Here is my weekly weather quiz question for the last time. What are “Wind Waves?” Here is the correct answer. Wind Waves are local, short period waves generated from the action of wind on the water surface (as opposed to swell). Commonly referred to as waves. In a National Weather Service Coastal Marine Forecast or Offshore Forecast, wind waves are used when swells are described in the forecast. Or Waves generated by the local wind blowing at the time of observation. I’ll have a new weekly weather quiz question for you Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer 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 moves in to change our weather.  On Tuesday Day 4 on this graphic a frontal system will be along the Pacific Northwest coast and by next Friday (day 7) another storm will be approaching.

 

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 31 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 5 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A  Permanent Health Advisory is 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.
• A Blue-Green Algae Health Advisory remains in effect for Agency Lake. Agency Lake is located just north of Upper Klamath Lake near Klamath Falls along Highway 97 in Klamath County. Water monitoring on the lake has confirmed the presence of high levels of blue-green algae and associated toxins that can be harmful to people and animals. Swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing and power boating, should be avoided in areas where blooms are identified. Although toxins are not absorbed through the skin, contact with cells from a bloom can cause skin irritation and a red, puffy rash in individuals with skin sensitivities, or those who develop rashes easily.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with showers tonight (0.25 in. of rain possible),
• Cloudy with showers and a bit cooler Sunday afternoon (0.25 in. of rain possible), mostly cloudy with a good (50%) chance of evening showers, a slight (20%) chance of showers late Sunday night (under 0.10 in. of rain possible),
• Mostly cloudy Monday with a slight (20%) chance of rain and a bit warmer in the afternoon (under 0.10 in. of rain possible), cloudy with  a good (50%) chance of rain Monday night (0.15 in. of rain possible),
• Cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance of showers Tuesday afternoon, then mostly cloudy with a good (50%) chance of showers Tuesday night.
• lows 45-49 highs 60-64.
• Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday, a slight (20%) chance of showers Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, mostly cloudy with a (40%) chance of showers Thursday night,
• A good (50%) chance of showers and a bit warmer Friday, then mostly cloudy with a slight (20%) chance of showers and a bit warmer Friday night and Saturday.
• highs 65-67 lows 46-48. (seasonal averages high 71 low 44)

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Your College Football Forecast

Preliminary Forecasts for Saturday October 8th: (Too early for an accurate forecast)

Ducks vs. Washington at Autzen Stadium – Kickoff  4:30 PM – Mostly cloudy, slight chance of showers 67 then cooling as the game,progresses.

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Beavers vs California at Reser Stadium – Kickoff 6:00 PM – Mostly cloudy, slight chance of showers 65 then cooling as the game,progresses.

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Forecast for Roseburg:

• Mostly cloudy with a good (50%) chance of late evening showers, showers and a slight (20%) chance of thunderstorms late tonight (0.25 in. of rain possible),
• Showers Sunday AM, showers with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon (0.35 in. of rain possible), a good (50%) chance of showers at night (under 0.10 in. of rain possible),
• Cloudy with a (30%) chance of rain and a bit warmer Monday (under 0.10 in. of rain possible), a (40%) chance of evening rain, rain likely (70%) late at night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer with showers likely (70%) Tuesday, then a (40%) chance of showers Tuesday night.
• lows 47-45 warming to 49 Tuesday night highs 58-62.
• Mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday, a slight (20%) chance of evening showers, just mostly cloudy Wednesday night and Thursday (a bit warmer), mostly cloudy with a (30%) chance of showers Thursday night and Friday (a bit cooler), then mostly cloudy with a slight (20%) chance of showers Friday night and Saturday.
• highs 66-70 cooling to 68 Friday and Saturday lows 49-52. (seasonal averages high 73 low 48)

 

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

• Mostly cloudy with a slight (20%) chance of coastal evening showers and coastal showers with a slight (20%) chance of thunderstorms late tonight while inland evening showers, showers and a slight (20%) chance of  thunderstorms late tonight (0.50 in. of rain possible),
• Mostly cloudy with showers and a slight (20%) chance of thunderstorms and a bit cooler Sunday afternoon (0.25 in. of rain possible), a good (50%) chance of evening showers, just mostly cloudy late Sunday night,
• Cloudy with a (40%) chance of rain and a bit warmer Monday (under 0.10 in. of rain possible), coastal rain likely (70%) at night while evening rain likely (60%) inland and a good (50%) chance of rain late Monday night (0.15 in. of rain possible),
• Mostly cloudy with a AM showers likely (70%), a bit warmer with a good (50%) chance of showers Tuesday afternoon, then a (40%) chance of showers late at night.
• lows 52-48 warming back to 52 Tuesday night highs 58-62
• Mostly cloudy with a (40%) chance of showers and a bit warmer Wednesday, just mostly cloudy Wednesday night and Thursday (a bit warmer), mostly cloudy with a (40%) chance of showers Thursday night and Friday (a bit cooler), then mostly cloudy with a slight (20%) chance of showers Friday night and Saturday.
• highs 63-66 cooling back to 63 Saturday lows 50-53. (seasonal averages high 63 low 48)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with showers likely (70%) tonight (0.25 in. of rain possible),
• Mostly cloudy with AM rain and snow showers, rain and snow showers and a bit cooler with a slight (20%) chance of thunderstorms Sunday afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), cloudy with evening rain and snow showers likely (70%), a good (50%) chance of showers late Sunday night (0.10 in. of rain possible),
• A slight (20%) chance of AM rain and snow showers Monday, a slight (20%) chance of rain and a bit warmer in the afternoon, cloudy with a good (50%) chance of rain in the evening, cloudy with rain likely (70%) late Monday night,
• Cloudy with showers likely (70%) Tuesday AM, a bit warmer with a (40%) chance of afternoon showers, then a good (50%) chance of showers late Tuesday night.
• snow level 6,000 ft. tonight, 5,500 ft. Sunday through Monday, then 6,500 ft. Monday night through Tuesday night.
• lows 33-30 warming to 36 Tuesday night highs 45-50 cooling to 47 Tuesday.
• Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, becoming  mostly cloudy with a slight (20%) chance of showers Thursday night,
• Mostly cloudy with a (40%) chance of showers and a bit cooler Friday, partly cloudy with a slight (20%) chance of showers at night,
• Then a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Saturday.
• snow level 6,500 ft. Wednesday, 7,000 ft. Wednesday night, free air freezing level 9,000 ft. Thursday, snow level above 8,000 ft. Thursday night, 7,500 ft. Friday, 7,000 Friday night, then 8,000 ft. Saturday.
• highs 48-55 cooling to 52 Friday lows 38-42.

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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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