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 8 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 7 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:

• 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 a slight (20%) chance of showers this evening, just mostly cloudy late tonight,
• Mostly cloudy a bit warmer Tuesday, cloudy with a slight (20%) chance of evening rain, rain late at night (0.10 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Wednesday, showers Wednesday night,
• Mostly cloudy to start, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Thursday, then just partly cloudy Thursday night.
• lows 43-48 cooling to 38 Thursday night highs 60-55.
• 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:

• Cloudy tonight,
• Mostly cloudy and a bit warmer Tuesday, cloudy with a (30%) chance of rain late Tuesday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain likely (70%), rain and a bit cooler Wednesday afternoon, evening showers, showers likely (70%) late Wednesday night,
• Mostly cloudy with a good (50%) chance of AM showers, showers likely  (70%) and a bit cooler Thursday afternoon, a slight (20%) chance of evening showers, becoming partly cloudy late at night.
• lows 40-46 cooling to 38 Thursday night highs 62-54.
• 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 62-58 lows near 42. (seasonal averages high 59 low 40)

 

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

• Cloudy tonight,
• Mostly cloudy and a bit warmer Tuesday, cloudy with slight (20%) chance of evening coastal rain and rain likely (70%) at night while a good (50%) chance of inland rain late Tuesday night (0.10 in. of rain possible),
• Cloudy and a bit cooler with rain Wednesday, coastal evening showers with showers likely (70%) late at night while inland showers Wednesday night,
• Mostly cloudy with a good (50%) chance of showers and a bit cooler Thursday, then just partly cloudy at night.
• lows 43-48 cooling to 40 Thursday night highs 57-53.
• Mostly cloudy and a bit warmer Friday, partly cloudy 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 with a (30%) chance of evening showers then ending by late tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer Tuesday, increasing clouds to cloudy with a good (50%) chance of rain late at night (under 0.10 in. of rain possible),
• Mostly cloudy with rain Wednesday, showers Wednesday night,
• Mostly cloudy and a bit cooler with showers Thursday, a slight (20%) chance of evening showers, then just partly cloudy at night.
• snow level 4,000 ft. tonight, 4,500 ft. rising to 5,500 ft. Tuesday afternoon, 6,000 ft. Tuesday night, 7,500 ft. Wednesday, 6,500 ft. falling to 5,500 ft. late Wednesday night, 4,000 ft. Thursday, then 3,500 ft. Friday.
• lows 26-34 cooling to 25 Thursday night highs 46-40.
• 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 5,000 ft. Friday, 8,000 ft. Friday night, 9,000 ft. Saturday, snow level 7,500 ft. Saturday night, 7,000 ft. Sunday, 7,000 ft. 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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