Here is my new weekly weather quiz question. What are “Sastrugi?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

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Another upper level high pressure ridge (Shaded “Arch” shape with blue arrows) will keep us warmer than normal for one more day today then upper level low pressure (Shaded “U” shape on previous graphic) starts taking over. A frontal system (shown out to the Northwest over the Pacific Ocean) will return the chance of showers by late today into Tuesday. By next Sunday another frontal system will be moving into the Pacific Northwest.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories: None At This Time.

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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.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• A mix of clouds and sun with a slight (20%) chance of showers and thunderstorms this afternoon, mostly cloudy with a (40%) chance of  showers and a slight (20%) chance of thunderstorms late tonight,
• Mostly cloudy with a (30%) chance of AM showers, mostly cloudy and a bit cooler Tuesday afternoon, cloudy with a good (50%) chance of showers at night,
• Then mostly cloudy and a bit cooler with showers likely (70%) Wednesday and Wednesday night.
• highs 80-63 lows 53-48.
• Cloudy with a (40%) chance of showers Thursday, mostly cloudy with a (40%) chance of evening showers,  just mostly cloudy at night,
• AM clouds,  partly cloudy and a bit warmer Friday and Friday night,
• AM clouds, Sunny Saturday afternoon, partly cloudy at night,
• Then AM clouds and partly cloudy and a bit cooler Sunday afternoon.
• highs 63-76 cooling to 72 Sunday lows 44-48. (seasonal averages high 64 low 41).

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Eugene-Springfield Pollen Count:

Grass………. Moderate (6)

Trees………. Moderate (38)

Last Counted: 4/26/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Becoming partly cloudy with a slight (20%) chance of thunderstorms this afternoon, mostly cloudy with a slight (20%) chance of thunderstorms this evening, a slight (20%) chance of showers late tonight,
• Mostly cloudy with a (20%) chance of AM showers, a bit cooler with a (30%) chance of showers and a slight (20%) chance of thunderstorms Tuesday afternoon, cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms in the evening, a good (50%) chance of showers late Tuesday night,
• Then mostly cloudy with showers likely (60%) Wednesday and Wednesday night.
• highs 85-62 lows 50-48.
• Cloudy with a good (50%) chance of showers Thursday, mostly cloudy with a (30%) chance of showers Thursday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Friday and Friday night,
• Then partly cloudy a bit warmer Saturday and Saturday night,
• Then partly cloudy with a slight (20%) chance of showers Sunday.
• highs 63-76 cooling to 73 Sunday lows 45-48. (seasonal averages high 67 low 45).

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

• Partly cloudy and cooler this afternoon and evening with a slight (20%) chance of inland thunderstorms, a slight (20%) chance of showers late tonight,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Tuesday, cloudy with a (40%) chance of showers Tuesday night,
• Mostly cloudy with showers likely (60%) and a bit cooler Wednesday, then cloudy with a (40%) chance of showers Wednesday night.
• highs 70-57 lows 52-48.
• Cloudy with a (40%) chance of showers Thursday, mostly cloudy with a slight (20%) chance of showers Thursday night,
• Just mostly cloudy Friday, partly cloudy Friday night through Saturday night,
• Then partly cloudy with a slight (20%) chance of showers  Sunday.
• highs 57-63 cooling to 60 Sunday lows 47-50. (seasonal averages high 57 low 45)

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Forecast for the Cascades in Lane County:

• Partly cloudy with a (40%) chance of showers and thunderstorms this afternoon (under 0.10 in. of rain possible, more in storms), mostly cloudy with a good (50%) chance of showers and thunderstorms this evening, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible, more in storms),
• Mostly cloudy and a bit cooler with a good (50%) chance of showers with a slight (20%) chance of thunderstorms Tuesday afternoon, cloudy with showers likely (60%) and a slight (20%) chance of thunderstorms in the evening, just cloudy late Tuesday night,
• Mostly cloudy and a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Wednesday afternoon, cloudy with showers likely (70%) and a slight (20%) chance of scattered thunderstorms in the evening, then a good (50%) chance of showers late at night.
• snow level above 9,000 ft. today through Tuesday night, then 8,000 ft. Wednesday and Wednesday night.
• highs 70-52 lows 42-35.
• Mostly cloudy with a (40%) chance of showers and a bit cooler Thursday and in the evening, a (40%) chance of showers late Thursday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Friday, partly cloudy with a slight (20%) chance of showers at night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Saturday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Saturday night,
• Then partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon.
• snow level 6,500 ft. Thursday and Thursday night, 8,000 ft. Friday, then above 8,000 ft. Friday night through Sunday.
• highs 48-63 lows 35-40.

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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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