Morning clouds, the mostly sunny today for your Sunday.

Check out my latest Eugene Daily News “Weather Or Not” column now at:

Do It Often, With What?

Here is my weekly weather quiz question for the last time. What is a “Spring Tide?” Here is the correct answer. A Spring Tide is a tide higher than normal which occurs around the time of the new and full moon.  I’ll have a new weekly weather quiz question for you starting Monday. The First person to post the correct answer as a comment will win a week of free personalized weather forecasts tailored to your needs. 

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ADVISORIES: None

HEALTH ADVISORIES:

  • THE OREGON HEALTH AUTHORITY HAS ISSUED A RECREATIONAL USE HEALTH ADVISORY FOR ODELL LAKE IN KLAMATH COUNTY DUE TO THE PRESENCE OF CYANOBACTERIA (HARMFUL ALGAE) BLOOM THAT HISTORICALLY PRODUCES CYANOTOXINS (HARMFUL ALGAE TOXINS) ABOVE RECREATIONAL GUIDELINE VALUES FOR HUMAN EXPOSURE. UNTIL THE ADVISORY IS LIFTED PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE IDENTIFIED. ALTHOUGH TOXINS ARE NOT ABSORBED THROUGH THE SKIN, PEOPLE WITH SKIN SENSITIVITIES MAY EXPERIENCE A PUFFY RED RASH. VISITING ODELL LAKE IS SAFE AS LONG AS ANY BOATING OR OTHER ACTIVITIES DO NOT CAUSE EXCESSIVE WATER SPRAY WHICH COULD LEAD TO INHALATION RISKS IF THERE IS EXCESSIVE WATER SPRAY.

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THE WEATHER PATTERN:

  • An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) brings cooler weather.  The graphics for days 1-3 show a front headed our way Monday. The graphics for days 3-7 Wednesday through next Sunday show a frontal system pushing through Thursday. Yet another frontal system will be over Vancouver Island early next Saturday then moving into the Pacific Northwest.

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THE AIR QUALITY INDEX:

For the local area:

Eugene/Springfield: The Air Quality Index is 19 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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FORECASTS:

Forecast for the Southern Willamette Valley including Eugene-Springfield

  • Patchy low clouds this AM, mostly sunny this afternoon, partly cloudy tonight,
  • AM clouds, a mix of clouds and sun and a bit cooler Monday, mostly clear at night,
  • Some AM clouds, sunny and a bit warmer Tuesday afternoon, then clear Tuesday night.
  • highs 86-83 warming to 87 Tuesday lows near 55.
  • Mostly sunny and a bit cooler Wednesday, mostly clear Wednesday night,
  • Partly cloudy and a bit cooler Thursday, mostly clear at night,
  • Mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
  • highs near 86-78 warming to 83 Saturday lows 55-52. (seasonal averages high 84 low 52)

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Eugene-Springfield Pollen Count:

Grass………. LOW (3)

Trees………. LOW (5)

Last Counted: 7/31/20

Data Courtesy of Oregon Allergy Associates

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Forecast for the Umpqua Valley including Roseburg:

  • Some AM clouds, sunny this afternoon, mostly clear night, (The haze should be gone with northern winds)
  • Sunny and a bit cooler Monday, mostly clear at night,
  • Some AM clouds, sunny and a bit warmer Tuesday afternoon, then clear Tuesday night.
  • highs 89-87 warming back to 89 Tuesday lows near 60.
  • Mostly sunny and a bit cooler Wednesday, mostly clear Wednesday night,
  • Some AM clouds, sunny and a bit cooler Thursday afternoon, mostly clear at night,
  • Mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
  • highs 86-83 warming to 88 Saturday lows 58-56 warming back to 58 Friday night. (seasonal averages high 86 low 57)

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Forecast for the Oregon Coast including Coos Bay and North Bend

  • Mostly cloudy with patchy coastal fog this AM, mostly sunny and a bit warmer Sunday afternoon,  partly cloudy Sunday night,
  • Partly cloudy Monday and late at night,
  • AM clouds, sunny Tuesday afternoon, then becoming partly cloudy late Tuesday night.
  • highs near 72 lows 56-54.
  • Partly cloudy and a bit cooler Wednesday through Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit warmer Friday and Saturday, mostly clear Friday night.
  • highs 70-72 lows 55-52. (seasonal averages high 65 low 53)

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Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly sunny and a bit cooler today, more clouds tonight,
  • AM clouds, mostly sunny and a bit cooler Monday, mostly clear at night,
  • Sunny and a bit warmer Tuesday, then clear Tuesday night.
  • free air freezing level 16,000 ft. falling to 15,00 ft. this afternoon, 14,000 ft. tonight and Monday, 15,000 ft. Monday night, 16,000 ft. Tuesday, then 14,000 ft. Tuesday night.
  • highs 75-72 warming to 76 Tuesday lows 47-50.
  • Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit cooler Thursday, clear Thursday night,
  • Mostly sunny and a bit warmer Friday, clear at night,
  • Then sunny and a bit warmer Saturday.
  • free air freezing level 14,000 ft. Wednesday and Wednesday night, 13,000 ft. Thursday, 11,000 ft. Thursday night and Friday, 12,000 ft. Friday night, then 15,000 ft. Saturday.
  • highs 77-68 warming to 74 Saturday lows 48-45 warming back to 48 Friday night.

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Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can change due to unexpected changes in atmospheric conditions, so there are no guarantees that the actual weather will conform to the projected forecast.

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For all of your Lane County and Eugene-Springfield News, Weather and Sports go to: eugenedailynews.com

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