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 Air Low Pressure Trough (Shaded “U” shape with blue arrows) is pushing a frontal system shown on the days 1-3 graphic into the Pacific Northwest (up to 3 in. of rain possible some areas). The graphic for days 3-7 shows more frontal systems heading our way Saturday, Monday into Tuesday, and yet another approaching from the northwest Wednesday 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 29 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 74 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 WIND WARNING IS IN EFFECT UNTIL 10 AM WEDNESDAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A HIGH WIND WARNING IS IN EFFECT UNTIL 4 PM WEDNESDAY FOR THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
• AN ICE STORM WARNING IS IN EFFECT UNTIL 10 PM THIS EVENING FOR THE GREATER PORTLAND METRO AREA.
• AN ICE STORM WARNING IS IN EFFECT 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.
• A FLOOD WATCH IS IN EFFECT 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 FLOOD WATCH IS IN EFFECT THROUGH LATE WEDNESDAY NIGHT FOR THE CETRAL OREGON COAST, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• A HIGH WIND WARNING IS IN EFFECT UNTIL 4 PM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A HIGH SURF ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIIL 7 PM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A FLOOD WATCH IS IN EFFECT FROM THIS EVENING THROUGH LATE WEDNESDAY NIGHT FOR THE CURRY COUNTY COAST, EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY.
• A WIND ADVISORY IS IN EFFECT  FROM 10 PM THIS EVENING UNTIL 10 PM WEDNESDAY FOR JACKSON COUNTY.
• A WINTER STORM WARNING IS IN EFFECT FROM 10 AM UNTIL 10 PM WEDNESDAY FOR THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM WEDNESDAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• A WIND ADVISORY IS IN EFFECT FROM 4 AM WEDNESDAY UNTIL 4 AM THURSDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• 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:

• Cloudy with rain, heavy at times, tonight (1.50 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 35 mph),
• Mostly  cloudy and a bit warmer with rain (0.50 in. of rain possible) Wednesday, heavy at times in the AM, and breezy (Wind: S 15-25 mph gusts to 35 mph decreasing to S 10-15 mph gusts to 25 mph in the  afternoon), evening rain, showers late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers and a bit cooler Thursday (under 0.10 in. of rain possible), rain and a bit cooler Thursday night (0.25 in. of rain possible) and Friday, then cloudy with a good (50%) chance of showers Friday night.
• lows 49-34 highs 53-44.
• Mostly cloudy with showers likely (70%) and a bit cooler Saturday, cloudy with a good (50%) chance of showers Saturday night,
• Rain likely (70%) Sunday, a (40%) chance of showers showers at night,
• A good (50%) chance of showers Monday, mostly cloudy with a (50%) chance of showers Monday night,
• Then cloudy with a good (50%) chance of showers Tuesday.
• highs near 40 lows 34-32. (seasonal averages high 48 low 34)

 

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Forecast for Roseburg:

• Cloudy with rain (0.50 in. of rain possible) tonight and breezy (Wind: S 15-25 mph),
• Mostly cloudy and a bit cooler Wednesday with rain (1.00 in. of rain possible)and breezy (Wind: S 15-25 mph) evening rain, showers late Wednesday night (0.50 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers and a bit cooler Thursday (0.25 in. of rain possible, snow level 3,000 ft. rising to 3,500 ft. in the afternoon), evening rain likely (70%), rain late at night (0.10 in. of rain possible, snow level 3,500 ft.),
• Mostly cloudy with rain likely (70%) and a bit cooler Friday, then showers likely (70%) Friday night.
• lows 45-36 highs 52-44.
• Cloudy and a bit warmer with a good (50%) chance of snow showers Saturday, mostly cloudy with a good (50%) chance of snow Saturday night and breezy,
• Snow likely (70%) and a bit cooler Sunday, cloudy with a good (50%) chance of snow showers Sunday night through Monday night,
• Then cloudy and a bit warmer with a good (50%) chance of snow showers Tuesday.
• highs 48-45 warming back to 48 Tuesday lows 38-32 warming to 36 Monday night. (seasonal averages high 50 low 37)

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

• Cloudy with rain (1.50 in. of rain possible) tonight (possibly heavy at times late) and very windy (Wind: S 25-40 mph at the shore while S 20-30 mph inland),
• Mostly cloudy and a bit cooler Wednesday with rain (1.50 in. of rain possible) and very windy (Wind: S 25-40 mph at the shore decreasing to S 15-25 mph in the afternoon while S 20-30 mph inland decreasing to S 10-20 mph inland in the afternoon), evening rain, showers and colder late Wednesday night (0.50 in. of rain possible),
• Mostly cloudy with AM coastal showers likely (70%) and a good (50%) chance of showers Thursday afternoon while a good (50%) chance of inland showers and a bit cooler Thursday (0.25 in. of rain possible), coastal rain at night while evening inland rain likely (70%) and inland rain late Thursday night (0.25 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Friday, then showers likely (70%) Friday night.
• lows 50-42 warming to 44 Friday night highs 56-49.
• Mostly cloudy and a bit warmer with showers Saturday, rain and a bit cooler at night and Sunday, showers likely (70%) Sunday night through Monday night,
• Then cloudy and a bit warmer with a good (50%) chance of showers Tuesday.
• highs 52-48 warming back to 52 Tuesday lows 42-38 warming back to 42 Monday night. (seasonal averages high 52 low 40)

 

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Forecast for the Cascades in Lane County:

• Cloudy with rain (1.50 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 50 mph) tonight (1.00 in. of rain possible),
• Mostly cloudy with rain (1.00 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph) Wednesday, evening rain or snow, rain and snow showers and colder late Wednesday night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Thursday, rain and  snow at night,
• Mostly cloudy with rain and snow and a bit cooler Friday, cloudy with a good (50%) chance of snow showers Friday night.
• snow level above 8,000 ft. tonight, 8,000 ft. falling to 7,000 ft. Wednesday afternoon, 5,000 ft. falling to 4,000 ft. late Wednesday night, 3,500 ft. Thursday and Thursday night, 3,000 ft. Friday, then 3,500 ft. Friday night.
• lows 38-22 highs 39-32.
• Mostly cloudy and a bit cooler with snow showers Saturday, snow likely (70%) Saturday night,
• Snow showers likely (70%) Sunday, a good (50%) chance of rain and snow showers likely (70%) at night,
• Cloudy with a good (50%) chance of snow showers Monday and Tuesday, mostly cloudy with a good (50%) chance of snow showers Monday night.
• snow level 2,500 ft. Saturday, 3,000 ft. Saturday night, 3,500 ft. Sunday, then 2,500 ft. Sunday night through Tuesday.
• highs near 30 lows 22-15.

 

 

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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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