Here is my new weekly weather quiz question. What is  an“ Ashfall Advisory?” The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly sliding away from us. An Upper Level High Pressure ridge (Shaded “Arch” shape with blue arrows on previous graphic) will take over for a very short time tonight and early Tuesday, then another low moves in. The graphic for days 1-3 shows the next frontal system that will move into the Pacific Northwest late tonight into Monday. The graphic for days 3-7 shows the next complex frontal system that will be moving into Oregon in the middle of the week for Wednesday. 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 7 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 22 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)

________________

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 WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE NORTHERN OREGON CASCADES.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE OREGON CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL UNTIL 5 AM TODAY 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 sun breaks and a bit cooler with showers today (under 0.10 in. of rain possible), partly cloudy with a slight (20%) chance of showers this evening, just partly cloudy late tonight,
• Mostly cloudy Tuesday with a slight (20%) chance of rain and a bit warmer in the afternoon, rain at night (0.25 in. of rain possible) and Wednesday (a bit warmer), then showers likely (70%) Wednesday night.
• highs 53-57 lows 34-44 cooling to 42 Wednesday night.
• Mostly cloudy with showers likely (70%) and a bit cooler Thursday, a good (50%) chance of showers at night and Friday, a slight (20%) chance of showers Friday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday, just mostly cloudy at night,
• Then mostly cloudy and a bit cooler with a (40%) chance of rain Sunday.
• highs 56-58 lows 38-36 warming back to 38 Saturday night. (seasonal averages high 60 low 39)

_____

 

Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. High (160)

Last Counted: 4/4/17

Data Courtesy of Oregon Allergy Associates.

_________________

 

Forecast for Roseburg:

• Mostly cloudy with a (40%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit cooler this afternoon (under 0.10 in. of rain possible, snow level 2,500 ft. rising to 3,000 ft. this afternoon), just mostly cloudy tonight,
• Mostly cloudy with a (40%) chance of rain and a bit warmer Tuesday (under 0.10 in. of rain possible), evening rain, rain likely (70%) Tuesday night (0.25 in. of rain possible) and Wednesday AM, rain and a bit cooler in the afternoon, then rain likely (70%) Wednesday night.
• highs 56-60 lows 40-46 cooling to 42 Wednesday night.
• Mostly cloudy with showers and a bit cooler Thursday, a (40%) chance of evening showers, a (30%) chance of rain and snow showers late Thursday night and Friday (a bit warmer), cloudy with a slight (20%) chance of showers Friday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Saturday, just mostly cloudy at night,
• Then mostly cloudy with a (30%) chance of rain Sunday.
• highs 56-60 lows near 40. (seasonal averages high 61 low 41)

 

_____________________

 

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

• Mostly cloudy with a (40%) chance of showers and a bit cooler today (under 0.10 in.of rain possible), just mostly cloudy tonight,
• Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday (0.10 in. of rain possible), coastal evening rain and rain with a slight (20%) chance of thunderstorms late at night while rain inland Tuesday night (0.75 in. of rain possible) and breezy (Wind: NE 5 mph shifting E 5 mph late at night, then SE 15-25 mph toward morning),
•  Mostly cloudy with rain likely (70%) and a slight (20%) chance of  thunderstorms Wednesday AM, rain and a bit cooler in the afternoon and breezy, then rain likely (70%) Wednesday night.
• highs 54-57 lows 40-47 cooling to 44 Wednesday night.
• Mostly cloudy with showers and a bit cooler Thursday, mostly cloudy with a good (50%) chance of showers at night,
• Cloudy with a (40%) chance of showers and a bit warmer Friday, a slight (20%) chance of showers Friday night and Saturday (a bit warmer), just mostly cloudy at night,
• Then cloudy and a bit cooler with a (30%) chance of rain Sunday.
• highs near 56 lows near 42. (seasonal averages high 55 low 43)

 

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with rain and snow showers today (0.25 in. of rain possible, 1-4 in. of snow possible), a slight (20%) chance of evening snow showers, just partly cloudy and cold late tonight,
• Mostly cloudy and a bit warmer Tuesday with a good (50%) chance of rain and snow and a bit warmer in the afternoon, rain and snow and not as cold Tuesday night,
• Mostly cloudy with a good (50%) chance of AM rain and snow, rain and snow and a bit warmer Wednesday afternoon, then rain and snow showers at night.
• snow level 3,000 ft. today, 3,500 ft. tonight and Tuesday, 5,000 ft. Tuesday night, 5,500 ft. Wednesday, then 4,000 ft. Wednesday night.
• highs 37-45 lows 22-33 cooling to 30 Wednesday night.
• Mostly cloudy and a bit cooler with rain and snow showers Thursday, rain and snow showers likely (70%) at night,
• A (40%) chance of snow showers Friday, cloudy with a slight (20%) chance of rain and snow showers Friday night through Saturday night (a bit warmer Saturday),
• Then mostly cloudy and a bit cooler with a (40%) chance of rain and snow Sunday.
• snow level 3,500 ft. Thursday and Thursday night, 2,500 ft. Friday, 3,500 ft. Friday night, 3,000 ft. Saturday, then 5,500 ft. Saturday night and Sunday.
• highs 42-48 cooling to 44 Sunday lows 24-28.

________________

**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.

________________