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 Wednesday. 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 19 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 30 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 13 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 a (40%) chance of rain this AM, rain likely (70%) this afternoon (0.25 in. of rain possible), evening rain, showers late tonight (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.
• highs 62-57 warming to 69 Friday lows 44-38 warming to 45 Friday night .
• 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 cloudy with a slight (20%) chance of AM rain, rain and a bit cooler this afternoon (0.10 in. of rain possible), evening showers, showers likely (70%) late tonight (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.
• highs 60-58 warming to 73 Friday lows 46-42 warming to 49 Friday night.
• 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 cloudy with a (40%) chance of of AM coastal rain with a slight (20%) chance of thunderstorms and coastal rain this afternoon with a slight (20%) chance of thunderstorms while a (30%) chance of inland AM rain and inland rain this afternoon (0.25 in. of rain possible), coastal showers with a slight (20%) chance of thunderstorms tonight while evening inland showers and inland showers likely (70%) late tonight (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.
• highs 58-56 warming to 70 Friday lows 47-45 warming to 49 Saturday.
• 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 this AM, mostly cloudy and a bit warmer with rain and snow likely (70%) this 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 tonight (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.
• snow level 5,000 ft. today and tonight, then 4,000 ft. Thursday, 4,500 ft. Thursday night,  free air freezing level 6,000 ft. Friday, then 9,000 ft. Friday night.
• highs 47-42 warming to 52 Friday lows 32-24 warming to 33 Friday night .
• 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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