Here is my weekly weather quiz question for the last time. What is  the “Azores High?” Here is the correct answer. The Azores High is an alternate term for Bermuda High – a semi-permanent, subtropical area of high pressure in the North Atlantic Ocean off the East Coast of North America that migrates east and west with varying central pressure. Depending on the season, it has different names. When it is displaced westward, during the Northern Hemispheric summer and fall, the center is located in the western North Atlantic, near Bermuda. In the winter and early spring, it is primarily centered near the Azores in the eastern part of the North Atlantic. Also known as Azores High. I’ll have a new weekly weather quiz question for you starting Monday. 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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The graphics for days 1-3 show the frontal system that fell apart as it moved through Oregon. An Upper Level High Pressure Ridge is moving in to dry us our. The graphics for days 3-7 show the frontal system that will move through the Pacific Northwest between next Friday and Saturday.

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Air Quality Index:

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

Oakridge: The Air Quality Index is 14 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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Advisories:

• A Health Advisory has been issued for Detroit Lake, located 46 miles SE of Salem in Marion County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Detroit Lake. These toxin concentrations can 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.
• 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 clear late tonight,
• Mostly sunny and a bit warmer Monday, mostly clear Monday night,
• Partly cloudy in the AM, mostly sunny and a bit warmer Tuesday afternoon, mostly clear at night,
• Partly cloudy and a bit cooler Wednesday with a slight (20%) chance of showers in the afternoon and evening, then mostly cloudy with rain likely (70%) late Wednesday night.
• lows 40-54 highs 74-79 cooling to 76 Wednesday.
• Cloudy with AM rain likely (70%), a good (50%) chance of showers and a bit cooler Thursday afternoon and late at night.
• Cloudy with a good (50%) chance of showers and a bit cooler Friday through Saturday, mostly cloudy with a good (50%) chance of showers Saturday night,
• Mostly cloudy with a (40%) chance of AM showers, then a slight (20%) chance of showers and a bit warmer Sunday afternoon.
• highs 66-60 warming back to 66 Sunday lows near 46. (seasonal averages high 70 low 46)

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Eugene-Springfield Pollen Count:

Grass………. Moderate (16)

Trees………. Moderate (15)

Last Counted: 6/2/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Partly cloudy this evening, mostly clear late tonight,
• Sunny and a bit warmer Monday, mostly clear at night,
• Partly cloudy Tuesday AM, mostly sunny and a bit warmer in the afternoon, mostly clear Tuesday night,
• Sunny Wednesday AM, partly cloudy with a slight (20%) chance of showers in the afternoon, a slight (20%) chance of evening thunderstorms, then becoming cloudy with rain late Wednesday night.
• lows 44-59 highs 77-82.
• Cloudy with AM rain, showers likely (70%) and cooler Thursday afternoon, evening showers likely (70%), a good (50%) chance of showers late at night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Friday and Friday night,
• Showers likely (60%) and a bit cooler Saturday and at night,
• Then mostly cloudy and a bit warmer with a (40%) chance of showers Sunday.
• highs 68-62 warming back to 68 Sunday lows 52-48. (seasonal averages high 74 low 50)

 

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

• Mostly clear late tonight,
• Sunny Monday AM, partly cloudy and a bit cooler in the afternoon and Monday night,
• Partly cloudy in the AM, sunny and a bit cooler Tuesday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Tuesday night,
• Patchy AM fog, partly cloudy Wednesday afternoon, mostly cloudy with a good (50%) chance of evening rain, then rain late Wednesday night.
• lows 47-55 highs 62-60.
•  Mostly cloudy with rain Thursday AM, showers likely (60%) and cooler Thursday afternoon and evening, a good (50%) chance of showers late Thursday night,
• Then mostly cloudy with a (40%) chance of showers and a bit cooler Friday, a good (50%) chance of showers Friday night,
• Showers likely (70%) and a bit cooler Saturday and Saturday night,
• The mostly cloudy and a bit warmer with a (40%) chance of showers Sunday.
• highs 60-58 warming to 60 Sunday lows near 50. (seasonal averages high 61 low 50)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy and colder tonight,
• Mostly sunny and a bit warmer Monday, mostly clear Monday night,
• Partly cloudy  and warmer Tuesday and at night,
• Mostly sunny in the AM, partly cloudy with a slight (20%) chance of  showers Wednesday afternoon, a good (50%) chance of evening showers, then rain likely (70%) late Wednesday night.
• free air freezing level 9,000 ft. falling to 6,500 ft. late tonight, 10,000 ft. rising to 12,000 ft. Monday, 12,000 ft. rising to 13,000 ft. Monday night, 13,000 ft. Tuesday through Wednesday AM, then snow level above 8,000 ft. Wednesday afternoon and Wednesday night.
• lows 33-45 highs 70-75.
• Mostly cloudy with AM rain likely (70%), cloudy a bit cooler with showers likely (70%) Thursday afternoon and evening, a (40%) chance of showers late at night and Friday AM, a bit cooler with a good (50%) chance of showers in the afternoon, a good (50%) chance of rain and snow showers late at night,
• Cloudy with a good (50%) chance of rain and snow showers Saturday AM, a bit cooler with rain and snow showers likely (70%) in the afternoon, a good (50%) chance of rain and snow showers Saturday night,
• Mostly cloudy with a good (50%) chance of rain and snow showers Sunday AM, then a good (50%) chance of showers and a bit warmer Sunday afternoon.
• snow level above 8,000 ft. Thursday, above 8,000 ft. falling to 6,500 ft. late Thursday night, 6,500 ft. falling to 5,500 ft. Friday afternoon, 5,000 ft. Friday night through Saturday night, then 6,000 ft. rising to 7,000 ft. Sunday afternoon.
• highs 57-48 warming to 55 Sunday lows 38-35.

 

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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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