Here is my new weekly weather quiz question. What are “Instrument Flight Rules (IFR)?
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An Upper Level High Pressure Ridge www.wunderground.com/maps/wind/jet-stream (“Arch” shape) is slowly warming up the Pacific Northwest. A strong cold front www.wpc.ncep.noaa.gov pushed through the Pacific Northwest from the northeast (called a backdoor cold front) and brought colder air with it. There will be frontal activity returning by the end of the week, but not of the bitter cold airflow nature.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 19 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 13 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, Florence, Lowell, Oakridge and UGB, and Springfield and UGB.
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ADVISORIES:
- A WIND ADVISORY IS IN EFFECT FROM 10 PM THURSDAY UNTIL 10 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY AND THE EASTERN DOUGLAS COUNTY FOOTHILLS.
- A WIND ADVISORY IS IN EFFECT FROM 4 PM THURSDAY UNTIL 4 PM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 4 PM FRIDAY FOR THE GRANDE RONDE VALLEY.
- A WIND ADVISORY IS IN EFFECT FROM 1 PM THURSDAY UNTIL 10 AM FRIDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 1 PM MST (MOUNTAIN STANDARD TIME) FRIDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy tonight,
- Some AM clouds, a mix of clouds and sun to mostly cloudy with sun breaks and a bit cooler Thursday afternoon, cloudy with a good (50%) chance of rain late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy and a bit warmer with rain Friday (under 0.10 in. of rain possible), cloudy with a good (50%) chance of evening rain, a slight (20%) chance of rain late at night,
- Cloudy with a (40%) chance of rain and a bit warmer Saturday, then rain Saturday night.
- lows 26-42-39 highs 48-56.
- Mostly cloudy and a bit cooler with rain Sunday, showers likely (70%) Sunday night,
- Cloudy and a bit warmer with a good (50%) chance of showers Monday, mostly cloudy with a (40%) chance of showers at night,
- Cloudy with a good (50%) chance of rain and a bit warmer Tuesday, a good (50%) chance of showers Tuesday night,
- Then mostly cloudy and a bit cooler with a good (50%) chance of rain Wednesday.
- highs 47-50 cooling to 48 Wednesday lows 42-38. (seasonal averages high 50 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:
- Partly cloudy tonight,
- Mostly cloudy and a bit cooler Thursday, a (30%) chance of rain Thursday night (under 0.10 in. of rain possible, snow level 3,500 ft.),
- Mostly cloudy and a bit cooler with rain likely (70%) Friday (AM snow level 3,500 ft.), cloudy with a (30%) chance of rain at night (under 0.10 in. of rain possible),
- Cloudy and a bit warmer with a slight (20%) chance of rain Saturday, then rain Saturday night.
- lows 30-42 highs 54-52 warming to 56 Saturday.
- Mostly cloudy with rain and a bit cooler Sunday rain Sunday night,
- Mostly cloudy and a bit warmer with a (20%) chance of rain Monday and at night,
- Mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday and Tuesday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of rain Wednesday.
- highs 48-53 cooling to 50 Wednesday lows 42-39 warming back to 42 Tuesday night. (seasonal averages high 52 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening, mostly cloudy late tonight,
- Cloudy with a slight (20%) chance of coastal rain Thursday while a slight (20%) chance of AM inland rain Thursday afternoon (under 0.10 in. of rain possible), mostly cloudy with a (40%) chance of evening coastal rain and coastal rain late at night while a slight (20%) of inland evening rain and inland rain likely (70%) late Thursday night (0.25 in. of rain possible) breezy (Wind: S 20-30 mph gusts to 45 mph),
- Mostly cloudy with rain and a bit cooler Friday (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph through early afternoon), cloudy with a (30%) chance of rain Friday night (under 0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of rain and a bit warmer Saturday, then rain Saturday night.
- lows 35-43 highs 56-54 warming to 58 Saturday.
- Mostly cloudy and a bit cooler with rain Sunday, a good (50%) chance of rain Sunday night,
- Mostly cloudy and a bit warmer with a (30%) chance of rain Monday, a (30%) chance of rain at night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a good (50%) chance of rain Tuesday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of rain Wednesday.
- highs 52-54 cooling back to 52 Wednesday lows 42-39. (seasonal averages high 54 low 41)
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Forecast for the Cascades in Lane County
- Partly cloudy tonight,
- A mix of clouds and sun to start, becoming partly to mostly cloudy and a bit cooler Thursday afternoon, mostly cloudy with a (40%) chance of rain or snow late Thursday night (no snow accumulation expected),
- Cloudy with AM rain or snow, a bit cooler with a rain or snow Friday afternoon (2-4 in. of snow possible), a good (50%) chance of rain or snow at night,
- Cloudy and a bit warmer with a good (50%) chance of rain or snow Saturday,then rain or snow late Saturday night.
- free air freezing level 7,000 ft. tonight, 8,000 ft. Thursday, snow level 4,500 ft. Thursday night, then 4,000 ft. Friday through Saturday night.
- lows 23-30 cooling to 28 Friday night warming back to 30 Saturday night highs 40-36 warming to 38 Saturday.
- Mostly cloudy and a bit cooler with rain or snow Sunday, rain or snow likely (70%) Sunday night,
- Mostly cloudy with a good (50%) chance of rain or snow Monday and at night,
- Mostly cloudy and a bit warmer with rain or snow likely (70%) Tuesday, rain and snow likely (70%) Tuesday night,
- Then mostly cloudy and a bit cooler with a good (50%) chance of rain or snow Wednesday.
- snow level 4,000 ft. Sunday and Sunday night, 3,000 ft. Monday, then 3,500 ft. Monday night through Wednesday.
- highs 33-37 cooling to 33 Wednesday lows 27-25.
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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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