Here is my weekly weather quiz question for the last time. What is “Agglomerate?” Here is the correct answer.  Agglomerate is an ice cover of floe formed by the freezing together of various forms of ice. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

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An Upper Air Low Pressure Trough (Shaded “U” shape with blue arrows) pushed another frontal system shown on the days 1-3 graphic into the Pacific Northwest. The graphic for days 3-7 shows more frontal systems heading our way that will try to break through blocking surface high pressure. For mountain snow conditions at the local ski areas check out their websites or give them a call.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Advisories:

• A HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• 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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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A slight (20%) chance of showers and decreasing this afternoon while sunshine increases and a bit cooler, mostly cloudy this evening, partly cloudy this evening, mostly cloudy with patchy fog late tonight,
• Patchy AM fog, a mix of clouds and sun and a bit cooler Tuesday, partly cloudy with patchy fog late at night,
• Mostly cloudy with patchy AM fog, mostly cloudy and a bit warmer Wednesday afternoon, then cloudy with a (30%)  chance of rain Wednesday night.
• highs 47-44 warming back to 47 Wednesday lows 28-32.
• Mostly cloudy with a (30%) chance of AM showers, a mix of clouds and sun and a bit warmer Thursday afternoon, partly cloudy with patchy fog late at night and Friday AM, mostly sunny Friday afternoon, partly cloudy Friday night through Saturday night,
• Then mostly cloudy Sunday.
• highs 46-50 cooling back to 46 Saturday lows near 32. (seasonal averages high 48 low 35)

 

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Forecast for Roseburg:

• Mostly cloudy with a (30%) chance of rain and snow showers and a bit cooler today (under 0.10 in. of rain possible, snow level 1,500 ft. rising to 2,500 ft. this afternoon), a slight (20%) chance of evening rain and snow showers, partly cloudy and colder with patchy freezing fog late tonight (evening snow level 3,000 ft.),
• Patchy AM freezing fog, sunny and a bit cooler Tuesday afternoon, clear in the evening, partly cloudy late at night,
• Mostly cloudy with patchy fog and a bit warmer with a slight (20%) chance of rain and snow showers Wednesday afternoon, then cloudy with a (30%) chance of rain and snow showers Wednesday night.
• highs near 47 lows 30-35.
• Mostly cloudy with patchy fog and a slight (20%) chance of rain and snow showers and a bit warmer Thursday, mostly cloudy in the evening, partly cloudy Thursday night,
• Mostly sunny Friday, mostly clear at night,
• Then partly cloudy Saturday through Sunday.
• highs 48-52 lows near 35. (seasonal averages high 51 low 37)

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

• Mostly cloudy with a (30%) chance of coastal showers while a (30%) chance of rain and snow showers inland and a bit warmer this afternoon (0.10 in. of rain possible, AM snow level 2,000 ft), a (30%) chance of evening showers (under 0.10 in. of rain possible), patchy coastal fog tonight while patchy fog and freezing fog late tonight,
• Sunny with patchy AM coastal fog while patchy AM fog and freezing fog inland, sunny Tuesday afternoon, mostly clear in the evening, partly cloudy late at night,
• Mostly cloudy with a slight (20%) chance of showers Wednesday afternoon, mostly cloudy with a (30%) chance of rain Wednesday night.
• highs near 52 lows 35-39.
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Thursday, mostly cloudy in the evening,  partly cloudy Thursday night,
• Mostly sunny Friday, mostly clear at night,
• Partly cloudy Saturday and Saturday night,
• Mostly cloudy Sunday AM, then partly cloudy Sunday afternoon.
• highs 53-57 lows 39-37. (seasonal averages high 52 low 40)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with a (40%) chance snow showers this afternoon, partly cloudy with a slight (20%) chance of evening snow showers, just mostly cloudy late tonight,
• Mostly sunny and a bit cooler Tuesday afternoon, partly cloudy Tuesday night,
• A mix of clouds and sun in the AM, becoming mostly cloudy and a bit warmer Wednesday afternoon, then cloudy with a (40%) chance of snow Wednesday night.
• snow level at the surface today, 2,500 ft. tonight, free air freezing level 3,500 ft. Tuesday afternoon, 3,000 ft. Tuesday night, 3,000 ft. Wednesday, then snow level 2,500 ft. Wednesday night.
• highs 32-29 warming back to 32 Wednesday lows 16-14.
• Mostly cloudy with a (40%) chance of snow showers Thursday, partly cloudy at night,
• Mostly sunny and a bit warmer Friday, then partly cloudy and a bit warmer Friday night through Sunday.
• snow level 2,500 ft. Thursday, free air freezing level 4,500 ft. Thursday night, 4,000 ft. Friday, 6,500 ft. Friday night, 6,000 ft. Saturday, then 7,500 ft. Saturday night and Sunday.
• highs 32-38 lows 20-25.

 

 

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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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