Here is my weekly weather quiz question for the last time. What is “The Intertropical Convergence Zone? Here is the correct answer. The Intertropical Convergence Zone( ITCZ) is the region where the northeasterly and southeasterly trade winds converge, forming an often continuous band of clouds or thunderstorms near the equator.
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An Upper Level Low Pressure Trough (“U “shape) is approaching the coast and allowing moisture in the form of clouds to move over the Pacific Northwest. The graphics for days 1-3 show a frontal system headed our way between Monday and Tuesday. The graphics for days 3-7 show more complex frontal activity moving our way Wednesday through next Sunday returning the rain chances and raising overnight low temperatures.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 31 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 33 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 33 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
NOTE: Outdoor burning remains temporarily prohibited for the following areas: Eugene-Springfield (Always), Florence (Always), Lowell, Oakridge and UGB, and Springfield and UGB.
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ADVISORIES:
- A WIND ADVISORY IS IN EFFECT UNTIL 10 AM MONDAY FOR THE LOWER COLUMBIA BASIN OF OREGON, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A HIGH WIND WARNING IS IN EFFECT FROM 6 PM MONDAY UNTIL 10 AM TUESDAY FOR THE LOWER COLUMBIA BASIN OF OREGON, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, AND NORTH CENTRAL OREGON.
- A HIGH WIND WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY AFTERNOON FOR CENTRAL AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT FROM 8 AM UNTIL 5 PM TUESDAY FOR HARNEY COUNTY AND MALHEUR COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 1 AM TODAY ABOVE 4,000 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND AND THE NORTHWEST BLUE MOUNTAINS.
- A HIGH SURF ADVISORY IS IN EFFECT FROM 4 PM TUESDAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH LATE TUESDAY NIGHT FOR THE NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE COAST RANGE OF NORTHWEST OREGON, AND THE CENTRAL COAST RANGE OF WESTERN OREGON.
- A WINTER STORM WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH LATE TUESDAY NIGHT ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH LATE TUESDAY NIGHT FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH WEDNESDAY MORNING FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS AND THE SOUTH CENTRAL OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY MORNING ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH WEDNESDAY MORNING FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND AND THE NORTHWEST BLUE MOUNTAINS.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH WEDNESDAY MORNING FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND THE SOUTH CENTRAL OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE MONDAY NIGHT THROUGH WEDNESDAY MORNING FOR THE SISKIYOU MOUNTAINS AND THE SOUTHERN OREGON CASCADES.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER 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 showers late tonight,
- Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of rain and a bit cooler Monday afternoon (President’s Day), rain Monday night (under 0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with rain Tuesday (0.25 in. of rain possible), evening rain with a (40%) chance of snow, freezing rain with rain likely (70%) with rain likely (70%) at night (0.10 in. of rain possible, snow level 500 ft.),
- Mostly cloudy with showers and a good (50%) chance of snow showers and a bit cooler with Wednesday (snow level 500 ft.), a good (50%) chance of evening showers, then a (50%) chance of snow showers late Wednesday night.
- lows 39-24 highs 52-40.
- Clouds and sun with a (30%) chance of AM snow showers, a mix of clouds and sun with a slight (20%) chance of snow Thursday afternoon, partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late Thursday night,
- Partly cloudy with a (30%) chance of snow Friday afternoon, partly cloudy with a (30%) chance of evening snow and freezing rain, mostly cloudy with a (30%) chance of snow and freezing rain late at night (snow level 500 ft.),
- Mostly cloudy with a good (50%) chance of AM rain and freezing rain, and a bit warmer with rain likely (70%) Saturday afternoon, rain likely (70%) Saturday night,
- Then mostly cloudy with rain likely (70%) Sunday.
- highs 40-44 lows 16-32 (seasonal averages high 52 low 35)
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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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Forecast for the Umpqua Valley including Roseburg:
- Becoming mostly cloudy late tonight,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon (President’s Day), a good (50%) chance of evening rain, rain Monday night (under 0.10 in. of rain possible, snow level 2,500 ft. late at night),
- Mostly cloudy with rain and snow showers (0.25 in. of rain possible, AM snow possibly heavy at times, snow level 1,500 ft., patchy blowing snow, visibility 0.25 mile), rain and snow showers and cooler with patchy blowing snow Tuesday afternoon and and Tuesday night (visibility 0.25 mi. or less), rain and snow showers Tuesday night (0.25 in. of rain possible),
- Mostly cloudy with rain and snow showers and a bit cooler Wednesday, then a good (50%) chance of snow showers and colder late Wednesday night.
- lows 37-40 cooling to 32 Tuesday night highs 59-40.
- Mostly cloudy and a bit warmer with a good (50%) chance of show showers Thursday, partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late Thursday night,
- Mostly cloudy with a slight (20%) chance of AM snow showers, a slight (20%) chance of rain and snow showers Friday and at night,
- Mostly cloudy with a (40%) chance of rain and snow showers and a bit warmer Saturday, rain and snow showers likely (70%) and a bit warmer Saturday night and Sunday.
- highs 42-46 lows 20-33. (seasonal averages high 55 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Becoming mostly cloudy late tonight,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon (President’s Day), cloudy with rain Monday night (0.10 in. of rain possible)
- Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms and a bit cooler Tuesday while showers, snow showers and a slight (20%) chance of thunderstorms Tuesday (0.25 in. of rain possible, small hail possible in storms, inland snow possibly heavy at times) and breezy (Wind: NW 15-25 mph gusts to 40 mph), evening coastal showers with a good (50%) chance of thunderstorms and coastal showers, snow showers and thunderstorms late at night while inland evening showers, show showers and a good (50%) chance of thunderstorms and showers, snow showers and a slight (20%) chance of thunderstorms late at night (0.25 in. of rain possible, small hail possible in evening thunderstorms) and breezy (Wind: NW 15-25 mph gusts to 40 mph decreasing NW 10-15 mph late at night),
- Mostly cloudy with AM rain showers and snow showers and a slight (20%) chance of thunderstorms, a bit cooler with rain and snow showers Wednesday afternoon, evening rain and snow showers likely (70%), then colder with a good (50%) chance of rain and snow showers late Wednesday night.
- lows 39-28 highs 55-45.
- Mostly cloudy a with a good (50%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of rain and snow showers Thursday night,
- Partly cloudy with a (20%) chance of rain and snow showers Friday, mostly cloudy with a (30%) chance of rain and snow showers at night,
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers likely (70%) and a bit warmer Saturday afternoon and Saturday night,
- Then mostly cloudy and a bit warmer with showers likely (70%) Sunday.
- highs 45-49 lows 22-34. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Becoming mostly cloudy with a slight (20%) chance of showers late tonight,
- Mostly cloudy with a good (50%) chance of rain (under 0.10 in. of rain possible) and a bit cooler Monday afternoon (President’s Day), rain and snow Monday night (0.50 in. of rain possible, 1-4 in. of snow possible, snow possibly heavy at times) and breezy (Wind: SW 15-25 mph gusts to 40 mph increasing to 55 mph late at night),
- Mostly cloudy and cooler with snow (possibly heavy at times) and blustery (Wind: w 15-25 mph gusts to 55 mph decreasing to 35 mph in the afternoon) Tuesday, evening snow (possibly heavy at times), snow late at night,
- Mostly cloudy with snow showers and a bit cooler Wednesday, evening snow showers likely (70%), then a good (50%) chance of snow showers late Wednesday night (wind chill temperature down to 0).
- snow level 5,500 ft. tonight, 5,000 ft. Monday, 4,000 ft. Monday night, 2,500 ft. Tuesday, then at the surface Tuesday night through Wednesday night.
- lows 28-10 highs 40-25.
- A mix of clouds and sun and a bit cooler with a good (50%) chance of snow Thursday (wind chill temperature down to -5), partly cloudy with a (40%) chance of snow Thursday night (wind chill temperature down to -5 late at night),
- Partly cloudy with a slight (20%) chance of AM snow, a bit warmer with a (40%) chance of snow Friday afternoon (AM wind chill temperature down to 0), partly cloudy with a (40%) chance of snow at night,
- Clouds and sun with a good (50%) chance of AM snow, snow likely (70%) and a bit warmer Saturday afternoon, snow and rain likely (70%) Saturday night,
- Then snow likely (70%) Sunday.
- snow level at the surface Thursday through Friday night, 2,000 ft. Saturday, 3,000 ft. Saturday night, then 2,500 ft. Sunday.
- highs 23-33 lows 5-22.
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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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**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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