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 more frontal systems heading our way. 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 3 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 6 in the Good 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 WINTER WEATHER ADVISORY IS IN EFFECT FROM 5 AM UNTIL 4 PM FRIDAY FOR THE  WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• A HIGH SURF ADVISORY IS IN EFFECT UNTIL 4 PM FRIDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A HIGH WIND WATCH IS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY AFTERNOON FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN AND WESTERN LAKE COUNTY,
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 PM FRIDAY FOR THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, CENTRAL AND EASTERN LAKE COUNTY.
• A WIND ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 PM FRIDAY FOR CENTRAL AND EASTERN LAKE COUNTY.
• A HIGH WIND WATCH IS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY AFTERNOON FOR CENTRAL AND EASTERN LAKE COUNTY.
• A FLOOD WARNING IS IN EFFECT 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 a slight (20%) chance of evening showers, becoming cloudy with rain likely (70%) late tonight (0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers likely (70%) and a bit cooler Friday afternoon ( 0.10 in. of rain possible), cloudy with a good (50%) chance of showers and a bit cooler at night ( 0.10 in. of rain possible),
• Showers and a bit cooler Saturday, evening showers likely (70%), rain late Saturday night,
• Rain and a bit cooler Sunday, then showers likely (70%) Sunday night.
• lows 38-34 highs 46-43.
• Mostly cloudy and a bit warmer with showers likely (70%) Monday, cloudy with a (40%) chance of showers Monday night,
• Partly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday, partly cloudy at night,
• Mostly sunny Wednesday, then partly cloudy Wednesday night and Thursday.
• highs 45-42 lows 29-32. (seasonal averages high 48 low 34)

 

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Forecast for Roseburg:

• Cloudy with a slight (20%) 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),
• AM rain and snow, rain and snow likely (70%) and a bit cooler Friday afternoon (0.10 in. of rain possible, snow level 2,000 ft. rising to 2,500 ft.), evening rain likely (70%), rain and snow showers likely (70%) late Friday night (0.10 in. of rain possible, snow level 3,500 ft. falling to 2,500 ft. late at night),
• Mostly cloudy with showers Saturday (snow level 3,000 ft.), rain Saturday night,
• Cloudy with rain and snow and a bit cooler Sunday, rain and snow showers likely (70%) in the evening, then a good (50%) chance of rain and snow showers late Sunday night.
• lows 39-35 highs near 48.
• Cloudy with AM rain and snow showers likely (70%), a good (50%) chance of rain and snow showers and a bit cooler Monday afternoon, a (40%) chance of rain and snow showers at night,
• Partly cloudy with a slight (20%) chance of rain and snow showers and a bit warmer Tuesday, just partly cloudy at night,
• Sunny with patchy fog and a bit warmer Wednesday, partly cloudy Wednesday night,
• Then  partly cloudy with patchy fog Thursday.
• highs 46-48 lows near 32. (seasonal averages high 50 low 37)

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

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

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with 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.),
• Mostly cloudy with AM snow, snow showers and a bit cooler Friday afternoon (0.10 in. of rain possible, 1-3 in. of snow possible), rain and snow showers likely (70%) Friday night (0.10 in. of rain possible, 2 in. of snow possible),
• Rain and snow showers and a bit cooler Saturday, evening rain and snow showers likely (70%), rain and snow late Saturday night,
• Rain and snow and a bit warmer Sunday,then snow showers likely (70%) Sunday night.
• snow level 3,000 ft. tonight, 2,500 ft. Friday, 3,000 ft. Friday night and Saturday, 3,500 ft. Saturday night, 3,000 ft. Sunday, then 2,500 ft. Sunday  night.
• lows 25-19 highs 32-30 warming back to 32 Sunday.
• Mostly cloudy and a bit cooler with snow showers likely (70%) Monday, cloudy with a good (50%) chance of rain and snow showers Monday night,
• A mix of clouds and sun with a slight (20%) chance of snow showers and a bit warmer Tuesday, partly cloudy at night,
• Mostly sunny and a bit warmer Wednesday and Thursday, partly cloudy Wednesday night.
• snow level at the surface Monday, 2,500 ft. Monday night, at the surface Tuesday, 4,000 ft. Tuesday night, 5,000 ft. Wednesday, then 5,500 ft. Wednesday night and Thursday.
• highs 29-35 lows near 16.

 

 

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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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