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No winner this week. Here is my weekly weather quiz question for the last time. What is an “undertow?” Undertow is a relatively small-scale surf-zone current moving away from the beach. Rip currents form as waves disperse along the beach causing water to become trapped between the beach and a sandbar or other underwater feature. The water converges into a narrow, river-like channel moving away from the shore at high speed. 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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Advisories: There is a Green Algae warning that continues for Dexter Reservoir. Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.
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The upper air flow (blue arrows aiming more from the west) return some clouds and keep us a bit cooler for a while. A cold front will bring a slight chance of drizzle to the coast and Umpqua Basin late in the week.
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The Grass Pollen Count is listed as High again at 95 and Tree pollen is Moderate at 20 as of 7/01/13 according to Oregon Allergy Associates.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly clear tonight, a mix of clouds and sun Monday AM, mostly sunny Monday afternoon, clear at night, sunny Tuesday, clear in the evening, partly cloudy at night and Wednesday AM, mostly sunny in the afternoon, mostly clear in the evening, then mostly cloudy Wednesday night lows 51-55 cooling to 52 Wednesday night highs 86-88. Mostly cloudy Thursday AM, partly cloudy in the afternoon and evening, cloudy late Thursday night and Friday AM, partly cloudy in the afternoon and evening, mostly cloudy Friday night, partly cloudy Saturday through Sunday AM, then mostly sunny Sunday afternoon highs 80-77 warming back to 86 Sunday lows 52-56. (seasonal averages high 80 low 51)
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Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, partly cloudy with patchy fog Monday AM, sunny in the afternoon, mostly clear at night, sunny Tuesday, clear in the evening, mostly cloudy late Tuesday night, then partly cloudy Wednesday and Wednesday night lows 57-60 cooling to 57 Wednesday night highs 90-88. Mostly cloudy Thursday AM, sunny in the afternoon, partly cloudy with patchy drizzle Thursday night and Friday, just partly cloudy Friday night and Saturday, mostly clear at night, then mostly sunny Sunday highs 82-90 lows near 57. (seasonal averages high 82 low 55)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy at the shore while mostly clear this evening inland, increasing to mostly cloudy with patchy fog late tonight and Monday AM, partly cloudy in the afternoon, mostly clear in the evening, mostly cloudy Monday night and Tuesday AM, sunny in the afternoon, mostly cloudy in the evening, then mostly clear in the evening, mostly cloudy late Tuesday night and Wednesday AM, partly cloudy in the afternoon and evening, mostly cloudy with patchy drizzle late Wednesday night lows near 55 highs near 70. Partly cloudy with patchy drizzle Thursday through Friday, partly cloudy Friday night and Saturday, mostly clear in the evening, partly cloudy late Saturday night and sunday AM, then sunny Sunday afternoon highs 67-73 lows near 56. (seasonal averages high 64 low 52)
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Forecast for the Cascades of Lane County: Mostly clear tonight, sunny Monday and Tuesday, clear at night, mostly sunny Wednesday, then mostly clear Wednesday night free air freezing level 15,000 ft. tonight through Tuesday night, 15,000 ft. falling to 14,000 ft. Wednesday, then 14,000 ft. falling to 13,000 ft. late at night lows 45-50 cooling to 46 Wednesday night highs 76-78. Most sunny Thursday through Sunday with mostly clear skies at night free air freezing level 13,000 ft. Thursday, 13,000 ft. falling to 12,000 ft. at night, 12,000 ft. rising to 13,000 ft. Friday and Friday night, 13,000 ft. rising to 14,000 ft. Saturday afternoon through Sunday highs 67-64 warming to 70 Sunday lows 46-48.
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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 news on-line at Eugene Daily News.com.
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