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 Low Pressure Trough (Shaded “U” shape with arrows) is controlling our unsettled weather. 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 28 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 17 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 29 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:
- Mostly cloudy this AM, partly cloudy and a bit cooler in the afternoon and tonight,
- AM clouds, mostly sunny and a bit warmer Monday afternoon, mostly clear at night,
- Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night.
- highs 64-78 lows 46-52.
- Partly cloudy with a slight (20%) chance of showers and slightly cooler Wednesday afternoon and evening, just partly cloudy late at night,
- Partly cloudy with a slight (20%) chance of showers and a bit cooler Thursday afternoon and evening, just partly cloudy late Thursday night,
- Partly cloudy with a slight (20%) chance of showers Friday afternoon and at night,
- Then partly cloudy with a (30%) chance of showers Saturday.
- highs 77-74 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:
- Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and slightly cooler this afternoon and evening, partly cloudy with a slight (20%) chance of showers late tonight,
- AM clouds, 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.
- highs 69-83 lows 50-55.
- Partly cloudy and a bit cooler Wednesday with a slight (20%) chance of showers and thunderstorms in the afternoon and evening, mostly cloudy with a slight (20%) chance of thunderstorms late at night,
- Mostly cloudy with a slight (20%) chance of thunderstorms and a bit warmer Thursday through Friday night,
- Then mostly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Saturday.
- highs 76-82 cooling to 78 Saturday lows near 54. (seasonal averages high 71 low 48)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy fog and drizzle this AM, mostly cloudy and a bit cooler in the afternoon, mostly clear in the evening, partly cloudy late tonight,
- Partly cloudy in the AM, mostly sunny and a bit warmer Monday afternoon, mostly clear at night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, mostly cloudy late Tuesday night.
- highs 59-62 lows 50-52.
- Partly cloudy and a bit warmer with a slight (20%) chance of showers and thunderstorms Wednesday through Friday night,
- Then partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms Saturday.
- highs 60-66 cooling to 63 Sunday lows near 52. (seasonal averages high 59 low 48)
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Forecast for the Cascades in Lane County:
- Mostly cloudy and a bit cooler with a (40%) chance of showers today (0.10 in. of rain possible), a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late tonight,
- Partly cloudy and warmer Monday, mostly clear Monday night,
- Mostly sunny Tuesday, then partly cloudy with a (30%) chance of showers late Tuesday night.
- snow level above 8,000 ft. today and tonight, free air freezing level 11,000 ft. rising to 12,000 ft. Monday, 12,000 ft. Monday night and Tuesday, snow level above 8,000 ft. Tuesday night.
- highs 52-69 lows 39-45.
- A mix of clouds and sun with a good (50%) chance of showers and a slight (20%) chance of thunderstorms, a bit cooler Wednesday afternoon, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms at night,
- A mix of clouds and sun and slightly cooler with a (40%) chance of showers and a slight (20%) chance of thunderstorms and a bit cooler Thursday afternoon, mostly cloudy with a slight (40%) chance of showers Thursday night and a slight chance of evening thunderstorms,
- Partly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon and evening, a slight (20%) chance of showers late Friday night,
- Then a mix of cloudy and sun with a (30%) chance of showers and a slight (20%) chance of thunderstorms Saturday.
- snow level above 8,000 ft. Wednesday through Saturday,
- highs near 66 lows 45-43 warming back to 45 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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