Here is my weekly weather quiz question. What is “ Astronomical Dawn?”  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 blue arrows) continues to send us surface storms  into the weekend. The maps for today, Friday, and Saturday show the front that is moving through the Pacific Northwest and the next frontal system to bring us more rain Saturday. For mountain snow conditions at the local ski areas check out their websites or give them a call.

 

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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 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Home Wood Heating Advisory:

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:

• Permanent Health Advisory remains in effect for the South Umpqua River and Lawson 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 sun breaks and a good (50%) chance of showers and a slight (20%) chance of thunderstorms this afternoon (0.10 in. of rain possible, more in storms), partly cloudy with a slight (20%) chance of evening showers, mostly cloudy and colder with patchy fog late tonight and Friday AM, mostly sunny and warmer Friday, mostly cloudy late  at night,
• Mostly cloudy with patchy AM fog, a bit cooler with a good (50%) chance of showers Saturday afternoon and Saturday night.
• highs 58-69 cooling to 63 Saturday lows 38-45.
• A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Sunday, mostly cloudy with a (30%) chance of rain Sunday night,
• Mostly cloudy and a bit cooler with a rain likely (70%) Monday and Monday night,
• Cloudy with a good (50%) chance of showers and a bit warmer Tuesday, then mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday a bit cooler.
• highs near 58 lows near 45. (seasonal averages high 62 low 40)

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Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. Moderate (87)

Last Counted: 4/15/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly cloudy with a good (50%) chance of showers and a bit cooler this afternoon (0.10 in. of rain possible), just mostly cloudy in the evening, partly cloudy late tonight,
• Partly cloudy with patchy AM fog, sunny Friday afternoon, partly cloudy in the evening, mostly clear late at night,
• Mostly cloudy and cooler with a (30%) chance of showers Saturday and Saturday night.
• highs 58-73 cooling to 64 Saturday lows 42-47.
• Mostly cloudy with a good (50%) chance of showers and a bit cooler Sunday, a slight (20%) chance of rain Sunday night,
• Mostly cloudy and a bit cooler with rain likely (70%) Monday through Tuesday, a (40%) chance of showers Tuesday night,
• Then cloudy with a (40%) chance of showers Wednesday.
• highs 62-60 lows 44-47. (seasonal averages high 63 low 43)

 

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Forecast for The South Central Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with AM coastal showers likely (70%) and a slight (20%) chance of thunderstorms this afternoon while a good (50%) chance of showers inland and a bit cooler this afternoon (0.25 in. of rain possible), just mostly cloudy in the evening, partly cloudy tonight,
• Partly cloudy with patchy AM fog, sunny and warmer Friday afternoon, partly cloudy at night,
• Mostly cloudy with a (30%) chance of AM rain, a bit cooler Saturday with a good (50%) chance of showers in the afternoon, then a (40%) chance of showers Saturday night.
• highs 56-67 cooling to 58 Saturday lows 44-48.
• Mostly cloudy with a good (50%) chance of showers Sunday, a (30%) chance of rain at night,
• Mostly cloudy and a bit cooler with rain likely (70%) Monday and at night,
• Rain likely (60%) Tuesday, mostly cloudy with a (40%) chance of showers Tuesday night,
• Then cloudy with a (40%) chance of showers Wednesday.
• highs near 58 lows 46-48. (seasonal averages high 56 low 43)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow showers and a bit cooler this afternoon (0.25 in. of rain possible, 2 in. of snow possible), a (40%) chance of evening rain and snow showers, just partly cloudy late tonight,
• Mostly sunny and warmer Friday, partly cloudy at night,
• Mostly cloudy with a slight (20%) chance of AM rain, a bit cooler with a (40%) chance of showers Saturday afternoon, then a good (50%) chance of showers Saturday night.
• snow level 4,000 ft. today, 4,500 ft. tonight, free air freezing level 5,000 ft. rising to 8,000 ft. Friday afternoon, 10,000 ft. rising to 11,000 ft. late Friday night, snow level 7,500 ft. Saturday, then 6,000 ft. Saturday night.
• highs 43-56 cooling to 50 Saturday lows 27-33.
• A mix of clouds and sun and a bit cooler Sunday with good (50%) chance of rain and snow showers, mostly cloudy with a slight (20%) chance of rain and snow at night,
• Cloudy and a bit cooler with rain and snow likely (70%) Monday and Monday night,
• Mostly cloudy and warmer with rain and snow showers likely (70%) Tuesday and at night,
• Then mostly cloudy with a good (50%) chance of rain and snow showers Wednesday.
• snow level 5,000 ft. Sunday through Monday, then 5,500 ft. Monday night through Wednesday.
• highs 46-44 lows 32-34.

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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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