Here is my weekly weather quiz question. What is  the “Azores High?” 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 Low Pressure Trough (Shaded “U” shape with blue arrows) takes over bringing onshore airflow which means more clouds and cooler with showers chances. The graphics for days 1-3 show the frontal system that will move through Oregon Wednesday. There graphics for days 3-7 show that after Friday no frontal systems will move through the Pacific Northwest through next Monday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 11 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:

• Mostly cloudy with a sight (20%) chance of showers late tonight,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday and in the evening (under 0.10 in. of rain possible), just mostly cloudy Tuesday night,
• Mostly cloudy and a bit warmer Wednesday, just mostly cloudy late at night,
• Cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Thursday afternoon, partly cloudy with a slight (20%) chance of evening showers, then mostly cloudy with a slight (20%) chance of showers late Thursday night.
• lows 50-48 warming to 52 Thursday night highs 62-72 cooling to 69 Thursday.
• Partly cloudy with a slight (20%) chance of showers Friday AM, a mix of clouds and sun in the afternoon, partly cloudy Friday night through Monday (a bit warmer Saturday and Sunday, a bit cooler Monday),
• highs 69-75 cooling to 73 Monday lows 47-45. (seasonal averages high 69 low 45)

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Eugene-Springfield Pollen Count:

Grass………. High (117)

Trees………. Moderate (17)

Last Counted: 5/26/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of showers and thunderstorms this evening (under 0.10 in. of rain possible, more in storms), a (30%) chance of rain and drizzle late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of showers and a bit cooler Tuesday and in the evening, just mostly cloudy Tuesday night,
• Mostly cloudy and warmer Wednesday, mostly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Thursday and in the evening, just mostly cloudy late Thursday night.
• lows 52-49 warming back to 52 Wednesday night cooling back to 49 Thursday night highs 65-76.
• Partly cloudy and a bit cooler Friday and Friday night,
• Sunny and a bit warmer Saturday, mostly clear at night,
• Partly cloudy and a bit cooler Sunday, partly cloudy Sunday night,
• Sunny and a bit warmer Monday.
• highs 75-78 cooling back to 75 Sunday warming to 78 Monday lows 48-50 cooling back to 48 Sunday night. (seasonal averages high 73 low 49)

 

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

• Mostly cloudy with a slight (20%) chance of evening  showers, a (30%) chance of rain and drizzle late tonight (under 0.10 in. of rain possible),
• Cloudy with a (30%) chance of showers Tuesday, mostly cloudy with a slight (20%) chance of evening showers (under 0.10 in. of rain possible), just mostly cloudy late at night and Wednesday (a bit warmer Wednesday), mostly cloudy with a slight (20%) chance of showers Wednesday night,
• Mostly cloudy  and a bit cooler with (30%) chance of showers Thursday, partly cloudy with a slight (20%) chance of evening showers,  mostly cloudy late Thursday night.
• lows 52-49 warming back to 52 Thursday night highs 59-62 cooling to 58 Thursday.
• Mostly cloudy Friday AM, partly cloudy and a bit warmer in the afternoon and Friday night,
• Then partly cloudy Saturday, mostly clear at night,
• Then sunny Sunday and Monday (a bit cooler), clear Sunday night.
• highs 59-57 lows 50-48. (seasonal averages high 60 low 49)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a slight (20%) chance of showers and thunderstorms this evening, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday (under 0.10 in. of rain possible), a (30%) chance of showers in the evening, a slight (20%) chance of showers Tuesday night,
• A mix of clouds and sun with a slight (20%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of evening showers, a (40%) chance of showers late Wednesday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Thursday, a slight (20%) chance of  evening showers, then just partly cloudy Thursday night.
• snow level above 8,000 ft. tonight through Wednesday night, 8,000 ft. Thursday, then above 8,000 ft. Thursday night.
• lows 42-38 warming back to 42 Thursday night highs 63-60.
• A mix of clouds and sun in the AM, mostly sunny and a bit warmer Friday afternoon, partly cloudy at night and Saturday AM, mostly sunny and a bit warmer in the afternoon, partly cloudy Saturday night,
• Partly cloudy and a bit warmer Sunday and at night,
• Partly cloudy Monday AM, then mostly sunny and a bit cooler in the afternoon.
• free air freezing level 10,000 ft. rising to 11,000 ft. Friday afternoon, 11,000 ft. Friday night and Saturday, 11,000 ft. falling to 10,000 ft. late Saturday night, 10,000 ft. falling to 9,000 ft. Sunday afternoon, 9,000 ft. Sunday night, then 9,000 ft. rising to 10,000 ft. Monday.
• highs 60-73 lows near 38.

 

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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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