Here is my weekly weather quiz question. What is  an“ Ashfall Advisory?” The first person to post the correct answer as a comment on this page 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) is moving away from us. Next an Upper Air High Pressure Ridge (Shaded “Arch” shape with blue arrows) takes over giving us a mostly dry Easter weekend. The graphic for days 1-3 shows no frontal systems to bring back the rain until late Sunday and Monday. The graphic for days 3-7 shows more frontal systems to bring back moisture next week. 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 9 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 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 FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 8 AM TODAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
• 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:

• Patchy AM fog, partly cloudy and a bit warmer this afternoon, mostly clear with patchy fog late tonight,
• Patchy AM fog, partly cloudy and a bit warmer with a slight (20%) chance of showers Sunday afternoon (Easter), becoming mostly cloudy with a (30%) chance of showers in the evening, a slight (20%) chance of showers late Sunday night,
• Cloudy and a bit cooler with a good (50%) chance of AM showers Monday, showers likely (70%) in the afternoon, then rain at night.
• highs 58-62 cooling back to 58 Monday lows 36-46.
• Mostly cloudy and a bit warmer with showers likely (70%) Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
• Mostly cloudy with rain likely (70%) Wednesday, cloudy with showers likely (70%) Wednesday night,
• A good (50%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers Thursday, night,
  Then just partly cloudy and warmer Friday.
• highs 58-65 lows near 42. (seasonal averages high 61 low 39)

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Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. Moderate (58)

Last Counted: 4/11/17

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Patchy AM fog, partly cloudy and a bit warmer this afternoon, mostly clear late tonight,
• Mostly cloudy with a slight (20%) chance of rain Sunday afternoon (Easter), becoming cloudy with a (40%) chance of showers Sunday night,
• Mostly cloudy and a bit cooler with a (40%) of AM showers, showers Monday afternoon, then rain at night.
• highs 62-58 lows 39-46.
• Mostly cloudy and a bit cooler with a (30%) chance of showers Tuesday, just mostly cloudy Tuesday night,
• Mostly cloudy and a bit cooler with rain likely (70%) Wednesday, showers likely (70%) Wednesday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Thursday, just party cloudy at night,
• Then mostly cloudy and warmer Friday.
• highs 60-67 lows 42-39. (seasonal averages high 62 low 42)

 

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

• Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer this afternoon, mostly clear this evening, partly cloudy late tonight,
• Mostly cloudy with a slight (20%) chance of coastal rain Sunday afternoon (Easter) while mostly cloudy with a slight (20%) chance of inland rain Sunday, a (30%) chance of coastal showers at night while a (30%) chance of inland evening showers,
• Mostly cloudy with showers Monday, then rain at night.
• highs 58-56 lows 40-48.
• Mostly cloudy with a (30%) chance of showers Tuesday, a slight (20%) chance of showers Tuesday night,
• Mostly cloudy with rain likely (70%) Wednesday, showers likely (70%) at night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Thursday, partly cloudy Thursday night,
• Then mostly cloudy Friday.
• highs 59-57 warming to 62 Friday lows 43-45 cooling to 40 Thursday night. (seasonal averages high 55 low 43)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy and a bit warmer today and tonight,
• Partly cloudy in the AM, becoming mostly cloudy and a bit cooler with a (40%) chance of rain and snow showers Sunday afternoon (Easter), evening showers likely (70%), increasing clouds to cloudy with a (40%) chance of showers Sunday night,
• Cloudy and a bit warmer with a (50%) chance of rain and snow showers Monday, then rain and snow at night.
• free air freezing level 4,500 ft. today, 7,000 ft. tonight, 6,000 ft. Sunday, then snow level 6,000 ft. Sunday night, then 5,500 ft. Monday and Monday night.
• highs 45-43 warming back to 45 Monday lows 30-32.
• Cloudy and a bit cooler with rain and snow showers likely (70%) Tuesday, partly cloudy with a slight (20%) chance of rain and snow showers Tuesday night,
• Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Wednesday, rain and snow showers likely (70%) at night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of rain and snow showers Thursday night,
• Then just partly cloudy and a bit warmer Friday.
•  snow level 5,000 ft. Tuesday through Wednesday night, 4,500 ft. Thursday, 5,000 ft. Thursday night, then free air freezing level 7,000 ft. Friday
• highs 40-43 cooling to 39 Thursday warming to 48 Friday lows near 30.

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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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