Here is my weekly weather quiz question for the last time. What is “Acid Precipitation?” Here is the correct answer. Acid Precipitation is precipitation, such as rain, snow or sleet, containing relatively high concentrations of acid-forming chemicals that have been released into the atmosphere and combined with water vapor; harmful to the environment. I’ll have a new weekly weather quiz question for you starting 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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We expected some afternoon sun Monday, but I didn’t see any. It stayed overcast all day at least in South Eugene. 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. You’ll see days 3-7 show a frontal system moving toward us Friday through Monday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 69 in the Moderate category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 58 in the Moderate category measuringParticulate Matter.

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

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Advisories:

• A HIGH WIND WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING FOR THE KLAMATH BASIN,  EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY, NORTHERN, CENTRAL LAKE COUNTY.
• A HIGH WIND WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• 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 sunny and a bit warmer this afternoon, mostly clear with areas fog late tonight and Wednesday AM, a mix of clouds and sun early Wednesday afternoon, increasing clouds with a slight (20%) chance of evening rain, then mostly cloudy with rain late Wednesday night (0.25 in. of rain possible) through Thursday night.
• highs 65-62 lows 42-54.
• Mostly cloudy with showers and a bit cooler Friday, rain Friday night,
• Rain and a bit cooler Saturday, showers at night,
• Then mostly cloudy with showers likely (70%) Sunday through Monday.
• highs 60-62 lows 54-50. (seasonal averages high 67 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 55 warming to near 60 by the end of the game.

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Forecast for Roseburg:

• Partly cloudy and a bit warmer this afternoon, mostly clear  this evening, increasing clouds to mostly cloudy late tonight,
• Just mostly cloudy and a bit warmer Wednesday, a good (50%) chance of evening rain, rain late Wednesday night (under 0.10 in. of rain possible),
• Rain and a bit cooler Thursday and Thursday night.
• highs 72-74 cooling to 63 Thursday lows 47-55.
• Mostly cloudy with showers Friday, showers likely (70%) at night,
• Rain and a bit warmer Saturday and Saturday night,
• Mostly cloudy with showers Sunday and Sunday night,
• Then showers likely (70%) Monday.
• highs 63-65 cooling to 60 Sunday warming to 64 Monday lows 54-52. (seasonal averages high 69 low 46)

 

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

• Mostly cloudy and a bit warmer this afternoon, becoming mostly cloudy tonight and Wednesday, a good (50%) chance of evening rain, rain late Wednesday night,
• Then mostly cloudy and breezy with rain possibly heavy at times and a bit cooler Thursday, rain and windy Thursday night.
• highs near 65 lows 50-57.
• Mostly cloudy with showers Friday and Friday night,
• Mostly cloudy with rain and breezy Saturday and Saturday night,
• Showers and breezy Sunday, showers at night,
• Then showers likely (70%) Monday.
• 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 sunny and a bit warmer today, mostly clear tonight,
• A mix of clouds and sun and a bit warmer Wednesday, becoming cloudy with rain likely (70%) late Wednesday night,
• Then mostly cloudy with rain and a bit cooler Thursday and Thursday night (rain heavy at times).
• free air freezing level 10,000 ft. today, 11,000 ft. tonight and Wednesday, then snow level above 8,000 ft. Wednesday night through Thursday night.
• highs 62-53 lows 33-44 cooling to 42 Thursday night.
• Mostly cloudy with rain and snow showers and a bit cooler Friday, rain Friday night,
• Mostly cloudy with rain and a bit warmer Saturday, showers at night,
• Showers likely (70%) Sunday and Sunday night,
• Then rain and snow showers likely (70%) Monday.
• snow level 5,500 ft. Friday, 7,000 ft. Friday night, 7,500 ft. Saturday, 7,000 ft. Saturday night, 6,500 ft. Sunday and Sunday night, then 6,000 ft. Monday.
• 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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