Here is my new weekly weather quiz question. What is a “Banner Cloud?” 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) will slowly migrate across Oregon. Marine clouds cooled us a bit Saturday. We warmed up a bit again Sunday. An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) moves up toward the coast allowing for more inland warming. The graphics for days 3-7 show the next frontal system approaching the Pacific Northwest and trying to move in Tuesday night into Wednesday. The 4th of July still looks bright and dry with temperatures in the mid to upper 80s. That’s a bit above normal.

 

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 11 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 19 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 12 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

•  A Health Advisory has been issued for Lake Billy Chinook, located 12 miles west of Madras in Jefferson County. Water monitoring has has confirmed the presence of Blue-green Algae and the toxins they produce. These toxin concentrations ca be harmful to humans and animals. People should avoid swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing or power boating, in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sensitivities may experience a puffy, red rash at the affected area. Drinking water directly from these areas of Lake Billy Chinook at this time is especially dangerous. Oregon public health officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• 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 sunny and a bit cooler this afternoon, mostly clear tonight,
• Patchy AM clouds, mostly sunny and a bit warmer Tuesday (Independence Day), clear at night,
• Patchy AM clouds, sunny and a bit warmer Wednesday, clear in the evening, then partly cloudy late Wednesday night.
• highs 82-87 lows 50-55.
• Partly cloudy Thursday AM, mostly sunny and a bit cooler in the afternoon, clear in the evening, partly cloudy late Thursday night and Friday AM, sunny and a bit cooler in the afternoon, clear at night,
• Mostly sunny and a bit cooler Saturday, then partly cloudy Saturday night and Sunday (a bit warmer).
• highs 85-82 warming to 84 Sunday lows near 53. (seasonal averages high 79 low 50)

_____

Eugene-Springfield Pollen Count

Grass………. High (100)

Trees………. Moderate (16)

Last Counted: 6/30/17

Data Courtesy of Oregon Allergy Associates.

 

________________

 

Forecast for Roseburg:

• Sunny and a bit cooler this afternoon, clear tonight,
• Sunny and a bit warmer Tuesday (Independence Day), clear at night,
• Mostly sunny with a slight (20%) chance of thunderstorms and a slight bit cooler Wednesday, mostly clear with a slight (20%) chance  of evening thunderstorms, then just mostly clear late Wednesday night.
• highs 84-87 lows 56-59.
• Mostly sunny and a bit warmer Thursday and Friday, mostly clear both nights,
• Mostly sunny and a bit cooler Saturday, partly cloudy Saturday night,
• Then partly cloudy and a bit cooler Sunday.
• highs 87-82 lows near 58. (seasonal averages high 81 low 55)

 

_____________________

 

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

• Sunny this afternoon, mostly clear this evening, partly cloudy late tonight and breezy (Wind: N 15-25 mph at the shore decreasing to N 10-15 mph late at night while N 10-15 mph inland decreasing to 5 mph late Monday night),
• Mostly cloudy with patchy AM coastal fog, sunny Tuesday afternoon (Independence Day),  clear in the evening, partly cloudy late at night,
• Sunny Wednesday, mostly clear with patchy fog late Wednesday night.
• highs near 64 lows 53-55.
• Partly cloudy with patchy fog Thursday AM, mostly sunny in the afternoon, mostly clear with patchy fog at night,
• Partly cloudy with patchy AM fog, mostly sunny Friday afternoon, then partly cloudy Friday night through Sunday.
• highs near 64 lows near 55. (seasonal averages high 64 low 52)

 

________________

Forecast for the Cascades in Lane County:

• Sunny and a bit cooler today, clear tonight,
• Mostly sunny and a bit warmer Tuesday (Independence Day), mostly clear at night,
• Sunny Wednesday AM, partly cloudy in the afternoon and Wednesday night.
• free air freezing level 15,000 ft. today through Wednesday, then 14,000 ft. Wednesday night.
• highs 75-80 lows 49-53 cooling to 50 Wednesday night.
• Partly cloudy Thursday and in the evening, clear at night,
• Sunny and a bit cooler Friday, clear Friday night,
• Sunny and a bit cooler Saturday, clear at night,
• Then sunny Sunday.
• free air freezing level 14,000 ft. Thursday, 14,000 ft. rising to 15,000 ft. Thursday night, 15,000 ft. Friday and Friday night, 15,000 ft. rising to 16,000 ft. Saturday,  then 16,000 ft. Saturday night and Sunday.
• highs 78-75 lows 52-48.

________________

**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.

_______________