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 through week into next weekend. The graphic for days 3-7 shows more frontal systems to bring us more rain Saturday 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 8 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:

• Partly cloudy tonight,
• Mostly cloudy with a (40%) chance of rain Wednesday AM, rain likely (70%) in the afternoon (0.25 in. of rain possible), evening rain, showers late Wednesday night (0.25 in. of rain possible).
• Mostly cloudy and a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Thursday (0.10 in. of rain possible), a slight (20%) chance of evening showers, just mostly cloudy at night,
• Then partly cloudy and a bit warmer Friday and at night.
• lows 40-44 cooling to 38 Thursday night warming to 45 Friday night highs 62-57 warming to 69 Friday.
• Mostly cloudy and a bit cooler with a (40%) chance of rain Saturday, a (30%) chance of showers Saturday night,
• Mostly cloudy and a bit cooler with a (40%) chance of showers Sunday, a slight (20%) chance of rain at night,
• Cloudy with a good (50%) chance of rain Monday, a (40%) chance of rain Monday night,
• Then mostly cloudy with a (30%) chance of showers Tuesday.
• highs 64-62 lows 46-44. (seasonal averages high 61 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 clear this evening, partly cloudy late tonight,
• Mostly cloudy with a slight (20%) chance of AM rain, rain and a bit cooler Wednesday afternoon (0.10 in. of rain possible), evening showers, showers likely (70%) late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy and a bit cooler with a good (50%) of showers Thursday (0.10 in. of rain possible), just mostly cloudy at night,
• Mostly cloudy with patchy AM fog, then partly cloudy and a bit warmer Friday and at night.
• lows 44-46 cooling to 42 Thursday night warming to 49 Friday night highs 60-58 warming to 73 Friday.
• Mostly cloudy with a slight (20%) chance of showers and a bit cooler Saturday, a slight (20%) chance of showers and a bit cooler Saturday night and Sunday, a slight (20%) chance of rain Sunday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Monday and at night,
• Then mostly cloudy with a (30%) chance of showers and a bit cooler Tuesday.
• highs 65-59 lows near 45. (seasonal averages high 63 low 42)

 

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

• Mostly clear this evening, partly cloudy late tonight,
• Mostly cloudy with a (40%) chance of of AM coastal rain with a slight (20%) chance of thunderstorms and coastal rain Wednesday afternoon with a slight (20%) chance of thunderstorms while a (30%) chance of inland AM rain and inland rain in the afternoon (0.25 in. of rain possible), coastal showers with a slight (20%) chance of thunderstorms Wednesday night while evening inland showers and inland showers likely (70%) late Wednesday night (0.25 in. of rain possible).
• Mostly cloudy with AM coastal showers likely (70%) and a good (50%) chance of coastal showers in the afternoon while a bit cooler with a good (50%) chance of inland showers Thursday afternoon (0.25 in. of rain possible), just mostly cloudy late Thursday night,
• Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer Friday afternoon and at night.
• lows 47-45 warming to 49 Saturday highs 58-56 warming to 70 Friday.
• Mostly cloudy with a (30%) chance of rain and a bit cooler Saturday, a slight (20%) chance of showers Saturday night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers and a bit cooler Sunday, a slight (20%) chance of rain at night,
• Then mostly cloudy and a bit cooler with a (30%) chance of rain Monday, cloudy with a (30%) chance of rain Monday night,
• Then mostly cloudy and a bit cooler with a (30%) chance of showers Tuesday.
• highs 60-56 lows 47-45. (seasonal averages high 55 low 43)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight and Wednesday AM, mostly cloudy and a bit warmer with rain and snow likely (70%) in the afternoon (0.10 in. of rain possible) and breezy (Wind: S 10-15 mph gusts to 30 mph increasing and shifting SW 15-25 mph gusts to 40 mph in the afternoon), evening rain and snow, rain and snow showers late at night (0.25 in. of rain possible, 1-4 in. of snow possible),
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Thursday, a (40%) chance of evening rain and snow showers, just partly cloudy late Thursday night,
• Then partly cloudy and a bit warmer Friday and Friday night.
• free air freezing level 7,000 ft. falling to 6,500 ft. late tonight, snow level 5,000 ft. Wednesday and Wednesday night, then 4,000 ft. Thursday, 4,500 ft. Thursday night,  free air freezing level 6,000 ft. Friday, then 9,000 ft. Friday night.
• lows 28-32 cooling to 24 Thursday night warming to 33 Friday night highs 47-42 warming to 52 Friday.
• Partly cloudy and a bit cooler with a slight (20%) chance of rain Saturday, mostly cloudy with a (30%) chance of showers Saturday night,
• A mix of clouds and sun and a bit warmer Sunday with (40%) chance of rain and snow showers, mostly cloudy with a slight (20%) chance of rain at night,
• Cloudy and a bit warmer with a (40%) chance of rain Monday, a (40%) chance of rain and snow Monday night,
• Then mostly cloudy and cooler with a (30%) chance of rain and snow showers Tuesday.
•  snow level 8,000 ft. Saturday, 7,000 ft. Saturday night, 5,500 ft. Sunday, 6,000 ft. Sunday night, 5,500 ft. Monday, then 5,000 ft. Monday night and Tuesday.
• highs 52-50 warming back to 52 Monday lows near 32.

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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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