Check out my latest Eugene Daily News Weather Or Not column:
Finding A Way To Make Sure We Don’t Run Out
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Here is my weekly weather quiz question for the last time. What is a “Dry Thunderstorm?” Here is the correct answer. A Dry Thunderstorm: Generally a high-based thunderstorm when lightning is observed, but little if any precipitation reaches the ground. Most of the rain produced by the thunderstorm evaporates into relatively dry air beneath the storm cell. May also be referred to as “dry lightning.” 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 High Pressure Ridge (Shaded “Arch” shape with arrows) takes over returning the sunshine. The graphics for days 3-7 show the next storm systems that will approach and try to move through the Pacific Northwest Tuesday through next Saturday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 33 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 30 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Advisories:
- A FLOOD WARNING IS IN EFFECT FOR THE LOWER COLUMBIA RIVER AT VANCOUVER IN MULTNOMAH COUNTY OREGON AND CLARK COUNTY WASHINGTON.
- 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:
- Partly cloudy tonight and Monday AM, mostly sunny and a bit warmer in the afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night,
- AM clouds, partly cloudy with a slight (20%) chance of showers and a bit cooler Wednesday afternoon, partly cloudy with a slight (20%) chance of evening showers, then just mostly cloudy late at night.
- lows 46-52 highs 74-80 cooling to 77 Wednesday.
- A mix of clouds and sun and slightly warmer Thursday, partly cloudy Thursday night,
- Partly cloudy with a (40%) chance of showers and a slight (20%) chance of thunderstorms and a bit cooler Friday afternoon and evening, a (40%) chance of showers late at night,
- A mix of clouds and sun and a bit cooler with a (30%) chance of showers Saturday and a slight (20%) chance of afternoon thunderstorms, then mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Saturday night and Sunday (a bit cooler).
- highs 78-72 lows near 52. (seasonal averages high 68 low 44)
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Eugene-Springfield Pollen Count
Grass………. High (35)
Trees………. Moderate (23)
Last Counted: 5/18/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Partly cloudy tonight and Monday AM, sunny and a bit warmer Monday afternoon, mostly clear at night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late Tuesday night,
- Partly cloudy Wednesday AM, mostly cloudy and a bit cooler with a slight (20%) chance of thunderstorms in the afternoon and Wednesday night.
- lows 50-55 highs 77-84 cooling to 79 Wednesday.
- Mostly cloudy with a slight (20%) chance of thunderstorms and a bit warmer Thursday through Saturday evening, a slight (20%) chance of showers late Saturday night and Sunday AM, then a slight (20%) chance of afternoon thunderstorms.
- highs 82-72 lows 56-52. (seasonal averages high 71 low 48)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy tonight and Monday AM, sunny and a bit warmer in the afternoon, mostly clear Monday night,
- Partly cloudy in the AM, sunny and a bit cooler Tuesday afternoon, mostly cloudy at the shore at night while mostly clear in the evening inland and partly cloudy with patchy inland fog late Tuesday night,
- Mostly cloudy with patchy fog and drizzle Wednesday AM, mostly cloudy in the afternoon, then just mostly cloudy at night.
- lows 49-53 highs 62-60.
- Mostly cloudy and a bit warmer Thursday and at night,
- Mostly cloudy with a (30%) chance of thunderstorms and a bit cooler Friday and Friday night,
- Mostly cloudy Saturday with a slight (20%) chance of AM showers, just mostly cloudy Saturday afternoon and at night,
- Then mostly cloudy Sunday with a slight (20%) chance of afternoon thunderstorms.
- highs 66-63 lows near 52. (seasonal averages high 59 low 48)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late tonight,
- Mostly sunny and warmer Monday, mostly clear Monday night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of showers late Tuesday night,
- Partly cloudy with a slight (20%) chance of showers Wednesday AM, showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, mostly cloudy with a good (50%) chance of showers late at night.
- snow level above 8,000 ft. tonight, free air freezing level 11,000 ft. Monday, 12,000 ft. Monday night and Tuesday, snow level above 8,000 ft. Tuesday night through Wednesday night.
- lows 38-48 cooling to 45 Wednesday night highs 66-69 cooling back to 66 Wednesday.
- A mix of clouds and sun and slightly cooler with a (40%) chance of showers Thursday and a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, partly cloudy late Thursday night,
- A mix of clouds and sun with a good (50%) chance of showers and a bit cooler Friday with a slight (20%) chance of thunderstorms in the afternoon and evening, just mostly cloudy late Friday night,
- A mix of clouds and sun with a good (50%) chance of showers Saturday with a slight (20%) chance of thunderstorms in the afternoon, showers likely (70%) with a slight (20%) chance of thunderstorms at night,
- Mostly cloudy with AM showers likely (70%) and a slight (20%) chance of thunderstorms, then a good (50%) chance of showers and a bit cooler Sunday afternoon.
- snow level above 8,000 ft. Thursday through Sunday,
- highs 65-62 lows 43-46.
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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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