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 next Wednesday and Thursday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 5 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 with patchy fog this AM, mostly sunny and a bit warmer this afternoon, partly cloudy tonight,
• Mostly cloudy early in the AM, partly cloudy and a bit cooler Saturday afternoon and at night,
• Mostly sunny and warmer Sunday, then clear Sunday night.
• highs 76-70 warming to 82 Sunday lows 48-45 warming to 52 Sunday night.
• Sunny and warmer Monday and Tuesday, clear at night,
• Mostly sunny and cooler Wednesday, partly cloudy Wednesday night,
• Mostly sunny in the AM, then partly cloudy and a bit cooler Thursday afternoon.
• highs 89-73 lows 54-50. (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:

• Sunny and a bit warmer today, clear tonight,
• Mostly cloudy Saturday AM, sunny and a bit cooler in the afternoon, clear Saturday night,
• Sunny and warmer Sunday, then clear at night.
• highs 74-80 cooling to 78 Saturday lows 50-54.
• Mostly sunny and a bit warmer Monday and Tuesday, mostly clear both nights,
• Sunny and a bit cooler Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
• Then partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Friday.
• 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:

• Sunny and a bit warmer today, mostly clear this evening, mostly cloudy late tonight,
• Mostly cloudy with patchy coastal fog Saturday AM, partly cloudy and a bit cooler in the afternoon, clear at night,
• Sunny and warmer Sunday, mostly clear at night.
• highs 62-60 lows 49-54.
• Mostly sunny and a bit warmer Monday, mostly clear Monday night,
• Mostly sunny but a bit cooler Tuesday, partly cloudy at night,
• Then partly cloudy and a bit cooler Wednesday through Thursday.
• highs 70-62 lows 50-52. (seasonal averages high 59 low 48)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today, partly cloudy this evening, clear late tonight,
• Partly cloudy Saturday AM, mostly sunny and a bit cooler in the afternoon, partly cloudy Saturday night,
• Mostly sunny and warmer Sunday, then clear at night.
• free air freezing level 10,000 ft. rising to 11,000 ft. this afternoon, 11,000 ft. tonight through Saturday night, 12,000 ft. Sunday, then 13,000 ft. late Sunday night.
• highs 67-63 warming to 72 Sunday lows 35-42.
• Sunny and a bit warmer Monday, clear Monday night,
• Mostly sunny and a bit warmer Tuesday, mostly clear at night,
• Sunny Wednesday AM, partly cloudy and a bit cooler Wednesday afternoon and at night,
• Mostly sunny Thursday AM, then partly cloudy and cooler with a slight (20%) chance of showers in the afternoon.
• free air freezing level 13,000 ft. Monday through Wednesday night, then snow level above 8,000 ft. Thursday.
• highs 78-80 cooling to 63 Thursday lows 46-43.

 

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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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