Here is my weekly weather quiz question. What is the “Aleutian Low?” Please remember to post your answer at the bottom of this page. 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 controlling our weather for the near future. The graphic for days 1-3 shows the complex frontal system moving through the Pacific Northwest bringing more rain. Upper level HighPressure and surface high pressure combine to bring sunshine and dry us out. The graphic for days 3-7 shows that high pressure taking over for the weekend into the middle of next week keeping us dry for a while.  The next frontal system to attempt to bring us rain will arrive between next Wednesday and Thursday. 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 23 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 13 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: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• A COASTAL FLOOD ADVISORY IS IN EFFECT UNTIL 2 PM TODAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• FLOOD WARNINGS ARE IN EFFECT FOR THE COWLITZ RIVER AT KELSO, THE TUALATIN RIVER NEAR DILLEY, THE GRAYS RIVER NEAR ROSBURG, THE WILSON RIVER NEAR TILLAMOOK, THE LOWER NEHALEN RIVER NEAR FOSS, THE LUCKIAMUTE RIVER NEAR SUVER, THE SOUTH YAMHILL RIVER AT MCMINNVILLE, THE ROGUE RIVER NEAR AGNESS, THE MARYS RIVER NEAR PHILOMATH, THE PUDDING RIVER NEAR AURORA, THE COQUILLE RIVER AT COQUILLE, THE SOUTH FORK OF THE COQUILLE RIVER AT MYRTLE POINT, AND THE SPRAGUE RIVER NEAR BEATTY.
• 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 likely (70%) and cooler this afternoon (0.10 in. of rain possible), a good (50%) chance of scattered evening showers, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Saturday, partly cloudy in the evening, mostly cloudy with patchy fog late at night,
• Partly cloudy with patchy AM fog, mostly sunny and a bit warmer Sunday afternoon, then partly cloudy with patchy fog late Sunday night.
• highs 52-50 warming back to 52 Sunday lows 35-30 warming to 32 Sunday night.
• Patchy fog Monday AM, a mix of clouds and sun and a bit warmer in the  afternoon, partly cloudy with a patchy fog late Monday night,
• A mix of clouds and sun and a bit warmer Tuesday, becoming mostly cloudy with a slight (20%) chance of rain at night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Wednesday, then rain likely (70%) Wednesday night and Thursday.
• highs 53-56 lows 39-45. (seasonal averages high 50 low 35)

 

_____________________

Forecast for Roseburg:

• Showers and cooler this afternoon (0.25 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft. this afternoon),  a (40%) chance of rain and snow showers tonight (0.10 in. of rain possible, snow level 2,500 ft.),
• Just mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit warmer Saturday afternoon and in the evening, mostly clear at night,
• Partly cloudy with patchy fog and freezing fog Sunday AM, then partly cloudy and a bit warmer in the afternoon and Sunday night.
• highs 49-56 lows 36-34 warming to 38 Sunday night.
• Mostly cloudy and a bit warmer Monday through Tuesday, mostly cloudy with a slight (20%) chance of rain Tuesday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Wednesday, then rain likely (70%) Wednesday night and Thursday.
• highs 57-60 cooling back to 57 Thursday lows 42-47. (seasonal averages high 53 low 37)

 

________________

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

• Mostly cloudy with showers this afternoon while inland showers and a bit cooler today (0.25 in. of rain possible), mostly cloudy with a (40%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Saturday AM, just partly cloudy and a bit warmer in the afternoon and evening, mostly clear late at night,
• Patchy AM fog, partly cloudy and a bit warmer Sunday afternoon, partly cloudy Sunday night.
• highs 50-56 lows 38-42.
• Patchy AM fog, mostly cloudy and a bit warmer Monday through Tuesday, mostly cloudy with a slight (20%) chance of rain at night,
• Cloudy with a good (50%) chance of rain and a bit cooler Wednesday, then rain Wednesday night and Thursday.
• highs 57-59 cooling back to 57 Thursday lows 44-48. (seasonal averages high 52 low 40)

 

________________

 

Forecast for the Cascades in Lane County:

• Mostly cloudy and a bit cooler with rain and snow showers this afternoon (0.25 in. of rain possible, 1-4 in. of snow possible), cloudy with scattered evening snow showers likely (70%), a good (50%) chance of snow showers late tonight (0.10 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with a slight (20%) chance of AM snow showers, mostly cloudy and a bit cooler Saturday afternoon, just partly cloudy Saturday night,
• Mostly sunny in the AM, then partly cloudy and a bit warmer Sunday afternoon and Sunday night.
• snow level 3,500 ft. today, 2,500 ft. tonight and Saturday, free air freezing level 4,500 ft. Saturday night, 6,500 ft. Sunday, then 8,000 ft. Sunday night.
• highs 32-42 lows 22-19 warming back to 28 Sunday night.
• Mostly cloudy and a bit warmer Monday and at night,
• A mix of clouds and sun Tuesday, just partly cloudy Tuesday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of rain Wednesday, then rain likely (70%) at night and Thursday.
• free air freezing level 6,500 ft. Monday, 8,000 ft. Monday night, 7,500 ft. Tuesday, 9,000 ft. Tuesday night, snow level above 8,000 ft. Wednesday, 8,000 ft. Wednesday night, then 7,500 ft. Thursday.
• highs 43-40 lows near 34.

 

 

________________

 

**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.

________________