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) returns the clouds and chances for rain through week. The graphic for days 3-7 shows more frontal systems to bring us more rain Thursday through Monday. 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 6 in the Good category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 1 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 rain this evening, showers late tonight (0.25 in. of rain possible),
• AM showers likely (70%), a mix of clouds and sun and a bit warmer with a good (50%) chance of showers Tuesday afternoon, just partly cloudy at night,
• A slight (20%) chance of rain Wednesday AM, a mix of clouds and sun and a bit warmer with a good (50%) chance of rain in the afternoon, evening rain likely (70%), showers likely (70%) Wednesday night.
• Mostly cloudy and a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Thursday, then just mostly cloudy at night.
• lows 44-40 warming back to 44 Wednesday night cooling back to 40 Thursday night highs 62-60.
• Partly cloudy and a bit warmer Friday and at night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Saturday, partly cloudy with a slight (20%) chance of showers Saturday night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Sunday, mostly cloudy with a slight (20%) chance of rain at night,
• Then mostly cloudy and a bit warmer with a (40%) chance of rain Monday.
• highs 69-62 lows 45-43. (seasonal averages high 61 low 40)

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Eugene-Springfield Pollen Count:

Grass………. Low (2)

Trees………. Moderate (15)

Last Counted: 4/12/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Cloudy with evening showers, rain likely (70%) late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Tuesday afternoon, becoming mostly clear at night,
• Mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday, rain likely (70%) Wednesday night,
• Mostly cloudy with a (50%) chance of showers and  slight (20%) chance of thunderstorms Thursday AM, a bit cooler with a good (50%) chance of afternoon showers, partly cloudy in the evening, then just mostly cloudy late Thursday night.
• lows 47-42 warming back to 47 Wednesday night cooling to 39 Thursday night highs 63-59.
• Patchy AM fog, partly cloudy and a bit warmer Friday and at night,
• Mostly cloudy with a slight (20%) chance of showers and a bit cooler Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday, partly cloudy Sunday night,
• Then mostly cloudy and a bit cooler with a (30%) chance of rain Monday.
• highs 70-60 lows 44-42 . (seasonal averages high 63 low 42)

 

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

• Mostly cloudy with evening showers, coastal rain late tonight while inland rain likely (70%) late tonight (0.25 in. of rain possible),
• Mostly cloudy with a (40%) chance of AM showers, a bit warmer with a (40%) chance of showers Tuesday afternoon (0.10 in. of rain possible), mostly clear in the evening, partly cloudy late at night with a slight (20%) chance of coastal rain late Tuesday night,
• A (40%) chance of of AM coastal rain Wednesday with coastal rain likely (70% in the afternoon while a (40%) chance of inland rain Wednesday, evening coastal rain likely (70%) with coastal showers and a slight (20%) chance of thunderstorms late at night while inland rain likely (70%)  Wednesday night.
• Mostly cloudy with AM showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers and a bit cooler Thursday afternoon, just partly cloudy in the evening, then mostly cloudy late Thursday night.
• lows 49-43 highs 59-56.
• Patchy AM fog, partly cloudy and a bit warmer Friday, mostly cloudy Friday night,
• Mostly cloudy with a (30%) chance of showers and a bit cooler Saturday, partly cloudy at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers and a bit cooler Sunday, mostly cloudy Sunday night,
• Then mostly cloudy and a bit cooler with a (30%) chance of rain Monday.
• highs 66-57 lows near 45. (seasonal averages high 55 low 43)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with evening rain, showers late tonight (0.25 in. of rain possible),
• AM rain and snow showers likely (70%), mostly cloudy with showers likely (70%) and a (40%) chance of snow showers and a bit warmer Tuesday afternoon (0.25 in. of rain possible, 1 in. of snow possible), just partly cloudy at night,
• A mix of clouds and sun and a bit warmer with a (30%) chance of rain and a slight (20%) chance of snow Wednesday afternoon, evening rain and snow, rain and snow showers late at night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Thursday, then a slight (20%) chance of rain and snow showers Thursday night.
• snow level 6,000 ft. tonight, 5,500 ft. Tuesday, free air freezing level 6,000 ft. Tuesday night, snow level 5,000 ft. Wednesday and Wednesday night, 3,500 ft. Thursday, then 4,000 ft. Thursday night.
• lows 33-28 warming to 32 Wednesday night cooling to 26 Thursday night highs 46-44.
• Partly cloudy and a bit warmer Friday through Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
• Partly cloudy with a slight (20%) chance of rain Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
• Just partly cloudy and a bit cooler Sunday and at night,
• Then mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday.
•  free air freezing level 5,000 ft. Friday, 10,000 ft. Friday night, 9,000 ft. Saturday, snow level 6,500 ft. Saturday night, then free air freezing level 7,000 ft. Sunday, 8,000 ft. Sunday night, then snow level 7,000 ft. Monday.
• highs 52-50 warming back to 52 Monday lows 33-30.

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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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