Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/01/like-river-avalanche-can-deadly/
__________
Here is my weekly weather quiz question for the last time. What are “Crepuscular Rays?” Here is the correct answer. Crepuscular Rays are the alternating bands of light and dark (rays and shadows) seen at the earth’s surface when the sun shines through clouds. 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.
________________
An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is continuing to bring the wet weather. The graphics for days 1-3 show a warm front moving into the Pacific Northwest Saturday and the cold front that will follow it by Monday. The graphics for days 3-7 show surface high pressure trying to keep the next frontal systems away from us.
Note: Mt. Ashland opened for skiing with regular hours through Monday. Check their webpage for details. Hoodoo reports they are open Sunday from 9 AM until 9 PM. Willamette Pass still doesn’t have enough snow to open.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 26 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 27 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
__________________
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)
________________
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:
- Patchy AM fog with a slight (20%) chance of rain, a mix of clouds and sun and a bit warmer this afternoon, partly cloudy this evening, mostly cloudy with patchy fog late tonight and Monday AM, a mix of clouds and sun and a bit cooler in the afternoon, increasing clouds to mostly cloudy with rain Monday night,
- Mostly cloudy and a bit cooler with showers likely (70%) Tuesday, then a good (50%) chance of showers at night.
- highs 58-50 lows 42-36.
- A mix of clouds and sun with a (30%) chance of showers and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Thursday, partly cloudy with increasing clouds and a (30%) chance of rain Thursday night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Friday, mostly cloudy with a slight (20%) chance of showers at night,
- Then mostly cloudy and a bit warmer with a (30%) chance of showers Saturday.
- highs 49-53 lows 34-37. (seasonal averages high 49 low 35)
_________________
Forecast for Roseburg:
- Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler this afternoon and evening, mostly cloudy with patchy fog late tonight and Monday AM, mostly cloudy and a bit cooler in the afternoon, becoming cloudy with a slight (20%) chance of evening rain, rain late Monday night,
- Mostly cloudy with a good (50%) chance of showers and a bit cooler Tuesday and at night.
- highs 56-58 cooling to 52 Tuesday lows 43-38.
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers Wednesday, partly cloudy in the afternoon and evening, mostly cloudy with patchy fog late Wednesday night and Thursday AM, mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday afternoon and at night with patchy fog late,
- Patchy AM fog, mostly cloudy and a bit warmer with a slight (20%) chance of rain Friday, then mostly cloudy with a slight (20%) chance of showers at night and Saturday.
- highs 50-50 warming to 55 Saturday lows 38-42. (seasonal averages high 51 low 37)
_____________________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with areas of AM fog, partly cloudy and a bit warmer this afternoon, mostly cloudy with patchy fog late tonight and Monday AM, mostly cloudy and a bit warmer in the afternoon, evening rain, rain likely (70%) late Monday night,
- Mostly cloudy and a bit cooler with a good (50%) chance of showers Tuesday and at night.
- highs 59-62 cooling to 52 Tuesday lows 45-40.
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers, becoming partly cloudy and a bit warmer Wednesday afternoon and evening, mostly cloudy with patchy fog late Wednesday night,
- Patchy AM and late night fog, mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday and at night,
- Patchy AM fog, then mostly cloudy with a slight (20%) chance of rain Friday, then a slight (20%) chance of showers Friday night and Saturday.
- highs 53-56 lows 40-43. (seasonal averages high 52 low 40)
________________
Forecast for the Cascades in Lane County:
- A slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer this afternoon, just partly cloudy tonight,
- A mix of clouds and sun and a bit warmer Monday, increasing clouds to mostly cloudy with evening rain, rain and snow late at night,
- Mostly cloudy with rain and snow showers and cooler Tuesday, then a good (50%) chance of rain and snow showers Tuesday night.
- snow level 6,000 ft. today, free air freezing level 10,000 ft. late tonight, 10,000 ft. falling to 9,000 ft. Monday, snow level 6,000 ft. Monday night, then 3,500 ft. Tuesday and Tuesday night.
- highs 46-36 lows 33-25.
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of snow showers Wednesday, just partly cloudy at night,
- A mix of clouds and sun with a slight (20%) chance of rain and snow Thursday, mostly cloudy with a (40%) chance of rain and snow at night,
- A mix of clouds and sun and a bit warmer with a (30%) chance of rain or snow and a bit warmer Friday, mostly cloudy with a (30%) chance of showers Friday night,
- Then mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Saturday.
- snow level at the surface Wednesday, free air freezing level 3,500 ft. Wednesday night, snow level 3,000 ft. Thursday, 5,000 ft. Thursday night, 5,500 ft. Friday, 6,000 ft. Friday night, then 5,500 ft. Saturday.
- highs 34-45 lows 25-32.
________________
**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.
________________
Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
________________