Here is my 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.

________________

An upper level low (Shaded “U” shape with blue arrows) brings onshore airflow and increased chances of wet weather. A surface frontal system has returned cooler air and the chance of showers. A high pressure ridge takes over keeping the rain away for a while starting Friday. A frontal system will be lurking just offshore Sunday morning, but it looks dry and should only cool us a bit for Mother’s Day.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

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

________________

Advisories: None At This Time.

________________

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).

________________

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

• Mostly cloudy and a bit cooler with showers likely (70%) today (under 0.10 in. of rain possible), cloudy with evening showers likely (60%), a (30%) chance of showers late tonight (0.10 in. of rain possible),
• Cloudy and a bit warmer with a slight (20%) chance of showers Thursday, mostly cloudy in the evening, partly cloudy late at night,
• Then partly cloudy and a bit warmer Friday and Friday night.
• highs 66-72 lows near 48.
• Mostly sunny and a bit warmer Saturday, partly cloudy Saturday night through Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs 77-69 warming to 72 Monday lows 48-44. (seasonal averages high 64 low 42).

_____

Eugene-Springfield Pollen Count:

Grass………. High (20)

Trees………. High (95)

Last Counted: 5/03/16

Data Courtesy of Oregon Allergy Associates.

___________________

Forecast for Roseburg:

• AM showers likely (60%), showers likely (70%) with a slight (20%) chance of thunderstorms and a bit cooler this afternoon and this evening (under 0.10 in. of rain possible), cloudy with showers likely (60%) late tonight (0.10 in. of rain possible),
• Cloudy with a (40%) chance of showers Thursday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Thursday night,
• Mostly cloudy in the AM,  partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Friday afternoon, then just partly cloudy Friday night.
• highs 66-75 lows 48-50.
• Partly cloudy a bit warmer Saturday through Monday (a bit cooler Sunday (Mother’s Day) and Monday), mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs 80-74  warming to 77 Tuesday lows 52-47. (seasonal averages high 67 low 45).

________________

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

• Mostly cloudy with showers likely (70%) and a bit cooler today (under 0.10 in. of rain possible), cloudy with a (40%) chance of coastal showers while inland showers likely (60%) tonight (under 0.10 in. of rain possible),
• Cloudy with a (40%) chance of showers and a bit warmer Thursday, just mostly cloudy Thursday night,
• AM and late night clouds otherwise  partly cloudy and a bit warmer Friday and Friday night.
• highs 58-65 lows 49-52.
• Sunny and a bit warmer Saturday, partly cloudy Saturday night,
• Mostly cloudy Sunday (Mother’s Day), partly cloudy Sunday night and Monday, mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs 67-63 warming to 65 Tuesday lows 52-49. (seasonal averages high 58 low 45)

________________

Forecast for the Cascades in Lane County:

• Cloudy with showers likely (60%) this AM, mostly cloudy and a bit cooler with showers and scattered thunderstorms this afternoon (0.25 in. of rain possible, more in storms), cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late tonight (0.25 in. of rain possible, more in storms),
• 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 (30%) chance of evening showers, just mostly cloudy Thursday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of afternoon showers Friday, partly cloudy with a slight (20%) chance of showers in the evening, then just partly cloudy late at night.
• snow level above 8,000 ft. today and tonight, 8,000 ft. Thursday and Thursday night, then above 8,000 ft. Friday and Friday night.
• highs 57-54 warming to 62 Thursday lows 38-42.
• Partly cloudy and a bit warmer Saturday and Saturday night,
• Mostly sunny in the AM, partly cloudy and a bit cooler Sunday afternoon (Mother’s Day), partly cloudy and a bit cooler Sunday night through Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• free air freezing level 12,000 ft. Saturday through. Sunday night, 11,000 ft. Monday, 12,000 ft. Monday night, then 11,000 ft. Tuesday.
• highs 65-58 warming to 63 Tuesday lows 40-37.

________________

**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.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________