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.

________________

 

So much for our short break. An upper level trough of low pressure (Shaded “U” shape with blue arrows) moves in to send us more surface storms. Check out Day 2 on the 3-day forecast and you’ll see the frontal system that moves through Monday. Then we’ll see a break until the end of the week. The graphic for days 3-7 show a frontal system moving in next Friday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 in the Good category measuringParticulate Matter.

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

________________

 

Advisories:

• 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.

________________

 

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

• Mostly cloudy with a slight (20%) chance  of showers late tonight,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday, cloudy with evening rain likely (70%), a good (50%) chance of showers and cooler late at night,
• Partly cloudy with patchy fog and a slight (20%) chance of AM rain, just partly cloudy and a bit cooler Monday afternoon (Columbus Day) and evening, mostly cloudy with areas of fog late Monday night,
• Mostly cloudy with areas of AM fog Tuesday, sunny and a bit warmer in the afternoon, then partly cloudy Tuesday night.
• lows 55-45 warming to 48 Tuesday night highs 68-64 warming back to 68 Tuesday.
• Mostly cloudy with a slight (20%) chance of rain and a bit cooler Wednesday, rain likely (70%)  Wednesday night,
• Mostly cloudy with rain and a bit cooler Thursday and Thursday night,
• Showers likely (70%) Friday, then mostly cloudy with rain Friday night and Saturday.
• highs 66-60 lows near 52. (seasonal averages high 68 low 42)

_____

Your College Football Forecast

Ducks vs. Washington at Autzen Stadium – Kickoff 4:30 PM – Mostly cloudy, 72 then cooling as the game progresses, Wind W 5 mph.

_____

Beavers vs California at Reser Stadium – Kickoff 6:00 PM – Partly cloudy, 68 then cooling as the game progresses, Light Wind.

________________

 

 

Forecast for Roseburg:

• Partly cloudy this evening, mostly cloudy with a slight (20%) chance of rain late tonight,
• Mostly cloudy with a slight (20%) chance of AM rain Sunday, mostly sunny with a slight (20%) chance of afternoon showers, a good (50%) chance of rain Sunday night,
• Mostly cloudy with a slight (20%) chance of rain Monday AM (Columbus Day), partly cloudy and a bit cooler  with a slight (20%) chance of rain in the afternoon, partly cloudy in the evening, mostly cloudy with areas of fog late at night and Tuesday AM, mostly sunny and a bit warmer Tuesday afternoon, partly cloudy in the evening, then mostly cloudy late Tuesday night.
• lows 53-46 highs 75-69 warming to 72 Tuesday.
• Mostly cloudy and a bit cooler with a slight (20%) chance of rain Wednesday, rain likely (70%) Wednesday night,
• Mostly cloudy with rain and a bit cooler Thursday through Friday, then rain likely (70%) Friday night and Saturday (a bit cooler).
• highs 73-63 lows 50-53. (seasonal averages high 70 low 46)

 

________________

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

• Partly cloudy inland this evening and mostly cloudy with a slight (20%) chance of inland rain late tonight while mostly cloudy with a slight (20%) chance of coastal rain late tonight,
• Mostly cloudy with a slight (20%) chance of coastal rain Sunday while mostly cloudy with a slight (20%) chance of inland AM rain and just partly cloudy inland in the afternoon, mostly cloudy with a good (50%) chance of evening coastal rain and rain likely (70%) late at night while a (40%) chance of inland rain late Sunday night,
• Mostly cloudy in the AM, partly cloudy and a bit cooler Monday afternoon and evening (Columbus Day), mostly cloudy with areas of fog late at night and Tuesday AM, sunny and a bit warmer in the afternoon, then becoming mostly cloudy Tuesday night.
• lows 53-47 warming to 50 Tuesday night highs 65-63 warming back to 65 Tuesday.
• Cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, rain likely (70%) at night,
• Rain and windy and a bit cooler Thursday and at night,
• Mostly cloudy with rain likely (70%) Friday, then rain and breezy Friday night and Saturday.
• highs 65-60 lows 52-55 cooling back to 52 Friday night. (seasonal averages high 62 low 47)

 

________________

 

Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of rain late tonight and Sunday, cloudy with a (40%) chance of evening rain, rain likely (70%) late Sunday night (0.50 in. of rain possible),
• Mostly cloudy with a (40%) chance of AM rain, just partly cloudy and a bit cooler Monday afternoon (Columbus Day), mostly clear and colder Monday night,
• Mostly sunny and a bit warmer Tuesday, then partly cloudy Tuesday night.
• snow level above 8,000 ft. tonight through Sunday night, 8,000 ft. Monday, free air freezing level 9,000 ft. rising to 10,000 ft. Monday night, 10,000 ft. Tuesday, then 11,000 ft. Tuesday night.
• lows 43-36 warming to 42 Tuesday night highs 62-58 warming back to 62 Tuesday.
• Mostly cloudy and a bit cooler Wednesday, becoming cloudy with a good (50%) chance of rain Wednesday night,
• Rain Thursday, rain and breezy at night,
• Mostly cloudy with showers likely (70%) and a bit cooler Friday, then rain likely (70%) Friday night and Saturday.
• free air freezing level 10,000 ft. Wednesday, snow level above 8,000 ft. Wednesday night through Thursday night, 7,000 ft. Friday, then 7,500 ft. Friday night and Saturday.
• highs 58-52 lows near 42.

________________

**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.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________