May
03.
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Check out my latest Eugene Daily News Weather Or Not Column Does It Fall From The Sky? Hail Yes It Does.
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And don’t forget my latest feature story in the continuing series on service club organizations called Truly Altrusa.
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No winner. Here is my weekly weather quiz question for the last time. Define the term “inversion.” Here is the correct answer. Inversion (abbrev. INVRN) Generally, a departure from the usual increase or decrease in an atmospheric property with altitude. Specifically it almost always refers to a temperature inversion, i.e., an increase in temperature with height, or to the layer within which such an increase occurs. An inversion is present in the lower part of a cap. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.
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Upper level Low Pressure (Shaded “Oval” shape, then “U” shape) has replaced the high pressure returning the much cooler onshore airflow. A weak cold front returned the chance for showers. Another frontal system (position shown is Monday) will move in Sunday increasing our rain chances. Football forecast for the Ducks Spring Game today. Kickoff 11:00 AM- Mostly cloudy 55 degrees warming to the low 60s by the end of the game- just a slight chance of rain, then rain chance increasing to a 40% chance in the afternoon, so it probably won’t rain at Autzen Stadium during the game.
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Advisories: None at this time.
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Air Quality Index: Eugene-Springfield: The Air Quality Index is 26 in the Good category measuring Ozone at Delight Valley School, Saginaw. Data courtesy of Lane Regional Air Protection Agency (LRAPA)
Oakridge: The Air Quality Index is 19 in the Good category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Eugene-Springfield Pollen Count:
Grass……….Moderate (8)
Trees……….High (183)
Last Counted: 5/2/14
Data Courtesy of Oregon Allergy Associates.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with a slight (20%) chance of rain this AM, a (40%) chance of rain and cooler this afternoon (under 0.10 in. of rain possible), rain tonight (0.25 in. of rain possible),
- Mostly cloudy with rain Sunday AM, afternoon showers (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph), showers likely (70%) at night (0.25 in. of rain possible),
- Mostly cloudy with showers likely (70%) Monday AM, showers likely (70%) and a slight (20%) chance of thunderstorms in the afternoon and evening, a good (50%) chance of showers late Monday night.
- highs 63-58 lows 48-46.
- A mix of clouds and sun with a good (50%) chance of showers Tuesday, partly cloudy with a (30%) chance of showers at night,
- A mix of clouds and sun with a (30%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night,
- A (40%) chance of showers Thursday, then mostly cloudy with a (40%) chance of showers Thursday night and Friday.
- highs 60-65 lows near 44. (seasonal averages high 64 low 42).
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Forecast for the Umpqua Basin including Roseburg
- Mostly cloudy with a slight (20%) chance of showers this AM, a slight (20%) chance of rain this afternoon and evening (under 0.10 in. of rain possible), rain late tonight (under 0.10 in. of rain possible),
- Rain likely (60%) Sunday AM, showers in the afternoon (0.15 in. of rain possible), evening showers likely (70%), showers late Sunday night (0.15 in. of rain possible),
- AM showers, showers and a slight (20%) chance of thunderstorms Monday afternoon and evening, then mostly cloudy with a (40%) chance of showers late Monday night.
- highs 67-60 lows 48-45.
- Mostly cloudy with a (30%) chance of showers Tuesday, a slight (20%) chance of showers at night and Wednesday, just mostly cloudy Wednesday night,
- A slight (20%) chance of showers Thursday, then mostly cloudy with a (40%) chance of showers Thursday night and Friday.
- highs 63-70 lows 39-48. (seasonal averages high 67 low 45)
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Forecast for the South Oregon Coast including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) chance of showers this AM, a (30%) chance of rain this afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of evening rain, rain late tonight (0.30 in. of rain possible),
- Rain Sunday AM, showers in the afternoon (0.40 in. of rain possible) and breezy (Wind: SW 15-25 mph at the beaches, SW 10-15 mph inland), showers Sunday night (0.40 in. of rain possible),
- Mostly cloudy with showers Monday AM, showers with a slight (20%) chance of thunderstorms in the afternoon and evening, then a (40%) chance of showers Monday night.
- highs 60-57 lows 52-46.
- Mostly cloudy with a (30%) chance of showers Tuesday, a slight (20%) chance of showers at night and Wednesday, just mostly cloudy Wednesday night,
- A slight (20%) chance of showers Thursday, then mostly cloudy with a (40%) chance of showers Thursday night and Friday.
- highs 57-62 lows 44-50. (seasonal averages high 58 low 45).
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Forecast for the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of rain and cooler today, a (40%) chance of evening rain, rain and snow likely (70%) tonight (0.10 in. of rain possible, 1 in. of snow possible),
- AM rain and snow, showers Sunday afternoon and windy (Wind: SW 20-30 mph), rain and snow showers Sunday night and windy (Wind: SW 20-30 mph),
- AM rain and snow showers, rain and snow showers with a slight (20%) chance of thunderstorms and breezy Monday afternoon and evening, a good (50%) chance of rain and snow showers Monday night,
- snow level 6,000 ft. today, 5,500 ft. tonight and Sunday, 5,000 ft. at night, 4,500 ft. Monday, then 5,000 ft. Monday night.
- highs 50-40 lows 33-30.
- Cloudy with a good (50%) chance of rain and snow showers Tuesday, mostly cloudy with a (40%) chance of rain and snow showers Tuesday night,
- A (30%) chance of rain and snow showers Wednesday, a slight (20%) chance of rain and snow showers at night,
- Mostly cloudy with a (40%) chance of rain and snow showers Thursday, then mostly cloudy with a (40%) chance of rain Thursday night and Friday.
- snow level 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 4,500 ft. Wednesday, 5,500 ft. at night and Thursday, 7,000 ft. at night, then above 8,000 ft. Friday.
- highs 42-52 lows 30-33.
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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 Eugene Daily News.com.
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