Here is my new weekly weather quiz question. What is “An Arroyo?” 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) has taken control of our weather once again. The graphic for days 1-3 shows the front that moved through Oregon Sunday.  The graphic for days 3-7 shows the next complex frontal systems that will be moving into Oregon through next Sunday. 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 4 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 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 FLOOD WARNING IS IN EFFECT FOR THE COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH COUNTY.
• 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 showers and a bit warmer with sun breaks this afternoon  (0.10 in. of rain possible), a slight (20%) chance of showers this evening, just mostly cloudy tonight (0.10 in. of rain possible),
• Just mostly cloudy with sun peeks early and a bit warmer Tuesday, cloudy with a (40%) chance of evening rain, rain late at night (0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers likely (70%) and a bit cooler Wednesday afternoon and Wednesday night.
• highs 54-60 cooling back to 54 Wednesday lows 42-48 cooling back to 42 Wednesday night.
• Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers Thursday night,
• A mix of clouds and sun and a bit warmer Friday, partly cloudy at night,
• Mostly cloudy with a slight (20%) chance of rain Saturday and Saturday night,
• Then mostly cloudy with a (30%) chance of showers Sunday.
• highs 55-62 lows 38-42. (seasonal averages high 58 low 38)

_____

 

Eugene-Springfield Pollen Count:

Grass………. Low (0)

Trees………. Moderate (78)

Last Counted: 3/23/17

Data Courtesy of Oregon Allergy Associates.

_________________

 

Forecast for Roseburg:

• Cloudy with scattered showers and a bit cooler this afternoon (0.25 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft.), isolated evening showers,  just mostly cloudy late tonight and Tuesday (a bit warmer), cloudy with a (30%) chance of rain Tuesday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain likely (70%),  rain and a bit cooler Wednesday afternoon and evening, then showers likely (70%) late Wednesday night.
• highs 53-62 cooling to 58 Wednesday lows 42-47 cooling to 43 Wednesday night.
• Mostly cloudy with a showers likely  (70%) and a bit cooler Thursday, a slight (20%) chance of showers at night,
• Just partly cloudy and a bit warmer Friday and Friday night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Saturday, mostly cloudy at night,
• Then mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday.
• highs 54-62 cooling to 60 Saturday warming to 62 Sunday lows 38-42. (seasonal averages high 59 low 40)

 

_____________________

 

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

• Mostly cloudy and a bit cooler with scattered showers this afternoon (0.10 in. of rain possible), just cloudy tonight,
• Mostly cloudy and a bit warmer Tuesday, a (40%) chance of rain at night (0.10 in. of rain possible),
• Cloudy and a bit cooler with coastal rain Wednesday while AM inland rain likely (70%) and rain in the afternoon, then showers likely (70%) late Wednesday night.
• highs 53-56 cooling to 54 Wednesday lows 43 -50 cooling to 44 Wednesday night.
• Mostly cloudy with showers likely (70%) Thursday and a bit cooler, partly cloudy with a slight (20%) chance of showers Thursday night,
• Just mostly cloudy and a bit warmer Friday, partly cloudy at night,
• Mostly cloudy and a bit cooler with a slight (20%) chance of showers Saturday, mostly cloudy Saturday night,
• Then mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday.
• highs 55-58 lows 42-44. (seasonal averages high 54 low 42)

 

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit warmer with rain and snow showers decreasing this afternoon (0.25 in. of rain possible, 1-4 in. of snow possible), a (30%) chance of evening rain or snow showers, just mostly cloudy tonight,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, increasing clouds to cloudy with rain or snow likely (70%) late at night,
• Mostly cloudy with AM rain, showers and a bit cooler Wednesday, then showers Wednesday night.
• snow level 3,500 ft. today through Tuesday 4,,500 ft. Tuesday night, 7,000 ft. falling to 5,000 ft. Wednesday, then 4,500 ft. Wednesday night.
• highs 35-48 cooling to 44 Wednesday lows 27-35 cooling to 28 Wednesday night.
• Mostly cloudy and a bit cooler with showers likely (70%) Thursday, partly cloudy with a (40%) chance of showers Thursday night,
• Partly cloudy and a bit warmer Friday and at night,
• Mostly cloudy with a slight (20%) chance of rain and a bit warmer Saturday and Saturday night,
• Then mostly cloudy and a bit cooler with a (40%) chance of showers Sunday.
• snow level 3,500 ft. Thursday and Thursday night, free air freezing level 5,000 ft. Friday, 9,000 ft. Friday night, snow level 7,500 ft. Saturday and Saturday night, then 6,500 ft. Sunday.
• highs 42-49 cooling to 44 Sunday lows 25-30.

________________

**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.

________________