Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/05/youve-seen-them-fly-but-did-you-know-they-also-can-sail/
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Here is my weekly weather quiz question. What is an “Easterly Wave?” 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) has taken over returning the sunshine. An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) will move closer sending storms our way by late in the week. The graphics for days 1-3 show the front that will approach the area Thursday AM. The graphics for days 3-7 show the next storm systems that will approach and try to move through the Pacific Northwest Friday through next Tuesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 54 in the Moderate category measuring Ozone.
Oakridge: The Air Quality Index is 17 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 48 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:
- Mostly clear tonight,
- A slight (20%) chance of AM sprinkles, a mix of clouds and sun and a bit cooler Wednesday afternoon, partly cloudy with a slight (20%) chance of showers in the evening, just mostly cloudy late at night,
- Mostly cloudy and slightly cooler with a slight (20%) chance of showers Thursday afternoon, a (40%) chance of showers and a slight (20%) chance of thunderstorms in the evening, a (40%) chance of showers late at night,
- Then mostly cloudy with a good (50%) chance of showers and a bit cooler Friday and in the evening, then a slight (20%) chance of rain late Friday night.
- lows 52-48 highs 73-66.
- A bit cooler with a slight (20%) chance of showers Saturday AM, partly cloudy and a bit warmer in the afternoon and Saturday night,
- A mix of clouds and sun and a bit warmer Sunday and at night,
- Then partly cloudy and a bit warmer Monday (Memorial Day) through Tuesday.
- highs 69-74 lows 46-49. (seasonal averages high 68 low 45)
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Eugene-Springfield Pollen Count
Grass………. High (146)
Trees………. Moderate (42)
Last Counted: 5/22/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Mostly clear this evening, partly cloudy with a slight (20%) chance of thunderstorms late tonight,
- Mostly cloudy and cooler with a slight (20%) chance of thunderstorms Wednesday afternoon and evening, a slight (20%) chance of showers late Wednesday night and Thursday AM, a slight (20%) chance of thunderstorms and a bit cooler Thursday afternoon and evening, a (30%) chance of showers late at night,
- Mostly cloudy with a (40%) chance of AM showers, a good (50%) chance of showers and a slight (20%) chance of thunderstorms and a bit cooler Friday afternoon, cloudy with a (40%) chance of showers and a slight (20%) chance of thunderstorms in the evening, then a (40%) chance of showers late Friday night.
- lows 54-52 highs 75-64.
- Mostly cloudy with a (30%) chance of AM showers, partly cloudy and a bit warmer Saturday afternoon and evening, mostly cloudy late Saturday night and Sunday AM, partly cloudy and a bit warmer Sunday afternoon and at night,
- Then partly cloudy and a bit warmer Monday (Memorial Day) through Tuesday.
- highs 69-78 lows 49-52. (seasonal averages high 71 low 48)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening, mostly cloudy with patchy coastal fog and drizzle late tonight while mostly cloudy inland late tonight,
- Mostly cloudy and a bit cooler Wednesday with patchy AM fog and drizzle, mostly cloudy with patchy coastal fog and drizzle late Wednesday night while partly cloudy inland in the evening and mostly cloudy with a slight (20%) chance of inland showers late at night,
- Patchy AM coastal drizzle while a slight (20%) chance of AM inland showers and patchy drizzle, a bit warmer with a slight (20%) chance of showers Thursday afternoon, a (30%) chance of thunderstorms in the evening, a (30%) chance of showers of coastal showers late at night while inland showers likely (70%) late Thursday night,
- Mostly cloudy with a (30%) chance of showers and a bit cooler Friday, cloudy with a (30%) chance of showers at night.
- lows 52-50 highs 60-62 cooling to 59 Friday.
- Mostly cloudy Saturday with a slight (20%) chance of AM showers, just mostly cloudy and a bit warmer in the afternoon and late at night,
- Mostly cloudy and a bit warmer Sunday, partly cloudy Sunday night,
- Then partly cloudy Monday (Memorial Day) through Tuesday.
- highs near 64 lows near 50. (seasonal averages high 60 low 48)
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Forecast for the Cascades in Lane County:
- Partly cloudy with a slight (20%) chance of showers tonight,
- A mix of clouds and sun with a good (50%) chance of showers and a bit cooler with a slight (20%) chance of thunderstorms Wednesday afternoon and evening (0.25 in. of rain possible, more in storms), mostly cloudy with a slight (20%) chance of showers late at night,
- Mostly cloudy with a slight (20%) chance of showers Thursday AM, a good (50%) chance of showers and a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, a good (50%) chance of showers late Thursday night,
- Mostly cloudy with AM showers likely (70%), a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Friday afternoon and evening, a good (50%) chance of showers late Friday night.
- snow level above 8,000 ft. tonight through Friday night.
- lows 47-39 highs 64-53.
- Mostly cloudy with a (40%) chance of AM showers, just partly cloudy Saturday afternoon and Saturday night,
- A mix of clouds and sun and a bit warmer Sunday, partly cloudy at night,
- Partly cloudy and a bit warmer Monday (Memorial Day) and Monday night,
- Then partly cloudy and a bit warmer Tuesday.
- snow level above 8,000 ft. Saturday, free air freezing level 12,000 ft. falling to 11,000 ft. Saturday night, 11,000 ft. rising to 12,000 ft. Sunday afternoon, 12,000 ft. rising to 13,000 ft. Sunday night, 13,000 ft. Monday and Monday night, then 14,000 ft. falling to 13,000 ft. late Tuesday afternoon.
- highs 53-66 lows 37-42.
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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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