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 frontal system that moved through Oregon. The graphics for days 3-7 show a disturbance heading our way Monday, then what appears to be a break from storms Tuesday through next Thursday. A front can be seen off the Canada coast Thursday 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 1 PM TONIGHT FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 2 PM TODAY 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 rain and snow showers likely (70%) with a slight (20%) chance of thunderstorms and a bit warmer this afternoon (0.10 in. of rain possible, little or no snow accumulation expected, snow level 500 ft. rising late this afternoon), a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, a good (50%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, more possible in storms, snow level 1,000 ft. late),
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers and a bit warmer Sunday afternoon (under 0.10 in. of rain possible, AM snow level 500 ft.), mostly cloudy with a good (50%) chance of evening showers, a good (50%) chance of rain Sunday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Monday and at night.
- highs 47-52 lows 32-37.
- Mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday, a slight (20%) chance of rain at night and Wednesday, partly cloudy Wednesday night,
- Partly cloudy and a bit warmer Thursday and at night,
- Then a mix of clouds and sun Friday.
- highs 55-60 lows 39-36. (seasonal averages high 58 low 38)
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Forecast for Roseburg:
- Cloudy with rain and snow showers and a slight (20%) chance of thunderstorms and a bit warmer this afternoon and evening (under 0.10 in. of rain possible, 1 in. of snow possible lower elevations while 1-2 in. of snow possible above 1,500 ft., snow level 600 ft. rising to 1,500 ft. this afternoon), 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 and a bit warmer with a good (50%) chance of rain and snow showers Sunday (under 0.10 in. of rain possible, snow level 1,500 ft. rising to 2,000 ft.), a (30%) chance of rain and snow Sunday night (snow level 2,500 ft. falling to 2,000 ft. late at night),
- Mostly cloudy and a bit warmer with a (30%) chance of rain and snow Monday (snow level 1,000 ft. rising to 2,500 ft.), then a slight (20%) chance of rain at night.
- highs 48-54 lows 33-38.
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday, mostly cloudy and a bit warmer Tuesday night and Wednesday, partly cloudy and a bit warmer at night and Thursday, mostly clear Thursday night,
- Then just mostly cloudy Friday.
- highs 60-66 lows near 40. (seasonal averages high 59 low 40)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with coastal showers and a slight (20%) chance of thunderstorms and a bit warmer this afternoon while inland snow showers and a slight (20%) of thunderstorms this afternoon (0.50 in. of rain possible, 1 in. of snow possible, snow level 900 ft. rising to 1,500 ft.), showers likely (70%) with a slight (20%) chance evening thunderstorms, a slight (20%) chance of coastal thunderstorms late tonight while a slight (20%) 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 cooler Sunday afternoon (under 0.10 in. of rain possible, AM snow level 2,000 ft), mostly cloudy with a slight (20%) chance of coastal rain at night while a slight (20%) chance of inland evening rain with a slight (20%) chance of inland rain and snow late Sunday night,
- Mostly cloudy with a (30%) chance of coastal rain and a bit warmer while with a slight (20%) chance of inland AM rain and snow with a good (50%) chance of showers Monday afternoon, then a slight (20%) chance of rain at night.
- highs 48-52 lows 36-40.
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday, just partly cloudy Tuesday night,
- Mostly cloudy Wednesday, partly cloudy at night,
- Then partly cloudy Thursday through Friday.
- highs 56-62 cooling to 58 Friday lows 42-40. (seasonal averages high 54 low 42)
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Forecast for the Cascades in Lane County:
- Mostly cloudy and a bit warmer with snow showers this afternoon (1 in. of snow possible), evening snow showers likely (70%), mostly cloudy and cold with a good (50%) chance of snow showers late tonight (1-3 in. of snow possible),
- Mostly cloudy with a good (50%) chance of snow showers Sunday (1 in. of snow possible), a good (50%) chance of evening snow showers, mostly cloudy with a good (50%) chance of snow and cold Sunday night (1 in. of snow possible),
- Mostly cloudy with a slight (20%) chance of AM snow, a bit warmer with a (30%) chance of snow Monday afternoon, then a (40%) chance of rain and snow at night.
- snow level at the surface this afternoon, 2,500 ft. this evening, at the surface Sunday, 2,000 ft. Sunday night and Monday afternoon, then 3,000 ft. Monday night.
- highs 32-36 lows 19-24.
- A mix of clouds and sun and a bit warmer Tuesday with a slight (20%) chance of rain and snow, mostly cloudy with a slight (20%) chance of rain Tuesday night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Wednesday, partly cloudy Wednesday night through Thursday night,
- Then partly cloudy Friday.
- snow level 3,500 ft. Tuesday, 6,500 ft. Tuesday night, 6,000 ft. Wednesday, free air freezing level 11,000 ft. Wednesday night, 11,000 ft. Thursday and Thursday night, then 10,000 ft. Friday.
- highs 42-50 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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