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 17 in the Good category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 14 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:

• Sunny today, clear tonight,
• Sunny and a bit cooler Thursday, clear Thursday night,
• Sunny and a bit warmer Friday, then clear at night.
• highs 83-80 warming to 85 Friday lows near 52.
• Mostly sunny and a bit warmer Saturday, Sunday, clear each night,
• Then mostly sunny and a bit cooler Monday and Tuesday, clear Monday night.
• highs 84-80 lows near 53. (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 we are at the end of the pollen season.

 

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Forecast for Roseburg:

• Sunny and a bit warmer this afternoon, clear this evening, partly cloudy late tonight,
• Sunny and a bit cooler Thursday, clear at night,
• Sunny and a bit warmer Friday, clear Friday night,
• highs 85-82 warming to 86 Friday lows near 55.
• Sunny  Saturday, clear at night,
• Sunny and a bit warmer Sunday, clear Sunday night,
• Then sunny and a bit cooler Monday and Tuesday, clear Monday night,
• highs 87-84 lows near 55. (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, mostly clear this evening, mostly cloudy with patchy coastal fog late tonight.
• Mostly cloudy Thursday AM with patchy coastal fog, sunny in the afternoon, clear in the evening,  mostly cloudy with patchy coastal fog Thursday night and Friday AM, sunny in the afternoon, then mostly clear with patchy fog late Friday night.
• highs near 63 lows near near 53.
• Patchy AM fog, mostly sunny Saturday afternoon, partly cloudy Saturday night through Monday, mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs near 63 lows near 53. (seasonal averages high 64 low 53)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today and Thursday, clear both nights,
• Sunny and a bit warmer Friday, then clear at night.
• free air freezing level 15,000 ft. today, 15,000 ft. rising to 16,000 ft. tonight, 16,000 ft. falling to 15,000 ft. Thursday, then 15,000 ft. Thursday night through Friday night.
• highs 73-79 lows 47-49.
• Mostly sunny a bit cooler Saturday and mostly sunny and a bit warmer Sunday, mostly clear both nights,
• Then mostly sunny and a bit cooler Monday and Tuesday, mostly clear Monday night.
• free air freezing level 15,000 ft. Saturday and Saturday night, then 14,000 ft. Sunday through Tuesday,
• highs 78-73 lows 49-46.