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) has taken 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 until the middle of next week.

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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 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 6 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:

• Partly cloudy this evening, mostly cloudy late tonight,
• Cloudy early in the AM, partly cloudy and a bit cooler Saturday afternoon mostly clear at night,
• Sunny and warmer Sunday, clear Sunday night,
• Mostly sunny and a bit warmer Monday, then mostly clear at night.
• lows 52-47 warming to 54 Monday night highs 70-89.
• Mostly sunny and a bit warmer Tuesday and Wednesday (a bit cooler), mostly clear Tuesday night, partly cloudy Wednesday night,
• Partly cloudy and a bit cooler Thursday and at night,
• Then a mix of clouds and sun and a bit cooler Friday.
• highs 90-73 lows 52-50. (seasonal averages high 68 low 44)

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Eugene-Springfield Pollen Count:

Grass………. Moderate (6)

Trees………. Moderate (25)

Last Counted: 5/18/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly clear this evening, increasing clouds to mostly cloudy late tonight,
• Mostly cloudy with patchy drizzle Saturday AM, sunny and a bit cooler in the afternoon, clear Saturday night,
• Sunny and warmer Sunday, clear at night,
• Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
• lows 52-55 highs 74-96.
• Sunny Tuesday, a slight (20%) chance of thunderstorms in the afternoon and evening, clear late at night,
• Mostly sunny and a bit cooler with a slight (20%) chance of thunderstorms Wednesday, mostly clear with a slight (20%) chance of thunderstorms Wednesday night,
• Mostly sunny and a bit cooler Thursday, mostly clear at night,
• Then sunny and a bit cooler Friday,
• highs 95-74 lows 58-50. (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 this evening, mostly cloudy late tonight and Saturday AM with patchy AM drizzle, partly cloudy and a bit cooler in the afternoon, mostly clear at night,
• Sunny and warmer Sunday, mostly clear at night,
• Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
• lows 50-54 cooling to 52 Monday night highs 60-77
• Sunny but a bit cooler Tuesday and Wednesday, mostly clear at night,
• Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
• Sunny in the AM, then partly cloudy and a bit cooler Friday afternoon.
• highs 72-59 lows 54-49. (seasonal averages high 59 low 48)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy Saturday AM, mostly sunny and a bit cooler in the afternoon, mostly clear Saturday night,
• Mostly sunny and warmer Sunday, clear at night,
• Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
• free air freezing level 12,000 ft. falling to 11,000 ft. late tonight, 10,000 ft. rising to 11,000 ft. Saturday, 11,000 ft. Saturday night, 12,000 ft. Sunday, then 14,000 ft. Sunday night through Monday night.
• lows 43-52 highs 62-78.
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Sunny Wednesday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Wednesday afternoon and evening, just partly cloudy late Wednesday night,
• Partly cloudy and cooler Thursday and Thursday night,
• Then a mix of clouds and sun and a bit cooler Friday.
• free air freezing level 14,000 ft. Tuesday and Tuesday night,  Wednesday night, snow level above 8,000 ft. Thursday,
• highs 78-65 lows 48-44.

 

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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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