Here is my weekly weather quiz question. What is a “Jetty? 

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An Upper Level Low Pressure Trough (“U” shape) is approaching the Pacific Northwest and the Atmospheric River remains well to the south moving over central and southern California. The graphics for days 1-3 show a frontal system moving our way Thursday. The graphics for days 3-7 show an increase in complex frontal systems moving our way Friday through next Tuesday continuing the rain chances.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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ADVISORIES:

• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 2,500 FT. FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 1,500 FT. FOR THE COAST RANGE OF NORTHWEST  OREGON AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 3,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON FOR THE SOUTH CENTRAL THE OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 2,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
• A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON ABOVE 2,500 FT. FOR THE EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with patchy frost late tonight,
• Clouds and sun with patchy AM frost and a slight (20%) chance of showers, a mix of clouds and sun and a bit cooler with showers Wednesday afternoon (under 0.10 in. of rain possible), increasing clouds with evening showers and a slight (20%) chance of thunderstorms, mostly cloudy with showers likely (70%) late Wednesday night (under 0.10 in. of rain possible, more in storms),
• Mostly cloudy with showers and a bit cooler Thursday (0.25 in. of rain possible), showers with a slight (20%) chance of thunderstorms possible, snow showers late at night (0.25 in. of rain possible, snow level 1,000 ft., small hail possible),
• Mostly cloudy with AM showers and snow showers, showers and a slight (20%) chance of thunderstorms a bit cooler Friday afternoon (snow level 1,500 ft., small hail possible), then showers with snow showers likely (70%) late Friday night (snow level 500 ft.).
• lows 34-40 cooling to 33 Friday night highs 58-45.
•  Mostly cloudy with AM showers and snow showers, showers and a bit warmer Saturday afternoon (snow level 1,000 ft.), a good (50%) chance of evening showers, partly cloudy with a slight (20%) chance of showers and snow showers late Saturday night (snow level 1,000 ft.),
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit warmer Sunday afternoon (snow level 1,500 ft.), a good (50%) chance of showers at night,
• Mostly cloudy with a good (50%) chance of AM showers and snow showers, a bit warmer with a good (50%) chance of showers Monday afternoon (snow level 1,500 ft.), a (30%) chance of evening showers, a slight (20%) chance of rain and snow showers late Monday night,
• Partly cloudy with a slight (20%) chance of AM showers, then a (30%) chance of showers and a bit warmer Tuesday afternoon.
• highs 46-55 lows near 32. (seasonal averages high 58 low 38)

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Home Wood Heating Advisory:

Posted Daily

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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Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Partly cloudy with patchy fog tonight,
• Mostly cloudy with patchy AM fog and showers likely (70%), showers and a slight (20%) chance of thunderstorms a bit cooler Wednesday afternoon and evening (under 0.10 in. of rain possible), a good (50%) chance of rain and snow showers at night (under 0.10 in. of rain possible, snow level 3,500 ft. falling to 2,5oo0 ft. late at night),
• Mostly cloudy with rain and snow showers and a bit cooler Thursday (0.25 in. of rain possible, snow level 2,500 ft.), showers and snow showers with a slight (20%) chance of thunderstorms Thursday night (0.10 in. of rain possible, snow level 1,500 ft.),
• Mostly cloudy with AM rain and snow showers, a bit cooler with showers, snow showers and a slight (20%) chance of thunderstorms Friday afternoon, evening rain and snow showers, then snow showers late Friday night.
• lows 37-42 cooling to 34 Friday night highs 57-46.
• Mostly cloudy with AM snow showers, rain and snow showers and a bit warmer Saturday afternoon, a good (50%) chance of rain and snow showers Saturday night,
• Mostly cloudy with a good (50%) chance of rain and snow showers and a bit warmer Sunday and in the evening, rain and snow showers likely (70%) late Sunday night,
• Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Monday, a (30%) chance of rain and snow showers Monday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Tuesday.
• highs 47 -56 lows near 34. (seasonal averages high 60 low 40)

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

• Becoming mostly cloudy with a slight (20%) chance of coastal showers late tonight while inland patchy fog tonight beginning late this evening,
• Mostly cloudy with a slight (20%) chance of AM coastal showers and a bit cooler with coastal showers likely (70%) Wednesday afternoon while patchy AM inland fog and inland showers likely (70%) Wednesday (under 0.10 in. of rain possible), coastal evening showers likely (70%) with coastal showers late at night while inland evening showers and inland showers likely (70%) late Wednesday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM coastal showers with coastal showers and a slight (20%) chance of thunderstorms and a bit cooler Thursday afternoon while inland showers Thursday (0.25 in. of rain possible, snow level 2,000 ft.), coastal showers with a slight (20%) chance of thunderstorms at night while inland snow showers and a slight (20%) chance of thunderstorms at night (0.25 in. of rain possible),
• Mostly cloudy with rain showers and snow showers with a slight (20%) chance of thunderstorms and a bit cooler Friday afternoon, then rain and snow showers Friday night.
• lows 36-38 cooling to 33 Friday night highs 52-47.
• Mostly cloudy with AM rain and snow showers, showers Saturday afternoon, a (50%) chance of rain and snow showers Saturday  night,
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers likely (70%) and a bit warmer Sunday afternoon, rain and snow showers likely (70%) at night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit warmer Monday, a (40%) chance of showers Monday night,
• Mostly cloudy with a (40%) chance of AM rain and snow showers, then a (30%) chance of rain and a bit warmer Tuesday afternoon.
• highs 47-45 lows 32-34. (seasonal averages high 55 low 42)

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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Partly cloudy tonight,
• AM clouds and sun with a good (50%) chance of showers,  showers with snow showers likely (70%) and a bit cooler with a slight (20%) chance of thunderstorms Wednesday afternoon and evening (0.25 in. of rain possible, 1 in. of snow possible, evening snow possibly heavy at times), snow and rain showers late Wednesday night (0.50 in. of rain possible, 2-5 in. of snow possible),
• Mostly cloudy with snow showers and a bit cooler Thursday afternoon (snow possibly heavy at times) and breezy (Pass Wind: SW 10-15 mph gusts to 30 mph increasing to SW 15-25 mph afternoon gusts to 40 mph), snow showers (possibly heavy at times) and breezy (Pass Wind: W 15-25 mph gusts to 35 mph),
• Mostly cloudy and a bit cooler with snow showers Friday and a slight (20%) chance of afternoon thunderstorms (small hail possible, snow possibly heavy at times, then snow showers with brisk wind Friday night (snow possibly heavy at times in the evening),
• free air freezing level 6,000 ft. falling to 5,000 ft. late tonight, snow level 3,500 ft. rising to 4,500 ft. Wednesday afternoon, 4,000 ft. falling to 3,000 ft. late Wednesday night, 2,500 ft. Thursday, then at the surface Thursday night through Friday night.
• lows 24-26 cooling to 18 Friday night highs 39-27.
• Mostly cloudy with snow showers Saturday, evening snow showers likely (70%), a good (50%) chance of snow showers late Saturday night,
• Mostly cloudy with a good (50%) chance of AM snow showers, snow showers likely (70%) and a bit warmer Sunday afternoon, a good (50%) chance of evening rain and snow showers, partly cloudy with a good (50%) chance of snow showers late at night,
• Mostly cloudy with a good (50%) chance of AM snow showers, snow showers likely (70%) and a bit warmer Monday afternoon, a good (50%) chance of evening showers, a good (50%) chance of snow showers late Monday night,
• Clouds and sun with a (40%) chance of AM snow showers, then a mix of clouds and sun and a bit warmer with a (40%) chance of showers Monday afternoon.
• snow level at the surface Saturday through Sunday, 1,500 ft Sunday night, 2,000 ft. Monday and Monday night, then 3,000 ft. Tuesday.
• highs 27-36 lows 17-19.

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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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