Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/03/they-flutter-like-little-helicopters/
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Here is my weekly weather quiz question for the last time. What is a “Degree Day?” Here is the correct answer. A Degree Day is a measure that gauges the amount of heating or cooling needed for a building using 65 degrees as a baseline. Electrical, natural gas, power, and heating, and air conditioning industries utilize heating and cooling degree information to calculate their needs. For more specific definitions and how to calculate degree days, see the definitions for Heating Degree Days and Cooling Degree Days. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) is sending us some more weather systems. The graphics for days 1-3 show the next disturbance to come our way. The graphics for days 3-7 show the break from storms Tuesday night through next Thursday. An Upper Level High Pressure Ridge (Shaded “Arch” shape with arrows) takes over Tuesday for some real spring weather. A front can be seen off the Canada coast Friday morning. An Upper Level High Pressure Ridge (Shaded “Arch” shape with arrows) takes over bringing sunshine and warmer temperatures for Tuesday through Friday of next week.
Note: Willamette Pass Ski is closed for the season due to a lack of snow, but Hoodoo is open Thursday through Sunday from 9 AM- 4 PM or 9 PM. Mt. Ashland is open and reports all lifts are operating. They will also be open 9 AM until 4 pm March 24th through April 1st for Spring break. Check their websites for details on days of operation and ski conditions.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 9 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 22 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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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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Advisories:
- A WINTER STORM WARNING IS IN EFFECT UNTIL 5 AM SUNDAY ABOVE 2,000 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 8 PM TONIGHT UNTIL 5 AM SUNDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
- 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 evening showers likely (70%), a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, 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 (0.10 in. of rain possible, AM snow level 500 ft.), a slight (20%) chance of evening rain, a good (50%) chance of rain Sunday night (0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of rain Monday and at night,
- Mostly cloudy with a slight (20%) chance of AM rain, a bit warmer with a (40%) chance of rain Tuesday afternoon, then a (30%) chance of rain Tuesday night.
- lows 32-40 highs 49-55.
- Mostly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday, partly cloudy Wednesday night,
- Partly cloudy and a bit warmer Thursday and at night,
- A mix of clouds and sun and a bit cooler Friday, then partly cloudy Friday night and Saturday.
- highs 58-60 cooling back to 58 Saturday lows 38-36. (seasonal averages high 58 low 38)
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Forecast for Roseburg:
- Cloudy with rain and snow showers likely (70%) and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft. falling to 1,500 ft. late at night),
- Mostly cloudy with a (30%) chance of rain and snow showers Sunday (under 0.10 in. of rain possible, snow level 1,000 ft. rising to 2,500 ft.), a (30%) chance of rain and snow Sunday night (snow level 2,500 ft. falling to 1,500 ft. late at night),
- Mostly cloudy and a bit warmer with a (40%) chance of rain and snow Monday (snow level 1,000 ft. rising to 2,500 ft.), a slight (20%) chance of rain at night,
- A bit warmer with a slight (20%) chance of showers Tuesday, just mostly cloudy Tuesday night.
- lows 34-42 highs 50-60.
- Mostly cloudy and a bit warmer Wednesday, mostly clear at night ,
- Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night and Friday (a bit cooler), mostly clear at night,
- Then mostly sunny Saturday.
- highs 66-68 cooling to 65 Friday and Saturday lows 40-36. (seasonal averages high 59 low 40)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with showers likely (70%) and a slight (20%) chance of evening thunderstorms, a slight (20%) chance of coastal thunderstorms late tonight while a good (50%) chance of inland rain and snow showers late tonight (0.10 in. of rain possible, no snow accumulation expected, snow level 2,000 ft. falling to 1,500 ft. late at night),
- Mostly cloudy with a (30%) chance of coastal showers while a (40%) chance of inland AM rain and snow showers with a (30%) chance of inland showers and a bit warmer Sunday afternoon (under 0.10 in. of rain possible, AM snow level 1,500 ft), mostly cloudy with a good (50%) chance of rain at night,
- Mostly cloudy with a (40%) chance of coastal rain and a bit warmer while a (30%) chance of inland AM rain and snow with a good (50%) chance of showers Monday afternoon (AM snow level 2,000 ft.), a slight (20%) chance of rain at night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday, then just mostly cloudy Tuesday night.
- lows 36-42 highs 49-56.
- Partly cloudy and a bit warmer Wednesday, mostly clear at night,
- Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
- Partly cloudy and a bit cooler Friday, mostly clear at night,
- Then mostly sunny and a bit cooler Saturday.
- highs 60-63 cooling to 57 Saturday lows 43-38. (seasonal averages high 54 low 42)
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Forecast for the Cascades in Lane County:
- Mostly cloudy and a bit warmer with evening snow, mostly cloudy and cold with a good (50%) chance of snow showers late tonight (2 in. of snow possible),
- Mostly cloudy with a good (50%) chance of snow showers Sunday (2 in. of snow possible), a good (50%) chance of evening snow, a slight (20%) chance of snow and cold Sunday night (1 in. of snow possible),
- Mostly cloudy with AM snow likely (70%), a bit warmer with a good (50%) chance of snow Monday afternoon, a good (50%) chance of rain and snow late at night,
- A mix of clouds and sun and a bit warmer Tuesday with a (40%) chance of rain and snow, then mostly cloudy with a slight (20%) chance of rain Tuesday night.
- snow level at the surface tonight and Sunday, 2,000 ft. Sunday night, 2,500 ft. Monday afternoon, 3,000 ft. Monday night, 4,000 ft. rising to 5,000 ft. Tuesday afternoon, then 7,000 ft. Tuesday night.
- lows 20-32 highs 32-43.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Wednesday, partly cloudy Wednesday night through Thursday night,
- A mix of clouds and sun Friday, then partly cloudy Friday night and Saturday (a bit cooler).
- snow level 6,500 ft. Wednesday, free air freezing level 9,000 ft. Wednesday night through Thursday night, 8,000 ft. Friday, 7,500 ft. Friday night, then 7,000 ft. Saturday.
- highs 47-52 cooling to 50 Saturday lows 30-28.
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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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