Here is my new 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 Level High Pressure Ridge is keeping the precipitation away, but it’s allowing late night/Early AM freezing fog and still well below normal daytime high temperatures. The days 1-3 graphic shows the frontal system that will bring rainfall to the Pacific Northwest Tuesday and Wednesday. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) will help return the advance of frontal systems with precipitation. The graphic for days 3-7 shows more frontal systems heading our way Friday and Sunday into Monday of next week. 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 83 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 45 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 62 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: YELLOW – Caution is Advised.

Oakridge: YELLOW – Caution is Advised.

*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 WIND WARNING IS IN EFFECT FROM NOON TUESDAY UNTIL 10 AM WEDNESDAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A HIGH WIND WARNING IS IN EFFECT FROM NOON TUESDAY UNTIL 4 PM WEDNESDAY FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 2 AM UNTIL 2 PM TUESDAY FOR THE COAST RANGE OF NORTHWEST OREGON. THE LOWER COLUMBIA.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 2 AM UNTIL 2 PM TUESDAY BELOW 1,000 FT. FOR THE LOWER COLUMBIA.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 4 AM UNTIL 6 PM TUESDAY FOR THE GREATER PORTLAND METRO AREA.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 4 AM UNTIL 2 PM TUESDAY FOR THE CENTRAL WILLAMETTE VALLEY.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 AM TUESDAY FOR THE SOUTH WILLAMETTE VALLEY.
• AN ICE STORM WARNING IS IN EFFECT FROM 6 AM TUESDAY UNTIL 6 PM WEDNESDAY BELOW 2,500 FT. FOR THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• AN ICE STORM WARNING IS IN EFFECT FROM 6 AM UNTIL 6 PM TUESDAY BELOW 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE NORTHERN OREGON CASCADES.
• A FLOOD WATCH IS IN EFFECT FROM TUESDAY MORNING THROUGH LATE WEDNESDAY NIGHT FOR THE CENTRAL COLUMBIA RIVER GORGE, THE COAST RANGE OF NORTHWEST OREGON, THE GREATER PORTLAND METRO AREA, THE LOWER COLUMBIA, THE NORTH OREGON COAST, THE UPPER HOOD RIVER VALLEY, AND THE WESTERN COLUMBIA RIVER GORGE.
• A HIGH WIND WARNING IS IN EFFECT FROM 4 PM TUESDAY UNTIL 4 PM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WIND ADVISORY IS IN EFFECT 10 PM TUESDAY UNTIL 10 PM UNTIL 10 PM WEDNESDAY FOR JACKSON COUNTY.
• A WIND ADVISORY IS IN EFFECT 4 AM TUESDAY UNTIL 4 AM WEDNESDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM TUESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, JACKSON COUNTY,  AND THE KLAMATH BASIN.
• 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:

• Partly cloudy this evening, mostly cloudy late tonight,
• Cloudy with rain likely (70%) and a (40%) chance of AM freezing rain, rain likely (70%) and a bit warmer Tuesday afternoon (0.25 in. of rain possible), rain (0.50 in. of rain possible) and breezy Tuesday night (Wind: S 15-25 mph gusts to 35 mph and S 10-15 mph gusts to 25 mph late at night) and Wednesday (Wind: S 15-25 mph gusts to 35 mph in the AM), showers Wednesday night,
• Mostly cloudy with showers likely (70%) and a bit cooler Thursday, then rain likely (70%) Thursday night.
• lows 32-47 cooling to 35 Thursday night highs 47-50 cooling to 44 Thursday.
• Mostly cloudy with rain and a bit cooler Friday, showers likely (70%) and a bit cooler at night and Saturday, cloudy with a good (50%) chance of showers Saturday night,
• Rain likely (70%) Sunday, showers likely at night,
• Then cloudy with a good (50%) chance  of showers Monday.
• highs 42-38 lows 34-32. (seasonal averages high 47 low 34)

 

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Forecast for Roseburg:

• Partly cloudy this evening, mostly cloudy with patchy fog tonight and Tuesday AM, cloudy and a bit warmer with a (30%) chance of rain in the afternoon, rain Tuesday night through Wednesday evening, showers likely (70%) and colder late Wednesday night,
• Mostly cloudy with showers likely (70%) and a bit cooler Thursday, evening rain likely (70%), then rain late at night.
• lows 38-47 cooling to 36 Thursday night highs 54-44.
• Mostly cloudy with rain and a bit cooler Friday, rain and snow showers likely (70%) Friday night,
• Mostly cloudy with rain and snow showers Saturday, cloudy with a good (50%) chance of rain and snow showers Saturday night,
• Rain and snow and a bit cooler Sunday, rain and snow showers likely (70%) at night,
• Then cloudy with rain and snow showers likely (60%) Monday.
• highs near 42 lows near 34. (seasonal averages high 50 low 37)

 

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

• Mostly cloudy this evening, partly  cloudy late tonight,
• Cloudy and a bit cooler with a (40%) chance of AM coastal rain with coastal rain Tuesday afternoon while a (40%) chance of rain inland and windy (Wind: S 20-30 mph at the shore while S 10-20 mph inland), rain Tuesday night and windy (Wind: S 25-40 mph at the shore while S 15-25 mph inland),
• Mostly cloudy and a bit cooler with rain and very windy (Wind: S 25-40 mph at the shore while S 20-30 mph inland decreasing to S 15-20 mph inland in the afternoon) Wednesday, evening rain, showers and colder late Wednesday night,
• Mostly cloudy with AM showers, showers likely (70%) and a bit cooler Thursday, then rain at night.
• lows 44-52 cooling to 50 Thursday night highs 55-50.
• Mostly cloudy with rain Friday, showers Friday night through Saturday night,
• Mostly cloudy with rain and a bit cooler and breezy Sunday, then mostly cloudy with showers likely (70%) Sunday night and Monday.
• highs near 48 lows near 38. (seasonal averages high 52 low 40)

 

 

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Mostly cloudy and a bit warmer Tuesday with a good (50%) chance of rain and breezy (Wind: S 5-15 mph gusts to 30 mph increasing to S 15-25 mph gusts to 45 mph in the afternoon), rain and breezy (Wind: S 15-25 mph gusts to 45 mph) Tuesday night (0.50 in. of rain possible) and Wednesday, rain and snow showers and colder Wednesday night,
• Mostly cloudy with rain and snow showers and a bit cooler Thursday, then rain and  snow likely (70%) at night.
• free air freezing level 10,000 ft. tonight, snow level above 8,000 ft. Tuesday and Tuesday night, 7,500 ft. Wednesday, 5,000 ft. Wednesday night, then 3,500 ft. Thursday and Thursday night.
• lows 29-34 cooling to 24 Thursday night highs 42-32.
• Mostly cloudy with rain and snow and a bit cooler Friday, rain and snow showers likely (70%) and a bit cooler Friday night,
• Mostly cloudy and a bit cooler with showers likely (70%) Saturday, a good (50%) chance of snow showers Saturday night,
• Snow likely (70%) Sunday, then snow showers likely (70%) at night and Monday.
• snow level 3,000 ft. Friday, 2,500 ft. Friday night, at the surface Saturday, 2,500 ft. Saturday night, at the surface Sunday, 2,500 ft. Sunday night, then at the surface Monday.
• highs 32-28 lows 20-16.

 

 

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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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