Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/09/it-happened-again-right-on-schedule/
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Here is my weekly weather quiz question for the last time. What is the “Greenhouse Effect?” Here is the correct answer. Greenhouse Effect: Atmospheric heating caused by solar radiation being readily transmitted inward through the earth’s atmosphere but longwave radiation less readily transmitted outward, due to absorption by certain gases in the atmosphere. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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An Upper Level Low (Shaded “U” shape with arrows) moved in to bring us back to much cooler but normal Fall temperatures and the chance of showers. We will have a bit of a warmup, but not much. The graphics for days 3-7 show a frontal system approaching the coast Wednesday and moving through Oregon Wednesday night and Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 30 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 42 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 30 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- A mix of clouds and sun today with a slight (20%) chance of showers (under 0.10 in. of rain possible), just mostly cloudy tonight,
- Mostly cloudy with a slight (20%) chance of showers Monday (under 0.10 in. of rain possible) and at night (under 0.10 in. of rain possible),
- A mix of clouds and sun with a slight (20%) chance of showers Tuesday, then partly cloudy Tuesday night.
- highs near 73 lows 54-46.
- Partly cloudy and a bit cooler Wednesday and in the evening, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
- A mix of clouds and a bit cooler Thursday with a slight (20%) chance showers, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
- Then partly cloudy and a bit warmer Friday through Saturday.
- highs 69-67 warming to 69 Saturday lows 49-44. (seasonal averages high 72 low 44)
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Your College Football Forecast
Saturday October 6th:
Ducks have a bye week.
Beavers vs Washington State at Reser Stadium – Kickoff: 6 pm PDT- Too early for a preliminary forecast.
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Forecast for Roseburg:
- Mostly cloudy with a slight (20%) chance of showers this AM, partly cloudy with a slight (20%) chance of showers this afternoon (under 0.10 in. of rain possible), just partly cloudy tonight,
- Partly cloudy with a (30%) chance of showers and a bit cooler Monday (under 0.10 in. of rain possible) and Monday night (under 0.10 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of showers Tuesday AM, partly cloudy and a bit warmer in the afternoon, then mostly cloudy Tuesday night.
- highs 76-72 warming to 75 Tuesday lows 52-49.
- Mostly cloudy and a bit cooler Wednesday with a slight (20%) chance of showers in the afternoon and Wednesday night,
- A slight (20%) chance of AM showers, partly cloudy and a bit cooler Thursday afternoon and evening, mostly cloudy late at night.
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday and Friday night,
- Then partly cloudy and a bit warmer Saturday.
- highs 73-75 lows near 48. (seasonal averages high 74 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 AM coastal showers and just mostly cloudy and a bit cooler this afternoon while a (30%) chance of inland showers (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of coastal showers tonight while partly cloudy in the evening inland and mostly cloudy late tonight,
- Mostly cloudy with a (30%) chance of showers and a bit cooler Monday (under 0.10 in. of rain possible), a (40%) chance of showers Monday night (under 0.10 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM showers Tuesday, partly cloudy and a bit cooler in the afternoon, mostly cloudy in the evening, then partly cloudy late at night.
- highs 67-65 lows 53-50.
- Some AM clouds, mostly cloudy with a slight (20%) chance of showers Wednesday afternoon and Wednesday night,
- A slight (20%) chance of AM showers, partly cloudy Thursday afternoon, mostly cloudy at night,
- Mostly cloudy Friday, then partly cloudy Friday night and Saturday.
- highs near 65 lows 52-50. (seasonal averages high 63 low 48)
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Forecast for the Cascades in Lane County:
- A (40%) chance of AM showers, a mix of clouds an sun and a bit warmer with a slight (20%) chance of showers this afternoon, just partly cloudy tonight,
- A mix of clouds and sun with a (30%) chance of showers Monday, becoming mostly cloudy with a (40%) chance of showers Monday night,
- A mix of clouds and sun Tuesday with a (30%) chance of showers, partly cloudy with a slight (20%) chance of showers at night.
- snow level 7,500 ft. today, free air freezing level 10,000 ft. rising to 11,000 ft. late tonight, snow level above 8,000 ft. Monday through Tuesday, then above 8,000 ft. falling to 8,000 ft. late Tuesday night.
- highs near 57 lows 42-46 cooling back to 42 Tuesday night.
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Wednesday night,
- A mix of clouds and sun and a bit cooler Thursday with a slight (20%) chance of showers, mostly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
- Then partly cloudy and a bit warmer Friday through Saturday.
- snow level 7,500 ft. Wednesday and Wednesday night, 7,500 ft. falling to 6,500 ft. Thursday, 6,000 ft. Thursday evening, free air freezing level 7,500 ft. late Thursday night, 7,500 ft. rising to 8,000 ft. Friday afternoon, then free air freezing level 8,000 ft. Friday night and Saturday.
- highs 52-59 lows 37-35 warming back to 37 Friday night.
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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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