Here is my weekly weather quiz question. What is “Aurora Australis?” 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 take over for the foreseeable future. The graphics for days 3-7 show no frontal systems attempting to break through high pressure to get into the Pacific Northwest through next Wednesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 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 13 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Advisories:

• 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:

• Patchy AM fog, partly cloudy and a bit warmer this afternoon, partly cloudy tonight and Friday AM, mostly sunny and a bit warmer in the afternoon, partly cloudy Friday night,
• Partly  cloudy and a bit cooler Saturday, then mostly clear at night.
• highs 70-75 cooling to 73 Saturday lows 45-47 cooling to 45 Saturday night.
• Mostly sunny and a bit warmer Sunday, clear Sunday night,
• Sunny Monday, clear at night,
• Then mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night,
• highs 82-87 cooling to 80 Wednesday lows 52-54. (seasonal averages high 68 low 44)

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Eugene-Springfield Pollen Count:

Grass………. Low (2)

Trees………. Moderate (36)

Last Counted: 5/17/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Partly cloudy and a bit warmer today and this evening, mostly clear late tonight,
• Sunny and a bit warmer Friday, mostly clear at night,
• Mostly cloudy Saturday AM, sunny and a bit cooler in the afternoon, then mostly clear at night.
• highs 74-80 cooling to 78 Saturday lows 47-52 cooling to 50 Saturday night.
• Mostly sunny and a bit warmer Sunday, mostly clear at night,
• Sunny and a bit warmer Monday and Tuesday (a bit cooler), clear Monday night, mostly clear Tuesday evening, partly cloudy late at night,
• Partly cloudy Wednesday AM, then sunny but cooler in the afternoon.
• highs 84-92 cooling to 80 Wednesday lows 53-55. (seasonal averages high 71 low 48)

 

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

• Partly cloudy today, mostly cloudy this evening, mostly clear tonight,
• Sunny Friday, mostly clear in the evening, partly cloudy late Friday night,
• Mostly cloudy Saturday AM, sunny in the afternoon, then mostly clear at night.
• highs 62-60 lows 48-50.
• Mostly sunny and a bit warmer Sunday and Monday (a bit cooler), mostly clear both nights,
• Sunny Tuesday, mostly clear in the evening, partly cloudy late at night and Wednesday AM, then sunny and a bit cooler Wednesday afternoon.
• highs 70-62 lows 50-52. (seasonal averages high 59 low 47)

 

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Forecast for the Cascades in Lane County:

• Mostly sunny this AM, partly cloudy and a bit warmer this afternoon and tonight,
• Mostly sunny and a bit warmer Friday and Saturday, clear both nights.
• free air freezing level 8,000 ft. today, 10,000 ft. tonight, 12,000 ft. Friday, then 11,000 ft. Friday night through Saturday night.
• highs 58-66 lows 33-36.
• Mostly sunny and a bit warmer Sunday, mostly clear at night,
• Sunny and a bit warmer Monday, clear Monday night,
• Mostly sunny and a bit warmer Tuesday, partly cloudy at night,
• Mostly sunny Wednesday AM, then a mix of clouds and sun and a bit cooler Wednesday afternoon.
• free air freezing level 12,000 ft. Sunday and Sunday night, then 13,000 ft. Monday through Wednesday.
• highs 72-77 cooling back to 72 Wednesday lows 42-45 cooling back to 42 Tuesday night.

 

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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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