Here is my weekly weather quiz question. What is a “Warm Occlusion?” 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. Good luck.

________________

 

An upper level high pressure ridge (Shaded “Arch” shape in blue arrows) is taking control of our weather. A weak frontal system  fell apart as it into the Pacific Northwest An upper level low (Shaded “U” shape in blue arrows in first graphic) will move in for the second half of the weekend. Another frontal system will move through the Pacific Northwest Saturday night and Sunday to cool us a bit for end of the weekend.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 in the Good category measuring Ozone.

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

________________

 

Advisories:

• A RED FLAG WARNING IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING FOR EAST WIND AND POOR OVERNIGHT RELATIVE HUMIDITY RECOVERY FOR FAR SOUTHERN COOS COUNTY, CURRY COUNTY, AND FAR WESTERN JOSEPHINE COUNTY INCLUDING THE WESTERN ROGUE RIVER AND THE SISKIYOU NATIONAL FOREST.
• A Health Advisory remains in effect for ocean water contact at Neskowin Beach located in Tillamook County due to higher than normal levels of fecal bacteria. Contact with the water can result in diarrhea, stomach cramps, skin rashes, upper respiratory infections and other illnesses.Direct contact with the water should be avoided in this area until the advisory is lifted, especially by children and the elderly who may be more vulnerable to waterborne bacteria. Visitors should avoid wading in nearby creeks, pools of water on the beach, or in discolored water, and stay clear of water runoff flowing into the ocean.
• A Health Advisory remains in effect for ocean water contact at Nye Beach located in Lincoln County due to higher than normal levels of fecal bacteria. Contact with the water can result in diarrhea, stomach cramps, skin rashes, upper respiratory infections and other illnesses.Direct contact with the water should be avoided in this area until the advisory is lifted, especially by children and the elderly who may be more vulnerable to waterborne bacteria. Visitors should avoid wading in nearby creeks, pools of water on the beach, or in discolored water, and stay clear of water runoff flowing into the ocean.
• A Blue-Green Algae Health Advisory remains in effect for Agency Lake. Agency Lake is located just north of Upper Klamath Lake near Klamath Falls along Highway 97 in Klamath County. Water monitoring on the lake has confirmed the presence of high levels of blue-green algae and associated toxins that can be harmful to people and animals. Swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing and power boating, should be avoided in areas where blooms are identified. Although toxins are not absorbed through the skin, contact with cells from a bloom can cause skin irritation and a red, puffy rash in individuals with skin sensitivities, or those who develop rashes easily.
• A Blue-Green Algae Health Advisory remains in effect for Howard Bay (sometimes called Howards Bay or Howard’s Bay) in Upper Klamath Lake ONLY. People should avoid swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing or power boating, in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sensitivities may experience a puffy, red rash at the affected area.

________________

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

• Mostly clear with patchy fog late tonight and Friday AM, mostly sunny and a bit warmer Friday afternoon and Saturday, clear Friday night, partly cloudy Saturday evening, mostly cloudy late at night,
• Mostly cloudy with a slight (20%) chance of light rain or drizzle Sunday AM, mostly sunny and a bit cooler in the afternoon, then partly cloudy with patchy fog Sunday night.
• lows 45-54 cooling to 45 Sunday night highs 84-86 cooling to 75 Sunday.
• Clouds and sun with patchy fog Monday AM, then sunny and a bit warmer Monday afternoon, Tuesday, sunny and a bit cooler Wednesday and Thursday, clear each night.
• highs 83-88 cooling to 85 Wednesday and Thursday lows 45-50. (seasonal averages high 79 low 48)

____

College Football Forecast:

Saturday September 10th- Ducks vs Virginia at Autzen Stadium Kickoff 7:30 PM – Partly cloudy near 80 degrees and cooling as the game progresses, increasing clouds toward games end, Wind N 5-15 mph possible gusts to 25 mph.

_____

Saturday September 10th- Beavers have a Bye week.

Next game– Saturday September 17th- Beavers vs Idaho State at Reser Stadium Kickoff Time?? Way too soon for an accurate forecast that far in the future.

________________

 

 

Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit warmer Friday and Saturday, clear Friday night, clear Saturday evening, partly cloudy with a slight (20%) chance of rain or drizzle late at night,
• Mostly cloudy with a slight (20%) chance of areas of drizzle Sunday AM, sunny but just a bit cooler in the afternoon, then clear at night.
• lows 50-56 highs 88-93 cooling to near 82 Sunday.
• Sunny and a bit warmer Monday and Tuesday, sunny and a bit cooler Wednesday, clear Monday night and Tuesday night, mostly clear Wednesday night,
• Then mostly sunny and a bit cooler Thursday.
• highs 85-90 cooling to 86 Wednesday and Thursday lows near 52. (seasonal averages high 81 low 53)

 

________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Clear tonight,
• Sunny and a bit  a bit cooler Friday and Saturday, clear Friday night, mostly clear in the evening and mostly cloudy Saturday night,
• Mostly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, then clear Sunday night.
• lows near 49-53 cooling to near 50 Sunday night highs 69-67.
• Mostly sunny and a bit warmer Monday, mostly clear Monday night,
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit cooler Wednesday, then partly cloudy with patchy fog late at night and Thursday.
• highs 70-73 cooling to 66 Wednesday and Thursday lows 53-49 warming to 52 Wednesday night. (seasonal averages high 65 low 51)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Sunny and a bit warmer Friday and Saturday, clear Friday night, mostly clear Saturday night,
• Partly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, then mostly clear Sunday night.
• free air freezing level 14,000 ft. tonight, 15,000 ft. Friday through Saturday night, 14,000 ft. Sunday, then 12,000 ft. Sunday night.
• lows 40-45 cooling to 38 Sunday night highs 69-76.
• Then sunny Monday and Tuesday, sunny and a bit cooler Wednesday and Thursday, clear each night.
• free air freezing level 10,000 ft. Monday, 11,000 ft. Monday night, 13,000 ft. Tuesday,  12,000 ft. Tuesday night and Wednesday, 13,000 ft. Wednesday night, then 14,000 ft. Thursday.
• highs 64-72 lows 39-44.

________________

**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 eugenedailynews.com.

_______________