Check out my latest Eugene Daily News Weather Or Not column It May Seem Too Early, But It Really Isn’t.
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Here is my weekly weather quiz question for the last time. What are “Chlorofluorocarbons?” Here is the correct answer. Chlorofluorocarbons(CFCs) Are Manufactured substances used as coolants and computer-chip cleaners. When these products break down they destroy stratospheric ozone, creating the Antarctic Ozone Hole in the Southern Hemisphere spring (Northern Hemisphere autumn). While no longer in use, their long lifetime will lead to a very slow removal from the atmosphere. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) has taken over continuing the active weather pattern. Another trough will follow closely behind this one. The graphics for days 1-3 show the complex frontal system approaching today and moving in overnight and Monday. The graphics for days 3-7 show the parade of complex frontal systems that are headed our way Thursday through next Monday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 4 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A HIGH WIND WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 6 PM MONDAY FOR THE NORTH OREGON COAST.
- A HIGH SURF ADVISORY IS IN EFFECT FROM 9 AM UNTIL 5 PM MONDAY FOR THE NORTH OREGON COAST.
- A HIGH WIND WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 4 PM MONDAY FOR THE CENTRAL OREGON COAST.
- A HIGH WIND WARNING IS IN EFFECT FROM 6 AM THROUGH 7 PM MONDAY FOR THE COAST RANGE OF NORTHWEST OREGON.
- A WIND ADVISORY IS IN EFFECT FROM 7 AM UNTIL 7 PM MONDAY FOR THE LOWER COLUMBIA, THE CENTRAL WILLAMETTE VALLEY, AND THE SOUTH WILLAMETTE VALLEY.
- A HIGH WIND WARNING IS IN EFFECT FROM 1 AM THROUGH 4 PM MONDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
- A Health Advisory remains in effect for the Link and Klamath from Keno Dam to J.C. Boyle Dam (downstream from Keno Dam). Water monitoring has confirmed the presence of blue-green algae and the toxins they produce. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area.
- A Health Advisory remains in effect for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
- A Health Advisory HAS BEEN LIFTED for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the toxin levels have dissipated and are safe for humans.The authorities warn that the water still is not safe for animals, such as dogs, and they should not be allowed to have contact with the water.
- A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
- A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
- A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.
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Your College Football Forecast:
November 18th:
Ducks vs Arizona, at Autzen Stadium – Kickoff: Time Yet To Be Determined – Too soon for a preliminary weather forecast.
November 18th:
Beavers vs Arizona State, at Reser Stadium – Kickoff: 12:00 PM – Too soon for a preliminary weather forecast.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with rain tonight (0.50 in. of rain possible),
- Rain and cooler Monday (0.25 in. of rain possible) and windy (Wind: SW 15-30 mph gusts 35 mph to 45 mph in the afternoon and evening), cloudy with a good (50%) chance of showers Monday night (0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of showers and a bit warmer Tuesday, cloudy with a good (50%) chance of evening rain, rain likely (70%) late Tuesday night,
- Rain and a bit cooler Wednesday, then showers at night.
- lows 48-42 highs 55-49.
- Mostly cloudy with showers likely (70%) and a bit cooler Thursday and Thursday night,
- A bit warmer with a good (50%) chance of showers Friday, mostly cloudy with a good (50%) chance of rain Friday night and Saturday (a bit cooler), then rain likely (70%) and a bit warmer Saturday night and Sunday.
- highs 47-50 cooling to 48 Saturday warming to 52 Sunday lows 39-42. (seasonal averages high 53 low 38)
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Forecast for Roseburg:
- Cloudy with a good (50%) chance of evening showers, rain late tonight (0.25 in. of rain possible) and Monday AM, rain likely (70%) and cooler Monday afternoon (0.25 in. of rain possible), a good (50%) chance of showers at night (under 0.10 in. of rain possible),
- Mostly cloudy with a (30%) chance of showers Tuesday, a (40%) chance of rain Tuesday night,
- Rain and a bit cooler Wednesday, then showers Wednesday night.
- lows 46-42 highs 55-52.
- Mostly cloudy with showers and a bit cooler Thursday, cloudy with a good (50%) chance of showers at night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday, a slight (20%) chance of rain Friday night,
- Mostly cloudy and a bit warmer with a good (50%) of rain Saturday, rain likely (70%) at night,
- Then mostly cloudy with a (40%) chance of rain and a bit warmer Sunday.
- highs 50-56 lows 42-44. (seasonal averages high 54 low 41)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with a good (50%) chance of showers this evening, rain late tonight (0.25 in. of rain possible), windy (Wind: S 15-25 mph increasing to S 25-35 mph at the shore late this evening and tonight while S 15-25 mph inland tonight),
- Mostly cloudy with AM coastal rain likely (70%) and rain and cooler Monday afternoon while inland rain likely (70%) in the afternoon, and windy (Wind: SW 20-30 mph gusts to 45 mph), evening showers likely (70%), a good (50%) chance of showers late at night (0.25 in. of rain possible), breezy (Wind: S 15-25 mph gusts to 40 mph decreasing to S 10-15 mph late at night),
- A (40%) chance of showers Tuesday and breezy (Wind: S 10-15 mph increasing to S 15-25 mph gusts to 45 mph in the afternoon), evening coastal rain likely (70%) with rain late at night while good (50%) chance of evening inland rain and rain likely (70%) Tuesday night, windy (Wind: S 25-35 mph at the shore while S 15-20 mph inland),
- Mostly cloudy and a bit cooler with rain Wednesday, then showers Wednesday night.
- lows 49-44 highs 55-53.
- Mostly cloudy with showers Thursday, cloudy with a good (50%) chance of showers at night,
- Mostly cloudy with a slight (20%) chance of showers and a bit warmer Friday, a slight (20%) chance of rain Friday night,
- Mostly cloudy with a good (50%) chance of rain Saturday, rain likely (70%) at night,
- Then cloudy and a bit warmer with rain likely (70%) Sunday.
- highs 52-57 lows 45-47. (seasonal averages high 55 Low 43)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with a good (50%) chance of rain tonight (0.25 in. of rain possible) and breezy (Wind: S 10-15 mph gusts to 30 mph increasing to S 15-25 mph gust to 45 mph late at night),
- AM rain, rain and snow showers and a bit cooler Monday afternoon (0.50 in. of rain possible, 2 in. of snow possible) and windy (Wind: SW 20-30 mph gusts to 45 mph), evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late Monday night (0.10 in. of rain possible. 1 in. of snow possible),
- A mix of clouds and sun with a slight (20%) chance of rain and snow showers Tuesday, breezy (Wind: S 15-25 gusts to 35 mph in the afternoon), mostly cloudy with a slight (20%) chance of rain and snow Tuesday night, breezy (Wind: S 15-25 gusts to 35 mph),
- Rain and snow Wednesday, then rain and snow showers at night.
- snow level 6,500 ft. tonight, 6,000 ft. falling to 4,500 ft. Monday afternoon, 3,500 ft. Monday night, 3,000 ft. Tuesday, 4,000 ft. Tuesday night and Wednesday, then 3,000 ft. Wednesday night.
- lows 34-25 highs near 36.
- Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Thursday and Thursday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Friday, cloudy with a (30%) chance of rain and snow at night,
- Mostly cloudy and a bit warmer with a (40%) chance of rain and snow Saturday, then rain likely (70%) and a bit warmer Saturday night and Sunday.
- snow level 3,000 ft. Thursday, 2,500 ft. Thursday night and Friday, 3,000 ft. Friday night, 4,000 ft. Saturday then 6,500 ft. Saturday night and Sunday.
- highs 32-39 lows 26-32.
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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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