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Check out my latest Eugene Daily News Weather Or Not Column Did You Ever Wonder Who Discovered What About Meteorology And When?”

 

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No winner this week. Here is my weekly weather quiz question for the last time. What is a “Backfire?” Here is the correct answer. This answer is particularly significant now with all of the wildfires in the West. A backfire is a fire deliberately started to stop an advancing fire by creating a burned area in its path. The hope is that the fire will stop at the already burned area because there would be no fuel left to burn. 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 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) will cover the Pacific Northwest for the next few days. That means more sunshine and warm temperatures. About half of the country has be very hot, but they are cooing down now as we warm up to near the 90 degree mark and then drop back down a bit.  An upper level low (shaded “U” shape with blue arrows) will slide down from the Gulf of Alaska and a cold front will sweep down from the northwest between Wednesday and Thursday and that will mean temperatures cooling to the more comfortable mid 80s.

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The Grass Pollen Count is listed as barely Moderate at 5 and Tree pollen is Low at 1 as of 7/19/13 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, sunny and a bit warmer Monday, Tuesday, and Wednesday with clear skies at night lows near 53 highs near hovering very near 90. Sunny Thursday, mostly clear at night, mostly sunny Friday, clear in the evening, partly cloudy late Friday night and Saturday AM, then mostly sunny and cooler Saturday afternoon and Sunday with mostly clear skies Saturday night highs 88-84 lows near 50. (seasonal averages high 84 low 52)

 

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Forecast for the Umpqua Basin including Roseburg: Clear tonight, partly cloudy Monday AM, sunny and warm in the afternoon, clear Monday night, sunny and warm Tuesday, mostly clear in the evening, partly cloudy late Tuesday night, mostly sunny Wednesday, then mostly clear at night lows 57-60 cooling to 55 Wednesday night highs near 94. Mostly sunny and a bit cooler Thursday and  Friday, mostly clear at night, partly cloudy Saturday AM, sunny in the afternoon, mostly clear at night, then mostly sunny and cooler Sunday highs 93-88 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: Clear tonight inland, clear this evening, mostly cloudy with patchy fog late tonight and Monday AM at the shore, sunny in the afternoon, clear Monday evening, partly cloudy late Monday night, AM clouds and patchy fog at the shore, sunny in the afternoon, sunny inland, mostly clear in the evening, then mostly cloudy Wednesday night lows 53-55 highs 67-65. Partly cloudy Thursday through Friday, mostly clear Friday evening, then partly cloudy late Friday night through Sunday highs near 67 lows near 53. (seasonal averages high 65 low 53)

 

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Forecast for the Cascades of Lane County: Clear tonight, sunny Monday, clear at night sunny Tuesday AM, partly cloudy in the afternoon and night, mostly sunny and cooler Wednesday, then clear at night free air freezing level 16,000 ft. tonight through Tuesday, 16,000 ft. falling to 15,000 ft. Tuesday night, then 15,000 ft. Wednesday and Wednesday night lows near 52 highs 79-76. Sunny Thursday and Friday with clear skies at night, then mostly sunny and cooler Saturday and Sunday with clear skies Saturday night free air freezing level 15,000 ft. Thursday through Saturday night, then 15,000 ft. falling to 14,00 ft. Sunday afternoon highs 77-70 lows 52-49.

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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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For more click to continue on to http://timchueyweather4u.com/blog