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.

________________

 

An Upper Level High Pressure Ridge (Shaded “Arch” shape with blue arrows) took over briefly, now another Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) moves in. The graphic for days 1-3 shows the frontal system that’s moving into the Pacific Northwest from the Southwest. The graphic for days 3-7 shows a break from frontal storms until next Monday. For mountain snow conditions at the local ski areas check out their websites or give them a call.

 

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 33 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 17 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

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)

________________

Advisories:

• A WIND ADVISORY IS IN EFFECT THROUGH 5 AM WEDNESDAY JACKSON COUNTY.
• A WIND ADVISORY IS IN EFFECT FROM 8 PM TONIGHT UNTIL 8 AM WEDNESDAY FOR CENTRAL AND EASTERN LAKE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM WEDNESDAY ABOVE 5,000 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
• 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.

________________

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

• Mostly cloudy with rain tonight (0.50 in. of rain possible),
• Mostly cloudy with AM showers, rain and warmer Wednesday afternoon (0.25 in. of rain possible), evening rain, showers likely (70%) late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Thursday (0.25 in. of rain possible) and at night (10 in. of rain possible),
• Mostly cloudy with showers Friday, a (40%) chance of showers Friday night.
• lows 46-35 highs 57-55.
• A mix of clouds and sun and a bit warmer Saturday, partly cloudy Saturday night and Sunday, mostly cloudy with a (40%) chance of showers Sunday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Monday, then cloudy with a good (50%) chance of showers Monday night and Tuesday.
• highs 59-62 cooling back to 59 Monday lows 40-42. (seasonal averages high 60 low 39)

_____

 

Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. Very High (717)

Last Counted: 4/7/17

Data Courtesy of Oregon Allergy Associates.

_________________

 

Forecast for Roseburg:

• Cloudy with  a good (50%) chance of rain tonight (0.10 in. of rain possible),
• Rain likely (70%) Wednesday AM, rain and a bit warmer in the afternoon and evening, showers likely (70%) late Wednesday night (0.25 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft.),
• Mostly cloudy with AM rain and snow showers, showers and a bit cooler Thursday afternoon (0.25 in. of rain possible, snow level 3,000 ft.), evening showers likely (70%), rain and snow showers late Thursday night (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. at night),
• AM rain and snow showers likely (70%), showers likely (70%) Friday afternoon, then mostly cloudy with a slight (20%) chance of showers Friday night.
• lows 46-36 highs 57-53.
• Just mostly cloudy and a bit warmer Saturday and at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Sunday, a (40%) chance of showers Sunday night,
• Mostly cloudy with showers likely (70%) and a bit cooler Monday, cloudy with a (40%) chance of showers at night,
• Then showers likely (70%) and a bit cooler Tuesday.
• highs 59-62 cooling back to 59 Tuesday lows 40-45. (seasonal averages high 61 low 41)

 

_____________________

 

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

• Mostly cloudy with coastal rain tonight while inland evening rain with inland rain likely (70%) late tonight (0.25 in. of rain possible) and breezy (Wind: E 5-10 mph shifting and increasing to S 15-25 mph),
• Mostly cloudy and a bit warmer with coastal rain Wednesday while inland AM rain likely (7o%) and inland rain and a warmer in the afternoon (0.25 in. of rain possible), evening rain likely (70%), coastal showers with a slight (20%) chance of thunderstorms late Wednesday night while inland showers likely (70%) late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Thursday (0.25 in. of rain possible), cloudy with evening showers, coastal showers likely (70%) late at night while a good (50%) chance of inland rain late Thursday night (0.25 in. of rain possible),
• Mostly cloudy and a bit warmer with showers likely (70%) Friday, then mostly cloudy with a slight (20%) chance of showers at night.
• lows 47-40 highs 54-52 warming back to 54 Friday.
• Mostly cloudy and a bit armer Saturday, partly cloudy at night,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Saturday, just mostly cloudy at night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Sunday, cloudy with a (40%) chance of showers Sunday night,
• Then mostly cloudy with a good (50%) chance of showers and a bit cooler Monday, cloudy with a good (50%) chance of showers Monday night,
• Then showers likely (70%) Tuesday.
• highs 58-56 lows 42-47. (seasonal averages high 55 low 43)

 

________________

Forecast for the Cascades in Lane County:

• Cloudy with evening rain, rain and snow likely (70%) late tonight (0.10 in. of rain possible, no snow accumulation expected),
• Mostly cloudy with AM rain and snow showers, rain and snow and a bit warmer Wednesday afternoon (0.25 in. of rain possible, 1 in. of snow possible), evening rain and snow, rain and snow showers late Wednesday night (0.25 in. of rain possible, 1-3 in. of snow possible),
• Rain and snow showers and a bit cooler Thursday and at night,
• Mostly cloudy and a bit cooler with snow showers Friday, then mostly cloudy with a (40%) chance of rain and snow showers at night.
• snow level 6,000 ft. tonight , 5,000 ft. Wednesday, 4,500 ft. Wednesday night, 3,500 ft. Thursday, 3,000 ft. Thursday night, 2,500 ft. Friday, then 3,000 ft Friday night.
• lows 33-20 highs 45-38.
• A mix of clouds and sun and a bit warmer Saturday, mostly cloudy at night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain and snow showers Sunday,  cloudy with a good (50%) chance of rain and snow showers Sunday night,
• Mostly cloudy with a good (50%) chance of rain and snow showers Monday (a bit cooler) through Tuesday (a bit warmer).
• free air freezing level 4,000 ft. Saturday, 6,000 ft. Saturday night, snow level 5,500 ft. Sunday, snow level 6,000 ft. Sunday night, 5,000 ft. Monday, 5,500 ft. Monday night, then 4,500 ft. Tuesday.
• highs 48-42 warming to 45 Tuesday lows near 30.

________________

**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.

________________