunday. The graphics for days 3-7 show frontal systems approaching the coast Sunday and next Thursday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 28 in the Good category measuring Ozone.

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

Cottage Grove: The Air Quality Index is 33 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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Advisories:

• The Oregon Health Authority has issued a Health Advisory for Odel Lake, located 75 miles southeast of Eugene off highway 58  in the northwest corner of Klamath County. Water monitoring has confirmed that the level of blue-green algae toxins are below guideline values for human exposure. People should avoid swallowing water while swimming or inhaling water droplets as a result of high-speed water activities , such as water skiing or power boating, in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sessitivities may experience a puffy, red rash at the affected area.
• 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.
• The Oregon Health Authority has updated the Health Advisory issued June 30 for Lake Billy Chinook, located about 12 miles west of Madras in Jefferson County. The update lifts the advisory on those areas of the Deschutes and Crooked River of Lake Billy Chinook arms affected by the advisory, and confines the advisory on the Metolius Arm to Perry South Cove. Water monitoring has confirmed that the level of blue-green algae toxins are below guideline values for human exposure. However, OHA recommends that people remain cautious when using the lake, particularly with pets because toxins are still well above the very low exposure levels established for dogs.

 

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

• Clear tonight,
• AM clouds, sunny and a bit warmer Friday afternoon, clear at night,
• Sunny and a bit warmer Saturday and Sunday, clear both nights.
• lows 54-52 warming back to 54 Saturday night and Sunday night highs 85-90.
• Sunny Monday, clear at night,
• Sunny and a bit warmer Tuesday and Wednesday, clear both nights,
• Then sunny and slightly cooler Thursday.
• highs 90-93 cooling to 92 Thursday lows near 55. (seasonal averages high 84 low 52)

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Eugene-Springfield Pollen Count
Grass………. Moderate (5)
Trees………. Low (0)
Last Counted: 7/22/17
Data Courtesy of Oregon Allergy Associates.
Note: It would seem the pollen season just about over.

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Forecast for Roseburg:

• Clear this evening, partly cloudy late tonight,
• AM clouds, sunny and a bit warmer Friday afternoon, clear at night,
• Sunny and a bit warmer Saturday and Sunday, then clear each night.
• lows 57-60 highs 86-93.
• Sunny Monday, Tuesday (a bit warmer), and Wednesday, clear each night,
• Then sunny and a bit cooler Thursday.
• highs 93-95 lows 62-59. (seasonal averages high 86 low 57)

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

• Partly cloudy this evening, mostly cloudy with patchy coastal fog tonight,
• Mostly cloudy with patchy coastal fog Friday AM, partly cloudy and a bit warmer in the afternoon, clear in the evening, mostly cloudy with patchy fog late Friday night,
• Mostly cloudy with patchy AM fog, sunny and a bit warmer Saturday afternoon, clear at night with patchy coastal fog,
• Patchy AM fog, sunny and a bit warmer Sunday afternoon, then clear Sunday night.
• lows 54-56 highs 63-66.
• Sunny and a bit cooler Monday, mostly clear with patchy fog Monday night and Tuesday AM, mostly sunny and a bit warmer in the afternoon, mostly clear Tuesday night,
• Mostly sunny and a bit warmer Wednesday, mostly clear at night,
• Then sunny with patchy fog Thursday afternoon.
• highs 64-66 lows near 55. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny and a bit warmer Friday and Saturday, clear both nights,
• Mostly sunny Sunday, then mostly clear Sunday night.
• free air freezing level above 12,000 ft. tonight through Sunday night.
• lows 49-52 highs 76-79.
• Mostly sunny Monday, mostly clear at night.
• Mostly sunny Tuesday AM, partly cloudy in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday, clear at night,
• Then sunny Thursday.
• free air freezing level above 12,000 ft. Monday through Thursday.
• highs 82-84 cooling back to 82 Thursday lows 54-52.

 

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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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