________________
Check out my latest Eugene Daily News Weather Or Not Column Did You Ever Wonder Who Discovered What About Meteorology And When?”
________________
Here is my weekly weather quiz question for the last time. What is a “Backfire?” 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.
________________
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.
________________
An upper level high pressure ridge (shaded “Arch” shape with blue arrows) will cover the Pacific Northwest for the next few days. That means more sunshine and fairly warm temperatures. About half of the country is going to be very hot (for some very very hot with the heat index figured in) for the next few days as we warm up to near the 90 degree mark and then drop back down a bit. An upper level low (shaded “O” shape with blue arrows) will slide down from the Gulf of Alaska and a cold front will sweep down from the northwest on Thursday and that will mean temperatures cooling to the more comfortable mid 80s.
________________
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.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly clear tonight, then mostly sunny Saturday through Monday with clear to mostly clear nights lows 50-52 highs 89-87 warming back to 89 Monday (maybe pushing to 90). Sunny and very warm Tuesday, mostly clear at night, mostly sunny Wednesday, clear in the evening, partly cloudy late at night and Thursday AM, then mostly sunny and cooler Thursday afternoon and Friday while mostly clear at night highs 90-85 lows near 52. (seasonal averages high 84 low 52)
________________
Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, partly cloudy Saturday AM, sunny in the afternoon, mostly clear Saturday night, partly cloudy Sunday AM, sunny in the afternoon, clear at night, mostly sunny Monday, then mostly clear Monday night lows near 58 highs 90-96. Mostly sunny Tuesday through Friday with mostly clear skies at night highs 97-88 lows near 57. (seasonal averages high 85 low 57)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy with patchy coastal fog late tonight and Saturday AM, sunny in the afternoon, mostly clear in the evening, mostly cloudy late Saturday night, partly cloudy Sunday AM, sunny in the afternoon, mostly clear in the evening, partly cloudy late Sunday night and Monday AM, sunny in the afternoon, then mostly clear Monday night lows 55-53 highs 66-69. Mostly sunny, Tuesday, partly cloudy Tuesday night and Wednesday, mostly clear in the evening, partly cloudy late Wednesday night and Thursday AM, sunny in the afternoon, mostly clear in the evening, then partly cloudy late Thursday night and Friday highs 70-66 lows near 54. (seasonal averages high 65 low 53)
________________
Forecast for the Cascades of Lane County: Clear tonight, sunny Saturday, Sunday and Monday with clear skies at night free air freezing level 16,000 ft. tonight through Sunday, 16,000 ft. falling to 15,000 ft. Sunday night, then 15,000 ft. Monday and Monday night lows 53-48 warming to 52 Sunday night and cooling to 47 Monday night highs 82-78 warming back to 82 Monday. Mostly sunny Tuesday, partly cloudy at night, a mix of clouds and sun Wednesday, clear at night, then mostly sunny Thursday and Friday with mostly clear skies at night free air freezing level 15,000 ft. rising to 16,000 ft. Tuesday afternoon, 16,000 ft. falling to 15,000 ft. Tuesday night, then 15,000 ft. Wednesday through Friday highs 82-75 lows near 48.
________________
**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.
________________
Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
________________