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Sorry no winner this week. Here is my new weekly weather quiz question for the last time. What is a “storm surge?” Here is the correct answer. A Storm Surge is an abnormal rise in sea level accompanying a hurricane or other intense storm, whose height is the difference between the observed level of the sea surface and the level that would have occurred in the absence of the cyclone. Storm surge is usually estimated by subtracting the normal or astronomic tide from the observed storm tide. I’ll have a new 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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Advisories:

• 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 for a while.  A weak frontal system will slide through giving us the chance of precipitation by tonight. 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 42 in the Good category measuring Particulate Matter at SHWY 99, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Pollution Index is 46 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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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 dense AM fog, sun breaks then mostly cloudy this afternoon, patchy fog with a slight (20%) chance of rain late tonight,
• Cloudy with areas of fog and a slight (20%) chance of rain Sunday, mostly cloudy with areas of fog at night,
• AM clouds and areas of fog, partly cloudyMonday, then partly cloudy with patchy fog Monday night.
• highs 43-46 lows 29-35 cooling to near 30 Monday night.
• AM clouds and patchy fog, partly cloudy Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
• Rain likely (60%) Wednesday, a good (50%) chance of rain 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:

• Mostly cloudy today with patchy fog this AM, patchy evening coastal fog, mostly cloudy with areas of fog late tonight,
• 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.
• highs 52-56 lows 37-40 cooling to 37 Monday night.
•  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 showers 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 today, and tonight with patchy fog late,
• Mostly cloudy with areas of fog and a slight (20%) chance of rain Sunday, partly cloudy Sunday with areas of fog at night, partly cloudy  through Monday night.
• free air freezing level 10,000 ft. today, 11,000 ft. tonight, snow level 10,000 ft. Sunday, free air freezing level 10,000 ft. Sunday night, then 11,000 ft. Monday and Monday night.
• highs 46-50 lows 35-32 warming to 36 Monday night .
• Partly cloudy Tuesday, cloudy Tuesday night,
• Rain and snow likely (60%) 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 11,000 ft. Tuesday, 8,000 ft. Tuesday night, snow level 5,500 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.