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Check out my latest Eugene Daily News Weather Or Not Column They Have Been Getting Harder To Find These Days.

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And don’t forget my latest feature story in the continuing series on service club organizations called This Moose Isn’t Named Bullwinkle.

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And my feature article about Contractors Electric called Is The Ground Wire The White One Or The Black One?

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Here is my weekly weather quiz question. What is a “theodolite?”  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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An upper level high pressure ridge (Shaded “Arch” shape with blue arrows) has been controlling weather allowing temperatures to rise to well above normal. The ridge is moving to the east away from us and low pressure is swinging in from the Northwest. That is increasing the westerly marine flow of air to cool us down quite a bit. A weak cold front will enhance the cooling trend today even though it falls apart. That’s great news for the NCAA Outdoor Track and Field Trials that run through Saturday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 23 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A HEAT ADVISORY IS IN EFFECT UNTIL 5 PM SATURDAY FOR CURRY COUNTY.
• A RED FLAG WARNING IS IN EFFECT UNTIL 1 PM SATURDAY FOR DOUGLAS, JOSEPHINE, CURRY, COOS AND JACKSON COUNTIES. LOW HUMIDITIES AND GUSTY WINDS WILL CREATE ERRATIC FIRE BEHAVIOR AND THE POTENTIAL FOR RAPID FIRE GROWTH.
• A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM THIS EVENING  FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE LOWER COLUMBIA BASIN OF OREGON, THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, FOR THE DESCHUTES NATIONAL FOREST, MINUS SISTERS RANGER DISTRICT AND THE CENTRAL MOUNTAINS OF OREGON FOR GUSTY WINDS AND LOW HUMIDITY.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny today, mostly clear tonight,
• Partly cloudy in the AM, mostly sunny Saturday afternoon, mostly clear Saturday night,
• AM clouds, sunny and warmer Sunday afternoon, partly cloudy at night.
• highs 76-82 lows 44-50.
• Partly cloudy in the AM, mostly sunny Monday afternoon,  Monday night,
• Mostly sunny and cooler Tuesday, then partly cloudy Tuesday night through Thursday.
• highs 82-74 lows near 50-47. (seasonal averages high 72 low 47)

Eugene/Springfield Pollen Count:

Trees: Low- 8

Grass: Very High- 299

Reading as of: 6/11/15

Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Basin including Roseburg:

• Sunny today, Saturday, and Sunday, clear tonight and Saturday night, then partly cloudy Sunday night.
• highs 82-85 cooling back to 82 Sunday lows 50-54.
• Partly cloudy Monday through Wednesday, mostly clear at night,
• Then mostly sunny Thursday.
• highs 82-79 lows near 52. (seasonal averages high 75 low 51)
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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Partly cloudy this AM, sunny this afternoon and breezy (Wind: N 10-20 mph gusts to 40 mph increasing to 20-25 mph gusts to 40 mph this afternoon), mostly clear tonight and windy (Wind: N 25-30 mph decreasing to N 10-15 mph this afternoon at the shore while N 10-20 mph decreasing to N 5-10 mph late tonight),
• Partly cloudy Saturday AM, sunny in the afternoon, mostly clear in the evening, then partly cloudy late Saturday night and Sunday AM, sunny in the afternoon, then partly cloudy Sunday night.
• highs near 60 lows near 50.
• Partly cloudy Monday through Tuesday night,
• Mostly cloudy Wednesday AM, then partly cloudy in the afternoon through Thursday.
• highs near 60 lows near 50. (seasonal averages high 61 low 50)

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Forecast for the Cascades in Lane County:

• Mostly sunny today, Saturday and Sunday (warmer), clear tonight and Saturday night, partly cloudy Sunday night.
• free air freezing level 13,000 ft. falling to 11,000 ft. this afternoon, 11,000 ft. falling to 11,000 ft. late tonight, 10,000 ft. Saturday, and Saturday night, 10,000 ft. rising to 11,000 ft. Sunday, then 11,000 ft. rising to 12,000 ft. Sunday night.
• highs 67-74 lows 39-42.
• Partly cloudy and cooler Monday through Tuesday AM, mostly sunny in the afternoon, partly cloudy Tuesday night through Thursday AM, then mostly sunny in the afternoon.
• free air freezing level 12,000 ft. Monday through Tuesday night, 12,000 ft. falling to 11,000 ft. Wednesday, 11,000 ft. falling to 10,000 ft. late Wednesday night, then 10,000 ft. falling to 9,000 ft. Thursday.
• highs 68-62 lows 42-39.

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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 eugenedailynews.com.

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