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Check out my latest Eugene Daily News Weather Or Not Column Waiting For “Armageddon?” Where’s Bruce Willis When You Need Him?
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Here is my weekly weather quiz question. How does the National Weather Service define “Yellow Snow?” And no, this is not a joke. 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 Blue-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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An upper level high pressure ridge (“Arch” shape with blue arrows) still covers the Pacific Northwest. It’s called a “Rex” block because of the way it blocks storms from coming through it. That means continuing sunshine but temperatures will start to cool off a bit. An upper level low (“U” shape with blue arrows) will slide down from the Gulf of Alaska Saturday and push over the ridge, then move to the northeast. A weak cold front (position shown is Sunday) will slowly move down from the northwest Saturday and that will mean temperatures cooling to the more comfortable mid to low 80s as the front slowly moves across Oregon. The slow cooling will make it more comfortable for fair goers at the Lane County Fair that continues through Sunday and the Relay For Life Friday and Saturday at Willamette High School.
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The Grass Pollen Count is listed as Low at 3 and Tree pollen is at 0 as of 7/25/13 and both have risen a bit according to Oregon Allergy Associates.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Sunny and not quite as warm (really) today, clear tonight, then sunny and a bit cooler Friday, mostly clear at night, partly cloudy and a lot cooler Saturday, mostly clear in the evening, then cloudy late Saturday night highs 94-85 lows 53-50. Cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, mostly clear in the evening, mostly cloudy late Sunday night and Monday AM, mostly sunny in the afternoon, partly cloudy in the evening, mostly cloudy late Monday night and Tuesday AM, partly cloudy in the afternoon and evening, mostly cloudy Tuesday night and Wednesday AM, then partly cloudy Wednesday afternoon highs near 82 lows near 52. (seasonal averages high 84 low 52)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy this AM, sunny and a touch cooler today, mostly clear tonight, partly cloudy in the AM, sunny and as bit cooler Friday afternoon, clear Friday night, sunny Saturday, mostly clear in the evening, then partly cloudy late Saturday night highs 95-87 lows 59-54. Partly cloudy and much cooler Sunday through Monday, mostly clear in the evening, partly cloudy late Monday night, cloudy Tuesday AM, partly cloudy in the afternoon, mostly clear in the evening, mostly cloudy late Tuesday night and Wednesday AM, then sunny Wednesday afternoon highs 82-84 warming to 87 Wednesday lows near 56. (seasonal averages high 86 low 57)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy fog this AM, sunny this afternoon, mostly clear in the evening and partly cloudy late tonight inland while mostly cloudy with patchy fog late tonight and Friday AM, sunny in the afternoon, mostly clear in the evening, then partly cloudy with patchy coastal fog late Friday night, mostly cloudy with patchy coastal fog Saturday AM, sunny in the afternoon highs 65-63 lows near 52. AM clouds and patchy fog, sunny Saturday afternoon, mostly clear in the evening, mostly cloudy with patchy fog late Saturday night and Sunday AM, sunny in the afternoon, mostly cloudy with patchy fog at night through Monday night, cloudy Tuesday, partly cloudy in the evening, mostly cloudy Tuesday night and Wednesday AM, then sunny Wednesday afternoon highs 65-67 lows near 53. (seasonal averages high 65 low 53)
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Forecast for the Cascades of Lane County: Partly cloudy this AM, mostly sunny this afternoon, mostly clear tonight, sunny and a bit cooler Friday, mostly clear and cooler Friday night, sunny and much cooler Saturday, then mostly clear Saturday night free air freezing level 15,000 ft. today through Saturday, then 15,000 ft. falling to 13,000 ft. at night highs 77-70 lows 54-44. Sunny Sunday, clear in the evening, partly cloudy Sunday night, and Monday AM, mostly sunny in the afternoon, partly cloudy Monday night through Wednesday free air freezing level 13,000 ft. Sunday through Wednesday highs near 70 lows 45-42.
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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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