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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:

• A FREEZING FOG ADVISORY IS IN EFFECT UNTIL NOON MONDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY AND JACKSON COUNTY.
• 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 is falling apart as it slides through Oregon giving us showers. The snow is still present in the hills, but it is melting away slowly.

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Air Quality Index:

Eugene-Springfield: The Pollution Index is 41 in the Good category measuring Particulate Matter at Amazon Park, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Pollution Index is 53 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 fog this evening, areas of dense fog late tonight and Monday AM, mostly cloudy with areas of fog in the afternoon, patchy fog in the evening, patchy freezing fog late at night,
• Patchy AM fog with possible freezing fog, mostly cloudy Tuesday afternoon, mostly cloudy with patchy fog and a good (50%) chance of rain late Tuesday night,
• Cloudy with a good (50%) chance of AM rain, then rain likely (60%) Wednesday afternoon and Wednesday night.
• lows 33-28 warming to 33 Wednesday night highs 40-45.
• Mostly cloudy with a slight (20%) chance of showers Thursday (snow level 1,000 ft.), a slight (20%) chance of rain and snow  at night,
• Mostly cloudy with a (40%) chance of rain and snow Friday, cloudy with a good (50%) chance of rain Friday night and Saturday, a (30%) chance of rain Saturday night,
• Then cloudy with a (40%) chance of rain Sunday.
• highs 40-45 lows near 32-36. (seasonal averages high 45 low 34).

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

• Becoming mostly cloudy with patchy coastal fog tonight and patchy fog inland late tonight,
• Mostly cloudy with patchy AM fog, partly cloudy Monday afternoon and Monday night with patchy coastal fog late at night,
• Patchy AM coastal fog, partly cloudy Tuesday, mostly cloudy with a slight (20%) chance of rain late Tuesday night,
• Mostly cloudy with rain likely (70%) Wednesday, showers likely (60%) in the evening, rain and snow showers and colder late Wednesday night,
• lows 37-43 cooling to near 40 Wednesday night highs 53-48.
• Mostly cloudy with a slight (20%) chance of rain and snow showers Thursday AM, and at night,
• Mostly cloudy with a (40%) chance of rain and snow showers Friday AM, a (40%) chance of showers in the afternoon, mostly cloudy with a (40%) chance of rain Friday night and Saturday, then mostly cloudy with a slight (20%) chance of rain Saturday night and Sunday.
• highs 48-54 lows 38-42. (seasonal averages high 51 low 39)

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Forecast for the Cascades of Lane County:

• Mostly cloudy this evening, partly cloudy with areas of fog late tonight,
• Areas of AM fog, partly cloudy Monday afternoon through Tuesday, mostly cloudy with a slight (20%) chance of rain in the evening, mostly cloudy with a (30%) chance of rain late Tuesday night,
• Mostly cloudy with rain and snow likely (60%) Wednesday, then snow likely (60%) Wednesday night.
• free air freezing level 10,000 ft. tonight through Tuesday,  snow level 8,000 ft. Tuesday night, 5,500 ft. Wednesday, then at the surface Wednesday night.
• lows 32-35 cooling to 18 Wednesday night highs 50-37.
• Mostly cloudy with a slight (20%) chance of snow showers Thursday, a slight (20%) chance of snow at night,
• Mostly cloudy with a (40%) chance of snow Friday, cloudy with a good (50%) chance of rain and snow Friday night,
• Cloudy with a (40%) chance  of rain and snow Saturday and Saturday night,
• Then cloudy with a (30%) chance of rain Sunday.
• snow level at the surface Thursday through Friday, 4,500 ft. at night, 6,000 ft. Saturday and Saturday night, then 7,000 ft. Sunday.
• highs 37-27 warming to 35 Saturday lows 22-19 warming to 22 Friday night.