Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2017/12/promise-promise-not-awh-forget/
__________
Here is my weekly weather quiz question. What are “Convective Clouds?” 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.
________________
Upper Level High Pressure (Shaded “Arch” shape with blue arrows) weakens its hold on us allowing a series of storms to move our way. The graphics for days 1-3 show the frontal system that is heading our way Friday and Friday night. The graphics for days 3-7 show the next frontal systems heading our way Monday through next Friday.
NOTE: Hoodoo Ski Area Nordic Ski Trails Are Open for Free from 9 am-9pm through January 6th and Mt. Ashland Ski area is having a special event this Friday – check their website for details. Not enough snow yet at Willamette Pass Ski Area to open.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 45 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 27 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 49 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
__________________
Home Wood Heating Advisory:
(Posted Daily)
Eugene-Springfield: YELLOW – Caution is Advised.
Oakridge: YELLOW – Caution is Advised.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
________________
Advisories:
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 PM FRIDAY FOR THE UPPER HOOD RIVER VALLEY AND THE CENTRAL COLUMBIA RIVER GORGE.
- A WIND ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 PM FRIDAY FOR CENTRAL AND EASTERN LAKE 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.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Cloudy with rain likely (70%) tonight (0.25 in. of rain possible),
- Mostly cloudy and much warmer with rain Friday (0.25 in. of rain possible), showers at night (0.25 in. of rain possible),
- Mostly cloudy with a good (50%) chance of showers Saturday AM, a bit cooler with a slight (20%) chance of afternoon showers (under 0.10 in. of rain possible), just mostly cloudy in the evening, partly cloudy with patchy fog late Saturday night and Sunday AM, mostly cloudy and a bit warmer with a slight (20%) chance of rain in the afternoon, then a (40%) chance of rain Sunday night,
- lows 39-34 highs 52-46.
- A mix of clouds and sun with a slight (20%) chance of rain and a bit warmer Monday, cloudy with a (30%) chance of showers at night,
- Mostly cloudy and a bit cooler with a (40%) chance of showers Tuesday, mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday, a slight (20%) chance of rain Wednesday night,
- Then mostly cloudy and a bit warmer with a good (50%) chance of rain Thursday.
- highs 50-48 warming back to 50 Thursday lows 38-35. (seasonal averages high 46 low 34)
_________________
Forecast for Roseburg:
- Mostly cloudy with a (40%) chance of rain tonight (under 0.10 in. of rain possible),
- Cloudy with AM rain, rain likely (70%) and a bit cooler Friday afternoon (0.10 in. of rain possible), mostly cloudy with a (40%) chance of evening rain, a (40%) chance of showers late at night (0.10 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM rain, just mostly cloudy and a bit cooler Saturday afternoon and at night with areas of fog late Saturday night and Sunday AM, just mostly cloudy in the afternoon, then mostly cloudy with a (30%) chance of rain Sunday night.
- lows 47-38 highs 52-46.
- Mostly cloudy with a slight (20%) chance of rain and a bit warmer Monday, cloudy with a (30%) chance of rain at night,
- Cloudy with a (40%) chance of rain and a bit warmer Tuesday, mostly cloudy with a (30%) chance of showers Tuesday night and Wednesday, a slight (20%) chance of rain Wednesday night,
- Then mostly cloudy and a bit cooler with a (30%) chance of rain Thursday.
- highs 48-50 cooling to 47 Tuesday night lows near 40. (seasonal averages high 49 low 36)
_____________________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with a good (50%) chance of evening rain, rain late tonight (under 0.10 in. of rain possible) and Friday AM, a good (50%) chance of rain in the afternoon (0.25 in. of rain possible), cloudy with a (40%) chance of evening rain, a good (50%) chance of rain late Friday night (0.25 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and a bit cooler Saturday afternoon and at night with patchy fog late,
- Areas of AM fog, mostly cloudy with a slight (20%) chance of rain Sunday afternoon, then a (40%) chance of rain at night.
- lows 52-42 warming to 44 Sunday night highs 56-53.
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday, rain likely (70%) at night,
- Cloudy with a good (50%) chance of rain Tuesday, mostly cloudy with a (40%) chance of showers Tuesday night,
- A slight (20%) chance of showers Wednesday and at night,
- Then mostly cloudy and a bit cooler with a good (50%) chance of rain Thursday.
- highs 55-53 lows 32-40. (seasonal averages high 51 low 40)
________________
Forecast for the Cascades in Lane County:
- Cloudy with a good (50%) chance of rain tonight (0.10 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Friday (0.25 in. of rain possible), evening rain and snow, rain and snow showers and colder at night (2 in. of snow possible),
- Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of snow showers with a slight (20%) chance of showers and a bit cooler Saturday afternoon, just partly cloudy at night,
- A mix of clouds and sun and a bit warmer Sunday, then partly cloudy with a (30%) chance of rain and snow Sunday night.
- snow level 7,500 ft. tonight, 7,000 ft. Friday, 5,500 ft. falling to 4,500 ft. late Friday night, 3,500 ft. Saturday, free air freezing level 5,000 ft. rising to 6,500 ft. Saturday night, 9,000 ft. rising to 10,000 ft. Sunday, then snow level 4,500 ft. Sunday night.
- lows 32-27 warming to 30 Sunday night highs 42-36 warming to 38 Sunday.
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Monday, cloudy with a (40%) chance of showers Monday night and Tuesday, rain and snow showers likely (60%) Tuesday night,
- Mostly cloudy and a bit cooler with a good (50%) chance or rain and snow showers Wednesday, then mostly cloudy with a (40%) chance of rain Wednesday night and Thursday.
- snow level 5,500 ft. Monday, 6,500 ft. Monday night and Tuesday, 5,000 ft. Tuesday night, 3,500 ft. Wednesday and Wednesday night, then 5,000 ft. Thursday.
- highs 42-39 lows 32-28.
________________
**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.
________________