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Here is my new weekly weather quiz question. What is a “storm surge?” 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:

• A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM SATURDAY FOR THE SOUTH WILLAMETTE VALLEY.
• AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 AM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
• A Blue-Green Algae warning  has been cancelled for Tenmile Lakes in Coos County, but continues for Fern Ridge Reservoir, Lost Creek Lake, and Willow Creek Reservoir (NE Oregon). Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.

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The upper airflow has become a ridge of high pressure that will keep us mild and relatively dry for a while.  A weak frontal system will slide through giving us the chance of precipitation. Isn’t it nice to drive around town without slipping and sliding?

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Air Quality Index:

Eugene-Springfield: The Pollution Index is 44 in the Good category measuring Particulate Matter at Springfield City Hall. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Pollution Index is 60 in the Moderate category measuring Particulate Matter at Willamette Activity Center, Oakridge.  Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

Eugene/Springfield: (YELLOW) Burning Cautioned Against.

Oakridge: (YELLOW) Burning Cautioned Against.

Pellet stoves are always allowed.

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

• Mostly cloudy with areas of late night and early AM fog tonight through Saturday night,
• Mostly cloudy with a slight (20%) chance of rain Sunday, mostly cloudy with patchy fog at night,
• A mix of clouds and sun after patchy AM fog Monday, then partly cloudy with patchy fog Monday night.
• lows 30-35 cooling to near 30 Monday night highs 43-46.
• Partly cloudy Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
• A good (50%) chance of rain Wednesday and Wednesday night,
• Mostly cloudy with a (40%) chance of showers Thursday and Thursday night,
• Then mostly cloudy with a (30%) chance of rain Friday.
• highs 45-38 lows near 34. (seasonal averages high 45 low 34).

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

• Partly cloudy this evening, mostly cloudy with patchy fog late tonight and Saturday AM, partly cloudy in the afternoon and evening, mostly cloudy with areas of fog late Saturday night,
• Areas of AM fog, mostly cloudy with a slight (20%) chance of coastal rain while a slight (20%) chance of inland rain Sunday afternoon, then partly cloudy Sunday night through Monday night.
• lows 37-40 cooling to 37 Monday night highs 52-56.
•  Partly cloudy Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
• Mostly cloudy with a good (50%) chance of rain Wednesday, showers likely (60%) Wednesday night,
• mostly cloudy with a (40%) chance of showers Thursday and at night,
• Then mostly cloudy with a (40%) chance of rain Friday.
• highs 53-50 lows 42-36. (seasonal averages high 51 low 40)

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Forecast for the Cascades of Lane County:

• Mostly cloudy this evening, partly cloudy late tonight,
• A mix of clouds and sun Saturday, partly cloudy in the evening, mostly cloudy late at night,
• A mix of clouds and sun Sunday,  partly cloudy Sunday night through Monday night.
• free air freezing level 6,500 ft. falling to 6,000 ft. tonight, 6,000 ft. rising to 7,000 ft. Saturday, 7,000 ft. Saturday night, 8,000 ft. Sunday and Sunday night, 8,000 ft. Monday, then 10,000 ft. Monday night.
• lows 28-35 cooling to near 32 Sunday night warming to 36 Monday night highs 46-50.
• Partly cloudy Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
• A good (50%) chance of rain and snow Wednesday, rain and snow showers at night,
• Then mostly cloudy with a good (50%) chance of rain and snow showers Thursday, a good (50%) chance of snow showers at night,
• Then mostly cloudy with a (30%) chance of snow Friday.
• free air freezing level 9,000 ft. Tuesday, snow level 7,000 ft. Tuesday night, 5,000 ft. Wednesday, 3,000 ft. Wednesday night, 2,500 ft. Thursday, then at the surface Thursday night and Friday.
• highs 45-27 lows 35-22.