Here is my new weekly weather quiz question. What is “An Arroyo?” The first person to post the correct answer 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) still has control of our weather . The graphic for days 1-3 shows the next front that’s headed our way midweek.  The graphic for days 3-7 shows the next complex frontal system that will be moving into Oregon next Sunday. 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 12 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 10 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:

• A FLOOD WARNING IS IN EFFECT FOR THE COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH COUNTY.
• A 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 possible sun peeks and a bit warmer this afternoon, cloudy with a slight (20%) chance of evening rain, rain late tonight (0.25 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Wednesday (0.50 in. of rain possible), showers Wednesday night tapering off late (0.25 in. of rain possible),
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Thursday (0.10 in. of rain possible), then just partly cloudy Thursday night.
• highs 60-55 lows 48-38.
• A mix of clouds and sun and a bit warmer Friday, partly cloudy at night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Saturday and Saturday night,
• A  (40%) chance of showers Sunday and Sunday night,
• Then a mix of clouds and sun with a (30%) chance of showers Monday.
• highs 60-57 lows 42-38. (seasonal averages high 58 low 38)

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Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. Moderate (78)

Last Counted: 3/23/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly cloudy and a bit warmer today, cloudy with a (30%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with AM showers, rain and a bit cooler Wednesday afternoon (0.25 in. of rain possible), evening rain, showers likely (70%) late Wednesday night (0.50 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, showers likely  (70%) and a bit cooler Thursday afternoon (0.10 in. of rain possible), a slight (20%) chance of evening showers, becoming partly cloudy late at night.
• highs 62-54 lows 46-38.
• Just partly cloudy and a bit warmer Friday and Friday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday and Saturday night,
• A bit cooler with a (30%) chance of showers Sunday and at night,
• Then mostly cloudy with a slight (20%) chance of showers and a bit cooler Monday.
• highs 62-64 cooling to 58 Monday lows 40-43 cooling back to 40 Sunday night. (seasonal averages high 59 low 40)

 

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

• Mostly cloudy and a bit warmer this afternoon, cloudy with a (30%) chance of showers tonight (0.10 in. of rain possible),
• Cloudy with AM coastal rain likely (70%) while a good (50%) chance in inland AM showers, rain and a bit cooler Wednesday afternoon (0.25 in. of rain possible) and in the evening and coastal showers likely (70%) late at night while inland showers late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers and a bit cooler Thursday (0.10 in. of rain possible), then just partly cloudy at night.
• highs 57-53 lows 48-40.
• Mostly cloudy and a bit warmer Friday and at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday and Saturday night,
• A bit cooler with a (30%) chance of showers Sunday and at night,
• Then mostly cloudy with a slight (20%) chance of showers and a bit cooler Monday.
• highs 58-55 lows near 45. (seasonal averages high 54 low 42)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit warmer this afternoon, increasing clouds to cloudy with a slight (20%) chance of evening rain, rain likely (70%) late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with rain Wednesday (0.75 in. of rain possible), evening rain, showers late Wednesday night,
• Mostly cloudy and a bit cooler with rain and snow showers Thursday, a slight (20%) chance of evening showers, then just partly cloudy at night.
• snow level 4,500 ft. rising to 6,000 ft. this afternoon, 6,500 ft. rising to 8,000 ft. tonight, 8,000 ft. Wednesday, 7,500 ft. falling to 6,000 ft. late Wednesday night, then 3,500 ft. Thursday and Thursday nighty.
• highs 45-47 cooling to 38 Thursday lows 36-25.
• Partly cloudy and a bit cooler Friday and at night,
• A mix of clouds and sun and a bit warmer Saturday, becoming mostly cloudy with a slight (20%) chance of showers Saturday night,
• Mostly cloudy and a bit cooler with a (40%) chance of showers Sunday and at night,
• Then a mix of clouds and sun with a (30%) chance of showers and a bit cooler Monday.
• free air freezing level 5,500 ft. Friday, 8,000 ft. Friday night, 9,000 ft. Saturday, snow level 7,500 ft. Saturday night, 7,000 ft. Sunday and Sunday night, then 6,000 ft. Monday.
• highs 49-45 lows 29-26.

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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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