Here is my weekly weather quiz question. What is “Agglomerate?” 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) is pushing another frontal system shown on the days 1-3 graphic into the Pacific Northwest. The graphic for days 3-7 shows another frontal system heading our way Sunday, then a break. 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 20 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 68 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 51 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 FREEZING RAIN ADVISORY IS IN EFFECT UNTIL 6 PM TODAY BELOW 3,000 FT. FOR THE  CENTRAL COLUMBIA RIVER GORGE AND THE UPPER HOOD RIVER VALLEY.
• A HIGH SURF ADVISORY IS IN EFFECT FROM 4 PM THIS AFTERNOON UNTIL 4 PM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WARNING IS IN EFFECT FROM THROUGH THIS EVENING FOR THE LUCKIAMUTE RIVER NEAR SUVER.
• 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:

• Mostly cloudy with sun breaks and a good (50%) chance of showers and a bit cooler this afternoon (under 0.10 in. of rain possible), cloudy with a slight (20%) chance of evening showers, rain likely (70%) late tonight (0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers likely (70%)  and a bit cooler Friday ( 0.10 in. of rain possible), cloudy with a good (50%) chance of showers and a bit cooler Friday night ( 0.10 in. of rain possible),
• Showers Saturday, evening showers like;y (70%), then rain late Saturday night.
• highs 48-45 lows 38-35.
• Rain and a bit cooler Sunday, showers likely (70%) at night and Monday, cloudy with a good (50%) chance of showers Monday night,
• Mostly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday, mostly cloudy at night,
• Then just partly cloudy Wednesday.
• highs 44-40 lows 34-27. (seasonal averages high 48 low 34)

 

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Forecast for Roseburg:

• Cloudy with a (30%) chance of rain and showers and a bit cooler this afternoon (0.25 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft. this afternoon), a good (50%) chance of evening showers, rain and snow late tonight (0.10 in. of rain possible, 1 in. of snow possible, snow level 3,000 ft. falling to 2,500 ft. late),
• Cloudy with AM rain and snow, a (40%) chance of rain and snow and a bit cooler Friday afternoon (0.10 in. of rain possible, snow level 2,000 ft. rising to 2,500 ft.), a (40%) chance of evening showers, rain and snow showers likely (70%) late Friday night (0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. late at night),
• Then showers likely (70%) Saturday (snow level 3,000 ft.), rain Saturday night.
• highs 52-48 lows near 38.
• Cloudy with rain and a bit cooler Sunday, rain and snow showers likely (70%) Sunday night,
• Cloudy with a good (50%) chance of rain and snow showers and a bit cooler Monday, rain and snow showers likely (60%) at night,
• Cloudy with a (30%) chance of rain and snow showers and a bit warmer Tuesday, partly cloudy Tuesday night,
• Then sunny and a bit warmer Wednesday.
• highs near 47 lows 35-30. (seasonal averages high 50 low 37)

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

• Mostly cloudy and a bit cooler with coastal showers likely (70%) this afternoon while a good (50%) chance of inland showers and a bit cooler (0.25 in. of rain possible), evening showers likely (70%), rain late tonight (0.25 in. of rain possible),
• Mostly cloudy with AM coastal rain and a slight (20%) chance of thunderstorms and afternoon and evening coastal rain likely (70%) with isolated thunderstorm while AM inland rain with a good (50%) chance of inland rain and a bit cooler Friday afternoon ( 0.25 in. of rain possible), then coastal showers late at night while a good (50%) chance of evening inland showers and inland showers likely (70%)  late Friday night ( 0.10 in. of rain possible).
• highs 54-50 lows near 43.
• Mostly cloudy with showers Saturday and in the evening, rain late at night,
• Mostly cloudy with rain and breezy and a bit cooler Sunday, showers likely (70%) Sunday night,
• Showers and a bit cooler Monday, a good (50%) chance of showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, then partly cloudy Tuesday night and Wednesday.
• highs 50-52 lows 42-37. (seasonal averages high 52 low 40)

 

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Forecast for the Cascades in Lane County:

• Cloudy with a (40%) chance of rain and snow showers and a bit cooler this afternoon (0.10 in. of rain possible, 1 in. of snow possible), a slight (20%) chance of evening rain and snow showers, a good (50%) chance of rain and snow late tonight (0.10 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with AM snow, snow showers and a bit cooler Friday afternoon, rain and snow showers likely (70%) Friday night,
• Rain and snow showers Saturday, evening rain and snow showers likely (70%), then rain and snow late Saturday night.
• snow level 3,000 ft. today and tonight, 2,500 ft. Friday, 3,000 ft. Friday night and Saturday, then 3,500 ft. Saturday night.
• highs 33-30 lows near 25.
• Rain and snow and a bit warmer Sunday, snow showers likely (70%) Sunday night through Monday, rain and snow showers likely (70%) Monday night,
• Mostly cloudy with a (30%) chance of snow showers and a bit warmer Tuesday, then partly cloudy at night and Wednesday.
• snow level 3,000 ft. Sunday, 2,500 ft. Sunday night, at the surface Monday, 2,500 ft. Monday night, at the surface Tuesday, free air freezing level at the surface Tuesday night, then 5,000 ft. Wednesday.
• highs 32-29 warming to 35 Wednesday lows 22-17 warming to 20 Tuesday night.

 

 

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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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