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Tim Chuey Weather

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Here is my weekly weather quiz question. What is an “occluded front?” 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: NONE AT THIS TIME.

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This week is “Lightning Safety Awareness Week” and the National Weather Service has a special web page just full of things you should know about lightning.

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An upper level low (“U” shape on brown line) has moved eastward away from us. It was followed by high pressure that cleared us out and warmed us up. Another trough of low pressure (“U” shape on brown line) has set up along the Pacific Coast returning the slight chance of showers for tonight through Friday night and increasing the chance for Saturday. A frontal system is poised to enhance the chance of showers as it moves closer, but it won’t move in until Saturday when the chance for showers increases. The pollen count will stay high enough (moderate levels), with showers stopping and starting, to bother those athletes who are allergic when it is dry. At least we don’t have smoke from wildfires or grass field burning as we did during the previous Olympic Trials held here.
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The pollen count for the Eugene-Springfield area is:
Grass- Moderate (19)
Trees- Moderate (24)
Data from Oregon Allergy Associates www.oregonallergyassociates.com.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy a slight (20%) chance of rain tonight and Friday AM, mostly cloudy Friday afternoon, a slight (20%) chance of rain Friday night, mostly cloudy with a good (50%) chance of rain Saturday (0.15 in. of rain possible), a good (50%) chance of showers Saturday night (0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers Sunday AM, a slight (20%) chance of showers in the afternoon, then partly cloudy with a slight (20%) chance of showers Sunday evening and partly cloudy Sunday night lows 57-50 highs 75-70 warming 75 Sunday. Partly cloudy & pleasant Monday through Wednesday (July 4th) and continuing through Thursday highs 76-73 warming to 76 by Thursday lows near 50. (seasonal averages high 77 low 49)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (30%) chance of showers tonight, a slight (20%) chance of showers Friday and Friday night, mostly cloudy with a good (50%) chance of showers Saturday AM, showers likely (60%) Saturday afternoon, (under 0.10 in. of rain possible), showers likely (60%) Saturday night, mostly cloudy with a (40%) chance of showers Sunday, then partly cloudy Sunday night lows 56-60 highs 77-82 cooling to 74 Saturday lows 56-62 cooling to 54 Sunday night highs 83-72 warming to 75 Sunday. Partly cloudy Monday through Wednesday (July 4th), then partly cloudy Wednesday night and Thursday highs 83-73 warming to 78 Wednesday and Thursday lows 56-50. (seasonal averages high 80 low 54)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with coastal showers likely (60%) this evening and a (30%) chance of showers late tonight with a (40%) chance of inland showers tonight, mostly cloudy with a (30%) chance of showers Friday, a (40%) chance of showers Friday night (under 0.10 in. of rain possible), cloudy with a good (50%) chance of showers Saturday AM, coastal showers likely (60%) in the afternoon with inland showers also in the afternoon, (0.10 in. of rain possible), showers likely (60%) Saturday night (0.10 in. of rain possible), mostly cloudy with a (40%) chance of showers Sunday, then just partly cloudy Sunday night lows 52-56 cooling to near 50 Sunday night highs 66-60. Partly cloudy Monday through Wednesday (July 4th), then partly cloudy Wednesday night and Thursday highs near 64 Wednesday lows near 50. (seasonal averages high 63 low 52).

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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of rain tonight, a mix of clouds and sun with a slight (20%) chance of rain Friday afternoon, mostly cloudy with a slight (20%) chance of rain Friday night, mostly cloudy with a (40%) chance of rain Saturday AM, showers likely (60%) with a slight (20%) chance of thunderstorms in the afternoon and evening, then showers likely (60%) late Saturday night, mostly cloudy with a good (50%) chance of showers Sunday, then partly cloudy with a slight (20%) chance of showers Sunday evening snow level above 8,000 ft. tonight through Sunday night lows 43-47 cooling to near 40 Saturday night and warming to 45 Sunday night highs 65-60.  Partly cloudy late Monday and Monday night, mostly sunny Tuesday AM, partly cloudy Tuesday afternoon through Wednesday afternoon (July 4th), partly cloudy with a  slight (20%) chance of showers late Wednesday night, then just partly cloudy Thursday free air freezing level 11,000 ft. rising to 14,000 ft. Monday afternoon through Tuesday, 14,000 ft. falling to 11,000 ft. late Tuesday night, 11,000 ft. rising to 12,000 ft. Wednesday afternoon and evening, snow level above 8,000 ft. late Wednesday night, then free air freezing level 11,000 ft. Thursday  highs 66-62 warming to near 67 Thursday lows near 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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Get your local Eugene-Springfield news on-line at Eugene Daily News.com

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