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Check out my latest Eugene Daily News Weather Or Not Column You Didn’t Do Anything, So It Must Be The TV Weather Guy’s Fault.

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Here is my new weekly weather quiz question. What or where is “Pangea?” 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 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.

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An upper level low (“U” shape with blue arrows) has moved to the south and is settling to the along the California/Oregon coast sending warmer air our way. High pressure (“Arch”shape in blue arrows) has take over long enough to heat us up a bit. The airflow continues to bringing a chance of isolated, mainly dry, thunderstorms over the mountains and spread smoke from existing wildfires. The southerly airflow for the next couple of days will mean that smoke from those wildfires has already started to seep into the South Willamette Valley. The weather for the Scandinavian Festival in Junction City that begins Thursday and continues through Sunday will be partly cloudy and cooler, in the 80s with a slight chance of a thunderstorm. I’ll keep you updated on that as we get closer to the weekend.

The Perseid meteor shower is in progress. The maximum number of “shooting stars” from the comet Swift-Tuttle will be visible after midnight Sunday through Tuesday. There could be as many as 50 sighted per hour as they move from the NE quadrant of the sky. For best viewing go to where there are no city lights to brighten the sky.

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The Grass Pollen Count is listed as Low at 3 and Tree pollen is Low at 2 as of 8/5/13 according to Oregon Allergy Associates.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Clear with patchy smoke tonight.

Increasing clouds with patchy smoke and a slight (20%) chance of showers and thunderstorms Wednesday afternoon, partly cloudy with patchy smoke and a slight (20%) chance of showers and thunderstorms Wednesday evening, partly cloudy at night.

More smoke with mostly cloudy skies in the morning and partly cloudy Thursday afternoon, partly cloudy with patchy smoke and a slight (20%) chance of evening showers and thunderstorms.

A mix of clouds and sun with more smoke and a slight (20%) chance of showers and thunderstorms Friday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms with patchy smoke again Friday night.

lows near 54 highs 84-80.

Partly cloudy with a slight (20%) chance of showers and thunderstorms Saturday through Sunday AM, then partly cloudy Sunday afternoon through Tuesday.

highs 80-85 cooling to near 80 Tuesday lows near near 53. (seasonal averages high 84 low 52)

 

 

 

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Forecast for the Umpqua Basin including Roseburg:

Partly cloudy with areas of smoke tonight.

Mostly cloudy with areas of smoke and a slight (20%) chance of thunderstorms Wednesday, partly cloudy with a slight (20%) chance of thunderstorms Wednesday evening with areas of smoke at night.

Mostly cloudy with areas of AM smoke, partly cloudy with more smoke and a slight (20%) chance of thunderstorms Thursday afternoon and Thursday night.

Mostly cloudy with areas of smoke and a slight (20%) chance of thunderstorms Friday afternoon and Friday night.

lows 57-60 highs near 85.

Partly cloudy with areas of smoke and a slight (20%) chance of thunderstorms Saturday and  Saturday night.

Partly cloudy with a slight (20%) chance of thunderstorms Sunday, partly cloudy at night,  partly cloudy with a slight (20%) chance of thunderstorms Monday afternoon, mostly clear Monday night, then partly cloudy Tuesday.

highs 85-87 lows near 57. (seasonal averages high 86 low 56)

 

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy with areas of patchy inland smoke this evening, mostly cloudy with patchy coastal fog and areas of smoke late tonight and Wednesday AM, partly cloudy with areas of coastal fog and a slight (20%) chance of thunderstorms in the afternoon, mostly cloudy with a slight (20%) chance of evening thunderstorms and inland smoke. Mostly cloudy inland Thursday AM, partly cloudy with areas of inland smoke and a slight (20%) chance of thunderstorms Thursday afternoon and evening, mostly cloudy with areas of smoke late Thursday night. Mostly cloudy with areas of smoke and a slight (20%) chance of thunderstorms Friday and Friday night.

lows near 55 highs 62-64.

Mostly cloudy Saturday AM, partly cloudy in the afternoon and evening, mostly cloudy with a slight (20%) chance of thunderstorms late Saturday night, mostly cloudy Sunday through Monday, mostly clear at night, then partly cloudy Tuesday.

highs near 64 lows near 54. (seasonal averages high 65 low 53)

 

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Forecast for the Cascades of Lane County: Partly cloudy with patchy smoke and a slight (20%) chance of showers and thunderstorms late tonight.

A mix of clouds and sun with patchy smoke and a slight (20%) chance of AM thunderstorms Wednesday, partly cloudy with patchy smoke and a slight (20%) thunderstorms Wednesday night and Thursday AM, a (30%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon (0.10 in. of rain possible, more in storms) and evening with more smoke, then a slight (20%) chance of showers and thunderstorms with patchy smoke late Thursday night.

A mix of clouds and sun with more smoke and a (40%) chance of showers and thunderstorms Friday AM, patchy AM smoke with a (40%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon, partly cloudy with patchy smoke and a (30%) chance of evening showers and a slight (20%) chance of thunderstorms, then a good (50%) chance of showers and thunderstorms late Friday night.

snow level above 8,000 ft. tonight through Friday night.

lows 52-45 warming to 48 Friday night highs 72-65.

A mix of clouds and sun with a (40%) chance of showers and thunderstorms Saturday, partly cloudy with a (40%) chance of of showers and thunderstorms Saturday evening, then partly cloudy with a slight (20%) chance of showers and thunderstorms late Saturday night through Tuesday.

snow level above 8,000 ft. Saturday through Tuesday

highs 66-74 lows near 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 and Lane County news on-line at Eugene Daily News.com.

 

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