Here is my weekly weather quiz question. What is  “Radar Reflectivity?” 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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An upper level low pressure trough (Shaded “U” shape with blue arrows) replaces high pressure. Rain returned as a frontal system marched across Oregon and is to our East now. By Easter Sunday a cold front will be passed us and we may see the showers drop off a bit late in the day. High pressure takes over for a while late Monday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 22 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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Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. High (159)

Last Counted: 3/23/16

Data Courtesy of Oregon Allergy Associates.

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

• Mostly cloudy with a good (50%) chance of scattered showers and a bit cooler today (under 0.10 in. of rain possible), partly cloudy this evening, becoming mostly cloudy with a slight (20%) chance of rain late tonight,
• Cloudy and a bit cooler with rain likely (70%) Saturday (0.10 in. of rain possible), rain in the evening, showers late Saturday night (0.20 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Easter Sunday afternoon (0.10 in. of rain possible), a good (50%) chance of showers with a slight (20%) chance of thunderstorms in the evening, a good (50%) chance of showers Sunday night.
• highs 56-53 lows 40-43 cooling to 38 Sunday night.
• Mostly cloudy with a good (50%) chance of showers Monday, partly cloudy with a (40%) chance of evening showers, just partly cloudy Monday night.
• Then mostly sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night.
• highs 53-63 lows near 38. (seasonal averages high 58 low 38).

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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 Roseburg:

• Mostly cloudy with a slight (20%) chance of morning showers, just mostly cloudy and a bit cooler this afternoon and tonight,
• Mostly cloudy with a slight (20%) chance of AM rain,  rain likely (70%) and a bit warmer Saturday afternoon and evening (under 0.10 in. of rain possible), showers likely (70%) late Saturday night (0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of AM showers, showers likely (70%) and a bit cooler Easter Sunday afternoon and in the evening, then rain and snow showers likely (70%) late Sunday night.
• highs 58-62 cooling to 54 Sunday lows 39-42 cooling back to 39 Sunday night.
• Mostly cloudy with rain and snow showers likely (70%) Monday, a slight (20%) chance of showers Monday night,
• Partly cloudy and a bit warmer Tuesday and at night,
• Then mostly sunny and a bit warmer Wednesday and Thursday, mostly clear Wednesday night,
• highs 55-65 lows 40-38 warming to 42 Tuesday night. (seasonal averages high 59 low 40).

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

• Mostly cloudy with a slight (20%) chance of showers today (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of rain late tonight,
• Cloudy and a bit warmer Saturday with coastal rain likely (70%) while a good (50%) chance of inland AM rain and inland rain likely (70%) in the afternoon (0.10 in. of rain possible), evening rain likely (70%), a good (50%) of showers late Saturday night (0.20 in. of rain possible),
• Mostly cloudy with AM showers, showers likely (70%) and a bit cooler Easter Sunday afternoon and evening, then showers likely (70%) and a slight (20%) chance of thunderstorms late Sunday night.
• highs 54-58 cooling back to 54 Sunday lows 45-42.
• Mostly cloudy with showers likely (70%) and a slight (120%) chance of thunderstorms Monday AM, showers likely (70%) in the afternoon, a slight (20%) chance of showers Monday night,
• Partly cloudy and a bit warmer Tuesday and at night,
• Sunny and a bit warmer Wednesday, mostly clear at night,
• Then mostly sunny Thursday.
• highs 54-62 lows 43-45. (seasonal averages high 54 low 42).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a (40%) chance of AM snow showers, a slight (20%) chance of rain and snow showers this afternoon, partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer with a slight (20%) chance of AM rain and snow, rain likely (70%) Saturday afternoon (0.10 in. of rain possible), rain in the evening, rain and snow showers late at night,
• Mostly cloudy and cooler with rain and snow showers Easter Sunday, evening rain and snow showers likely (70%), then snow showers likely (70%) late Sunday night.
• snow level 2,500 ft. today, free air freezing level 5,000 ft. tonight, 5,000 ft. rising to 6,500 ft. Saturday afternoon, 6,500 ft. falling to 5,500 ft. late Saturday night, then 3,000 ft. Sunday and Sunday night.
• highs 38-40 cooling to 36 Sunday lows 29-24.
• Mostly cloudy with snow showers likely (60%) and a bit cooler Monday, a good (50%) chance of rain and snow showers Monday night,
• Just partly cloudy and warmer Tuesday and Tuesday night,
• Then mostly sunny and a bit warmer Wednesday and Thursday, mostly clear Wednesday night.
• snow level 3,000 ft. Monday, 3,500 ft. Monday night, free air freezing level 4,500 ft. Tuesday, 6,000 ft. Tuesday night, 6,500 ft. Wednesday, then 7,500 ft. Wednesday night and Thursday.
• highs 34-48 lows 25-27.

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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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