Check out my latest Eugene Daily News Weather Or Not column:
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Here is my weekly weather quiz question for the last time. What is “Dry floodproofing?” Here is the correct answer. Dry Floodproofing in hydrologic terms, a dry floodproofed building is sealed against floodwaters. All areas below the flood protection level are made watertight. Walls are coated with waterproofing compounds or plastic sheeting. Openings like doors windows, sewer lines and vents are closed, whether permanently, with removable shields, or with sandbags. The flood protection level should be no more than 2 or 3 feet above the top of the foundation because the buildings walls and floors cannot withstand the pressure of deeper water. I’ll have a new weekly weather quiz question for you 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 High Pressure Ridge (Shaded “Arch” shape with arrows) took over for drying time the rest of your weekend. The graphics for days 3-7 show a frontal system pushing into California Wednesday then another front approaching the Pacific Northwest Saturday to move in next Sunday. There is even another frontal system located well offshore Sunday heading our way next week.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 41 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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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:
- Clear this evening, mostly cloudy late tonight,
- AM clouds, mostly sunny and a bit cooler Monday afternoon, mostly cloudy at night,
- AM clouds, partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon and evening, cloudy with a slight (20%) chance of showers late at night through Wednesday evening, then just mostly cloudy late Wednesday night.
- lows 48-50 highs 76-68.
- A mix of clouds and sun Thursday, partly cloudy at night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Friday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy Friday night,
- A mix of clouds and sun and a bit warmer Saturday, partly cloudy in the evening, mostly cloudy late Saturday night,
- Then a mix of clouds and sun and slightly cooler Sunday.
- highs 68-72 cooling to 70 Sunday lows 47-50 cooling to 48 Saturday night. (seasonal averages high 67 low 43)
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Eugene-Springfield Pollen Count
Grass………. Low (2)
Trees………. Moderate (30)
Last Counted: 5/10/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Mostly clear tonight,
- Sunny and a bit cooler Monday, partly cloudy Monday night,
- Partly cloudy Tuesday with a slight (20%) of thunderstorms and a bit cooler in the afternoon, mostly cloudy with a (30%) chance of evening thunderstorms, a (30%) chance of showers at night,
- Cloudy and a bit cooler with a (30%) chance of showers Wednesday afternoon, then mostly cloudy with a slight (20%) chance of showers Wednesday night.
- lows 52-54 highs 83-67.
- Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and a bit cooler Thursday afternoon, partly cloudy in the evening, just mostly cloudy late Thursday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday afternoon, partly cloudy at night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday through Sunday.
- highs 72-76 cooling to 72 Sunday lows near 50. (seasonal averages high 70 low 47)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy coastal fog late tonight while mostly clear inland this evening and mostly cloudy with patchy inland fog late tonight,
- Patchy AM fog, cloudy Monday afternoon, mostly cloudy with patchy fog late Monday night and Tuesday AM, just mostly cloudy at the shore in the afternoon while mostly cloudy inland in the AM and partly cloudy with a slight (20%) chance of inland afternoon thunderstorms, mostly cloudy with a slight (20%) chance of showers late Tuesday night,
- Cloudy with a (30%) chance of showers Wednesday, then mostly cloudy with a slight (20%) chance of at night.
- lows 50-53 highs near 60.
- Mostly cloudy Thursday AM, partly cloudy and slightly warmer in the afternoon and evening, mostly cloudy late Thursday night,
- Mostly cloudy Friday, partly cloudy at night,
- Mostly cloudy and slightly cooler Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday.
- highs near 60 lows 47-50. (seasonal averages high 59 low 47)
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Forecast for the Cascades in Lane County:
- Clear tonight,
- Mostly sunny and a bit cooler Monday, partly cloudy Monday night,
- Partly cloudy and a bit cooler with a good (50%) chance of showers and thunderstorms Tuesday afternoon, mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, mostly cloudy with a good (50%) chance of showers late at night,
- Cloudy with a good (50%) chance of showers and a bit cooler Wednesday, mostly cloudy with a (40%) chance of showers late Wednesday night.
- free air freezing level 12,000 ft. tonight through Monday night, then snow level above 8,000 ft Tuesday through Wednesday night.
- lows near 42 highs 69-57.
- A mix of clouds and sun with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly cloudy with a slight (20%) chance of AM showers, a bit warmer with a good (50%) chance of showers and a slight (20% chance of thunderstorms Friday afternoon, partly cloudy with a (40%) chance of showers and a slight (20%) chance of thunderstorms in the evening, a slight (20%) chance of showers late Friday night,
- A mix of clouds and sun and a bit warmer Saturday with a (30%) chance of showers Saturday afternoon, partly cloudy with a (40%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late at night,
- A mix of clouds and sun Sunday and slightly warmer with a slight (20%) chance of afternoon showers.
- snow level above 8,000 ft. Thursday and Thursday night, free air freezing level 11,000 ft. Friday AM, snow level above 8,000 ft. Thursday through Saturday night, free air freezing level 11,000 ft. Sunday AM, then snow level above 8,000 ft. Sunday afternoon.
- highs 57-60 lows near 40.
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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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