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Check out my latest Eugene Daily News Weather Or Not Column A Perfect Day In Every Way.

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And don’t forget my latest feature story in the continuing series on service club organizations called Who Are The Soroptimists And What Are They Doing?

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Sorry, no winner this week. Here is my weekly weather quiz question for the last time. What is a “macroburst?”  Here is the correct answer. A Macroburst is a convective downdraft with an affected outflow area of at least 2½ miles wide and peak winds lasting between 5 and 20 minutes. Intense macrobursts may cause tornado-force damage of up to F3 intensity.  I’ll have another 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.

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An upper level trough of low pressure sitting off the coast of California (“U”or “O”  shape with blue arrows)  will move to the north and east  increasing the chances for another round of mountain showers and thunderstorms. It will be quite a bit cooler today. Keep your eyes on the full “buck” moon as the moon will appear to be much larger than normal when it first rises above the horizon.

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Advisories:

• A HEAT ADVISORY IS IN EFFECT FROM 11 AM MONDAY UNTIL 11 PM TUESDAY FOR UNTIL 10 PM TUESDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE NORTHERN OREGON CASCADES, THE CASCADES IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.
• A HEAT ADVISORY IS IN EFFECT UNTIL 10 PM WEDNESDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA RIVER BASIN OF OREGON, AND THE FOOTHILLS OF THE NORTHER BLUE MOUNTAINS OF OREGON.
• A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING FROM 11 AM UNTIL 11 PM TODAY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST (MINUS THE SISTERS RANGE DISTRICT), AND THE CENTRAL MOUNTAINS OF OREGON.
• A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING FROM 11 AM UNTIL 8 PM TODAY FOR THE UMPQUA NATIONAL FOREST, SOUTHERN OREGON CASCADES, THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST, SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING FROM 2 PM TODAY UNTIL 5 AM MONDAY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter at Springfield City Hall. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 28 in the Good category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Eugene-Springfield Pollen Count:

Grass……….High (34)

Trees……….Low (12)

Last Counted: 7/11/14

Data Courtesy of Oregon Allergy Associates.

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

• Cloudy with a slight (20%) chance of showers and thunderstorms this AM,  a mix of clouds and sun with a (30%) chance of showers and thunderstorms this afternoon (under 0.10 in. of rain possible, more in storms, gusty winds), partly cloudy with a (30%) chance of  showers and thunderstorms in the evening (under 0.10 in. of rain possible, more in storms, gusty winds possible), mostly cloudy late tonight,
• Mostly cloudy Monday AM, mostly sunny and warmer in the afternoon, mostly clear Monday night,
• Sunny Tuesday, then mostly clear at night.
• highs 83-96 lows 58-60.
• Then mostly sunny Wednesday, Thursday, Friday, and Saturday mostly clear each night.
• highs 92-86 warming to near 90 Saturday lows 58-56. (seasonal averages high 82 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy today with a slight (20%) chance of isolated, thunderstorms through this evening, just mostly cloudy late tonight,
• Mostly cloudy in the AM, sunny Monday afternoon, mostly clear at night,
• Sunny Tuesday, then mostly clear at night.
• highs 82-102 lows 60-64.
• Mostly sunny Wednesday, Thursday, Friday, and Saturday, mostly clear each night,
• highs 95-89 warming to 93 Saturday lows near 58. (seasonal averages high 84 low 56)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Cloudy with patchy AM coastal fog, cloudy with a slight (20%) chance of thunderstorms this afternoon, just cloudy tonight,
• Cloudy Monday AM, partly cloudy in the afternoon, while mostly clear inland Monday night,
• Then sunny Tuesday, mostly clear at night.
• highs 60-67 lows near 55.
• Partly cloudy Wednesday and Thursday, mostly clear at night,
• Mostly sunny Friday, mostly cloudy at night,
• Then partly cloudy Saturday AM, then sunny and warmer Saturday afternoon.
• highs 63-65 lows 54-58. (seasonal averages high 65 low 53).

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Forecast for the Cascades in Lane County:

• A mix of clouds and sun with a slight (20%) chance of AM showers and thunderstorms, a good (50%) chance afternoon and evening showers and thunderstorms (0.10 in. of rain possible, more in storms, gusty winds possible, small hail possible), mostly cloudy with a slight (20%) chance of showers late tonight (gusty winds and small hail possible in storms),
• Mostly cloudy in the AM, partly cloudy and warmer Monday afternoon and evening, clear at night,
• Sunny Tuesday, then clear at night.
• snow level above 8,000 ft. today and tonight, free air freezing level 16,000 ft Monday through Tuesday night.
• highs 77-86 lows 50-60.
• Mostly sunny Wednesday, Thursday, Friday and Saturday, mostly clear each night,
• free air freezing level 16,000 ft. Wednesday through Saturday.
• highs 83-75 lows 53-50.

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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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