Here is my weekly weather quiz question for the last time. What is an “Accessory Cloud?”  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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We expected some afternoon sun Monday, but I didn’t see any. It stayed overcast all day at least in South Eugene. Clouds like to get stuck in the southern end of the Willamette Valley particularly this time of the year. We did manage some afternoon sunshine today.  An upper level trough of low pressure (Shaded “U” shape with blue arrows) moves to the east to allow clearing again because of a ridge of high pressure (Shaded “Arch” shape with blue arrows). That means we’ll warm up a bit also. An upper level low pressure trough (Shaded “U” shape with blue arrows on previous graphic) will take over Thursday bringing a series of frontal systems. You’ll see days 3-7 show a frontal series of frontal systems moving through about every other day.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 67 in the Moderate 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 118 in the Unhealthy for Sensitive Groups category measuringParticulate Matter.

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

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Advisories:

• *A HIGH WIND WARNING IS IN EFFECT FROM 2 PM THURSDAY  THROUGH 5 AM FRIDAY FOR THE KLAMATH BASIN,  NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY, NORTHERN, CENTRAL LAKE COUNTY.
• *A HIGH WIND WARNING IS IN EFFECT FROM 11 AM UNTIL 11 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A HIGH SURF WARNING IS IN EFFECT FROM 11 AM UNTIL 11 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• *A HIGH WIND WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY AFTERNOON FOR THE NORTH OREGON COAST, THE CENTRAL OREGON COAST, THE COAST RANGE OF NORTHWEST OREGON, THE COAST RANGE OF WEST CENTRAL OREGON, THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• *A WIND ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM THURSDAY FOR JACKSON COUNTY.
• A WIND ADVISORY IS IN EFFECT FROM 11 AM UNTIL 2 PM THURSDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY, NORTHERN, CENTRAL LAKE COUNTY.
• A FREEZE WARNING IS IN EFFECT UNTIL 9 AM WEDNESDAY FOR THE GRANDE RONDE VALLEY, THE JOHN DAY BASIN AND CENTRAL OREGON.
• A Blue-green Algae Health Advisory has been issued for Howard Bay located in Upper Klamath Lake. 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. Cell counts in other parts of the lake were low.
• 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 areas fog late tonight and Wednesday AM, a mix of clouds and sun and a bit warmer Wednesday afternoon, increasing clouds to mostly cloudy with rain late at night (0.25 in. of rain possible),
• Rain, heavy at times, and a bit cooler Thursday (0.75 in. of rain possible) and in the evening, showers likely (70%) late at night (0.90 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Friday afternoon, then rain Friday night.
• lows 43-55 highs 66-60.
• Rain Saturday and breezy in the afternoon, rain at night,
• Mostly cloudy with showers Sunday and Sunday night,
• Showers likely (70%) and a bit warmer Monday and Monday night,
• Then mostly cloudy with rain likely (70%) Tuesday.
• highs 60-63 lows near 52. (seasonal averages high 66 low 42)

 

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Your College Football Forecast

Ducks have a Bye week.

Next game:

Friday October 21st Ducks vs.California at California Memorial Stadium, Berkeley, CA – Kickoff 7:30 PM – Way too soon for an accurate weather forecast.

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Saturday October 15th:

Beavers vs Utah at Reser Stadium – Kickoff 1:00 PM – Mostly cloudy with rain and breezy, 55 warming to near 60 by the end of the game.

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Forecast for Roseburg:

• Partly cloudy this evening, increasing clouds to mostly cloudy with patchy fog late tonight and Wednesday AM, just mostly cloudy and a bit warmer in the afternoon, a good (50%) chance of evening rain, rain late Wednesday night (under 0.10 in. of rain possible),
• Rain (0.50 in. of rain possible) and a bit cooler Thursday, rain possibly heavy in the evening and breezy (Wind: S 15-25 mph gusts to 40 mph shifting SW 10-15 mph late at night), rain (0.90 in. of rain possible) continues Thursday night,
• Then mostly cloudy with showers and a bit cooler Friday and at night.
• lows 48-55 highs 74-62.
• Mostly cloudy with rain and a bit warmer Saturday and Saturday night,
• Showers and a bit cooler Sunday and Sunday night,
• Then mostly cloudy with showers likely (70%) and a bit warmer Monday and Tuesday, rain likely (70%) Monday night.
• highs 64-60 warming to 63 Monday lows 54-52. (seasonal averages high 68 low 45)

 

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

• Partly cloudy this evening, mostly cloudy with patchy fog late tonight and Wednesday AM, mostly cloudy in the afternoon, a good (50%) chance of evening rain, rain late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with rain (1 in. of rain possible) Thursday and windy (Wind: S 20-30 mph increasing to S 25-40 mph at the shore while S 20-30 mph gusts to 45 mph increasing to 55 mph inland in the afternoon) , rain (1 in. of rain possible) possibly heavy at times in the evening and windy (S 25-40 shifting SW 20-25 mph at the shore late at night while S 20-30 mph shifting SW 15-20 mph late at night inland) Thursday night,
• Then mostly cloudy with showers an d a bit cooler Friday and Friday night.
• lows 50-57 highs near 65.
• Mostly cloudy with rain and breezy and a bit warmer Saturday and Saturday night,
• Showers and breezy and a bit cooler Sunday and at night,
• Mostly cloudy and a bit warmer with showers likely (70%) Monday, rain and breezy Monday night,
• Then mostly cloudy with a good (50%) chance of showers Tuesday.
• highs 60-63 cooling to 60 Sunday warming to 63 Monday lows 57-55. (seasonal averages high 62 low 46)

 

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Partly cloudy and a bit warmer Wednesday, becoming cloudy with good (50%) chance of rain late Wednesday night (0.10 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Thursday and in the evening, showers late at night,
• Rain Friday AM, showers and a bit cooler in the afternoon, then rain Friday night.
• free air freezing level 11,000 ft. tonight and Wednesday, snow level above 8,000 ft. Wednesday night and Thursday, above 8,000 ft. falling to 7,500 ft. late Thursday night, 6,000 ft. Friday, then 6,500 ft. Friday night.
• lows 33-44 cooling to 42 Thursday night highs 62-50.
• Mostly cloudy with rain and a bit warmer Saturday, rain and windy at night,
• Showers and a bit cooler Sunday and Sunday night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit warmer Monday, rain at night,
• Then rain likely (70%) Tuesday.
• snow level 7,500 ft. Saturday, 6,500 ft. Saturday night and Sunday, 6,000 ft. Sunday night and Monday, 6,500 ft. Monday night, then 6,000 ft. Tuesday.
• highs 49-52 lows 42-39.

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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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