_______________
Check out my latest Eugene Daily News Weather Or Not Column Remember, The First “Marathon Man” Finished Both The Race And His Life.
________________
No winner this week. Here is my new weekly weather quiz question for the last time. What is the difference between a “nautical mile” and a “statute mile?” Here is the correct answer. A nautical mile is a unit of distance used in marine navigation and marine forecasts. It is equal to 1.15 statue miles or 1852 meters. It is also the length of 1 minute of latitude. 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.
________________
Advisories: There is a Blue-Green Algae warning that continues for Dexter Reservoir and Dorena Reservoir has just been added to the list. 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 low (“U” shape with blue arrows) has moved to the south away from us and will move eastward through California. A weakening cold front will move through Oregon on the heals of a cold front that already slid by and have little or no effect. The upper airflow will be coming from just about due-West which is called “Zonal Flow.” The net result will be pretty stable and warm temperatures.
________________
The Grass Pollen Count is listed as Absent at 0 and Tree pollen is Low at 2 as of 8/14/13 according to Oregon Allergy Associates.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
Partly cloudy this AM, sunny this afternoon and Monday, clear tonight and mostly clear Monday night.
Mostly sunny Tuesday then, mostly clear Tuesday night.
highs near 86 lows near 54-50.
Mostly sunny Wednesday, partly cloudy Wednesday night through Friday evening, mostly cloudy late at night and Saturday AM, then partly cloudy Saturday afternoon.
highs 89-82 lows near 55. (seasonal averages high 83 low 51)
________________
Forecast for the Umpqua Basin including Roseburg:
Mostly cloudy with areas of smoke and haze this AM, sunny with more patchy smoke and haze in the afternoon, clear with areas of smoke tonight.
Sunny with patchy smoke Monday, mostly clear with more patchy smoke at night.
Sunny with areas of smoke Tuesday, mostly clear in the evening, partly cloudy with patchy smoke and a slight (20%) chance of showers and thunderstorms Tuesday night.
highs 93-87 lows 58-60.
Mostly sunny with more patchy smoke and a slight (20%) chance of thunderstorms Wednesday, partly cloudy with areas of smoke and a slight (20%) chance of thunderstorms Wednesday night, partly cloudy with areas of smoke again Thursday and Thursday evening, mostly clear with more smoke late Thursday night.
Sunny with areas of smoke Friday, partly cloudy with areas of smoke and patchy fog Friday night and Saturday.
highs 92-82 warming to 87 Friday lows 62-57. (seasonal averages high 85 low 55)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend:
Mostly cloudy with patchy coastal fog this AM, Sunny this afternoon, mostly clear in the evening, partly cloudy with patchy fog late tonight.
Partly cloudy with patchy AM fog Monday, partly cloudy Monday afternoon, mostly clear in the evening, mostly cloudy late Monday night, AM clouds, sunny Tuesday afternoon, then partly cloudy Tuesday night.
highs 72-66 lows 56-53.
Partly cloudy Wednesday through Friday. Then mostly cloudy with patchy fog Friday night and Saturday.
highs near 65-63 lows 56-52. (seasonal averages high 65 low 53)
________________
Forecast for the Cascades of Lane County:
Mostly sunny today and Monday with mostly clear nights.
Mostly sunny Tuesday AM, partly cloudy in the afternoon and Tuesday night.
free air freezing level 14,000 ft. rising to 15,000 ft. this afternoon, 15,000 ft. tonight, 15,000 ft. rising to 16,000 ft. Monday afternoon, 16,000 ft. at night, 16,000 ft. falling to 15,000 ft. Tuesday afternoon, then 15,000 ft. falling to 14,000 ft. Tuesday night.
highs near 77 lows near 49.
Mostly sunny Wednesday AM, a mix of clouds and sun with a slight (20%) chance of showers, a slight (20%) chance of thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of showers late Wednesday night, a mix of clouds and sun with a slight (20%) chance of showers Thursday AM, a mix of clouds and sun in the afternoon and evening with a slight (20%) chance of thunderstorms, partly cloudy at night.
Mostly sunny Friday AM, then partly cloudy Friday afternoon through Saturday AM, then mostly sunny with a slight (20%) chance of showers and thunderstorms Saturday.
free air freezing level 15,000 ft. Wednesday and Wednesday evening, snow level above 8,000 ft. late Wednesday night and Thursday AM, free air freezing level 13,000 ft. in the afternoon through Saturday AM, then snow level above 8,000 ft. Saturday afternoon.
highs near 78-69 lows 49-46.
________________
**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 and Lane County news on-line at Eugene Daily News.com.
________________