Here is my weekly weather quiz question. What is a “Barber Pole?” (In Meteorology) 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) is going to keep us in normal temperatures for this summer season. Upper level Southwesterly airflow will keep our weather relatively stable. The graphics for days 1-3 show the dry frontal system that pushed through Oregon. The graphics for days 3-7 show no new frontal systems moves into the Pacific Northwest Saturday through next Wednesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 20 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 24 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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Advisories:

•  A Health Advisory continues for Lake Billy Chinook, located 12 miles west of Madras in Jefferson County. Water monitoring has has confirmed the presence of Blue-green Algae and the toxins they produce. These toxin concentrations ca be harmful to humans and animals. 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 sensitivities may experience a puffy, red rash at the affected area. Drinking water directly from these areas of Lake Billy Chinook at this time is especially dangerous. Oregon public health 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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny and a bit cooler this afternoon, clear tonight,
• Sunny and a bit warmer Friday, clear at night,
• Mostly sunny and a bit cooler Saturday, then clear Saturday night.
• highs 82-85 cooling to 83 Saturday lows near 52.
• Sunny Sunday, clear at night,
• Sunny and a bit cooler Monday and Tuesday, clear both nights,
• Then sunny Wednesday.
• highs 83-80 lows near 52. (seasonal averages high 82 low 51)

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Eugene-Springfield Pollen Count

Grass………. High (28)

Trees………. Low (3)

Last Counted: 7/7/17

Data Courtesy of Oregon Allergy Associates.

Note: It would seem the pollen season has ended.

 

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Forecast for Roseburg:,

• Sunny and a bit cooler this afternoon, clear tonight,
• Sunny and a bit warmer Friday, clear Friday night,
• Sunny and a bit cooler Saturday, then clear at night.
• highs 82-86 lows near 55.
• Sunny and a bit cooler Sunday through Tuesday, clear each night,
• Then mostly sunny and slightly warmer Wednesday.
• highs near 84 lows 54-56. (seasonal averages high 84 low 56)

 

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

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

 

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Forecast for the Cascades in Lane County:

• Mostly sunny and a bit warmer this afternoon, clear tonight,
• Mostly sunny and a bit warmer Friday, partly cloudy with a slight (20%) chance of evening showers and thunderstorms, mostly clear late at night,
• Sunny and a bit cooler Saturday, mostly clear Saturday night.
• free air freezing level 15,000 ft. today through Friday, snow level above 8,000 ft. Friday night, then free air freezing level 15,000 ft. Saturday and Saturday night.
• highs 75-79 cooling back to 75 Saturday lows near 48.
• Mostly sunny and a bit warmer Sunday, mostly clear at night,
• Mostly sunny and a bit cooler Monday, Tuesday, and Wednesday, mostly clear each night,
• free air freezing level 14,000 ft. Sunday through Wednesday,
• highs 78-72 lows near 46.