Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/02/first-dont-succeed-repeat-forecast/
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Here is my weekly weather quiz question for the last time. What is a “Derecho?” Here is the correct answer. A Derecho (Pronounced day-RAY-cho) is a widespread and usually fast-moving windstorm associated with convection. Derechos include any family of downburst clusters produced by an extratropical MCS (Mesoscale Convective System), and can produce damaging straight-line winds over areas hundreds of miles long and more than 100 miles across. 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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Another Upper Level Low Pressure Trough (Shaded “U” shape with arrows) continues to control our weather with temperatures well below normal, but the temperatures are slowly warming and the snow seems to be staying in the mountains. The graphics for days 1-3 show the front that moved through Friday and the next low pressure disturbance for today. The graphics for days 3-7 show what looks to be a strong storm system headed toward the Pacific Northwest by next Thursday and Friday. There is even another storm off Vancouver Island next Saturday.
Note: It looks like Willamette Pass Ski, due to a lack of snow, is still not operating, but Hoodoo is open Wednesday through Saturday from 9 AM- 9 PM. Mt. Ashland is open and report 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.
Note: Daylight Saving Time begins at 2 AM Sunday March 11th. That’s not this weekend, but the one after that.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 16 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 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 a good (50%) chance of showers and a bit cooler this afternoon (under 0.10 in. of rain possible, no snow accumulation expected, AM snow level 1,000 ft.), a good (50%) chance of evening showers, partly cloudy late tonight (under 0.10 in. of rain possible),
- A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Sunday, mostly cloudy with a slight (20%) chance of showers Sunday night,
- A mix of clouds and sun and a bit warmer with a (20%) chance of showers Monday, then partly cloudy with patchy fog late at night.
- highs 47-54 lows near 32.
- Patchy AM fog, partly cloudy and a bit warmer Tuesday and Tuesday night,
- Mostly cloudy Wednesday, a good (50%) chance of rain at night and Thursday, rain likely (70%) Thursday night,
- Then cloudy and a bit cooler with a good (50%) chance of rain Friday.
- highs near 55 lows 35-42. (seasonal averages high 54 low 36)
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Forecast for Roseburg:
- Mostly cloudy and a bit cooler with rain and snow showers this afternoon (0.10 in. of rain possible, 1 in. of snow possible, snow level 600 ft. rising to 2,000 ft. in the afternoon), scattered evening rain and snow showers, a slight (20%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, snow level 2,500 ft. falling to 1,500 ft.),
- Mostly cloudy with a slight (20%) chance of rain and snow showers and a bit warmer Sunday afternoon (snow level 2,000 ft.), a slight (20%) chance of evening showers (snow level 3,000 ft.), just mostly cloudy late at night,
- Monday with patchy AM freezing fog,
- Mostly cloudy with patchy AM freezing fog, then partly cloudy and a bit warmer Monday afternoon and Monday night.
- highs 48-56 lows 32-34 cooling back to 32 Monday night.
- Patchy AM fog and freezing fog, partly cloudy and a bit warmer Tuesday afternoon, just mostly cloudy Tuesday night,
- Mostly cloudy with patchy AM fog, mostly cloudy and a bit warmer Wednesday afternoon, a (40%) chance of rain at night,
- AM rain likely (70%) Thursday, showers likely (70%) and a bit cooler in the afternoon and evening, rain likely (70%) at night and Friday AM, then a bit cooler with showers likely (70%) in the afternoon.
- highs 60-53 lows 37-43. (seasonal averages high 56 low 38)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with coastal showers likely (70%) and a slight (20%) chance of thunderstorms and a bit warmer today while inland scattered rain and snow showers likely (70%) and a bit warmer this afternoon (no snow accumulation expected, snow level 1,500 ft. rising to 2,00 ft. this afternoon), a (30%) chance scattered coastal showers tonight while a (30%) chance of evening inland scattered showers and a slight (20%) chance of inland rain and snow showers late tonight (under 0.10 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft. late),
- Mostly cloudy with a slight (20%) chance of coastal showers Sunday while a slight (20%) chance of inland AM rain and snow showers and a slight (20%) chance of inland showers Sunday afternoon (afternoon snow level 2,000 ft.) a slight (20%) chance of coastal showers at night while a slight (20%) chance of inland showers in the evening and just mostly cloudy inland late Sunday night,
- Mostly cloudy with a slight (20%) chance of AM coastal showers while patchy inland AM fog and freezing fog, then partly cloudy and a bit warmer Monday afternoon and at night.
- highs 48-53 lows 33-36.
- Patchy AM fog, partly cloudy and a bit warmer Tuesday, mostly cloudy Tuesday night,
- Patchy fog Wednesday AM, mostly cloudy in the afternoon, a good (50%) chance rain Wednesday night,
- Mostly cloudy with AM rain likely (60%) Thursday, showers likely (70%) in the afternoon, rain Thursday night and Friday AM, then showers Friday afternoon.
- highs 55-53 lows 40-45. (seasonal averages high 54 low 41)
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Forecast for the Cascades in Lane County:
- Mostly cloudy and a bit cooler with snow showers likely (70%) this afternoon and evening (1 in. of snow possible), a good (50%) chance of snow showers tonight (1 in. of snow possible),
- A mix of clouds and sun with a slight (20%) chance of AM snow showers, a bit warmer with a (30%) chance of snow showers Sunday afternoon, mostly cloudy and cold with a slight (20%) chance of snow showers Sunday night,
- Partly cloudy with a slight (20%) chance of snow showers and a bit warmer Monday afternoon, then just partly cloudy Monday night.
- snow level at the surface today through Sunday night, free air freezing level at the surface Monday, 4,000 ft. Monday night.
- highs 30-36 lows 18-22.
- Partly cloudy and a bit warmer Tuesday and Tuesday night,
- Mostly cloudy with a slight (20%) chance of rain and snow and a bit warmer Wednesday, a (40%) chance of rain and snow Wednesday night,
- A good (50%) chance of rain and snow and a bit cooler Thursday, rain likely (70%) with a good (50%) chance of snow at night,
- Then rain and snow likely (70%) and a bit cooler Friday.
- free air freezing level at the surface ft. Tuesday, 5,000 ft. Tuesday night, snow level 6,500 ft. Wednesday, snow level 5,000 ft. Wednesday night through Thursday night, then 4,000 ft. Friday.
- highs 40-38 warming back to 40 Friday lows 26-30.
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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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