Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/06/this-one-burned-up-but-what-about-the-next-one/
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Here is my weekly weather quiz question. What is the “Exosphere?” 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.
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An Upper Level High Pressure Ridge (Shaded “Arch” shape with arrows) is moving eastward giving way to an upper level low pressure trough (Shaded “U” shape with arrows). The graphics for days 1-3 show the frontal system that moved through Wednesday. The graphics for days 3-7 show the weak surface disturbances that will approach and then move through the Pacific Northwest Saturday through next Wednesday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 21 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 19 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
HEALTH ADVISORIES:
- A RECREATIONAL HEALTH ADVISORY HAS BEEN ISSUED FOR DORENA RESERVOIR, LOCATED 6 MILES EAST OF COTTAGE GROVE IN LANE COUNTY. WATER MONITORING HAS CONFIRMED THE PRESENCE OF HARMFUL ALGAE ABOVE OREGON HEALTH AUTHORITY RECREATIONAL VALUES FOR CELL COUNTS. HARMFUL ALGAE AT THIS LEVEL ARE LIKELY TO BE ASSOCIATED WITH CYANOTOXIN CONCENTRATIONS THAT CAN BE HARMFUL TO HUMANS AND ANIMALS. RECREATIONAL VISITORS ARE ADVISED TO ALWAYS BE ALERT TO SIGNS OF HARMFUL ALGAE AND AVOID AREAS WITH VISIBLE SCUM THAT LOOKS FOAMY, THICK LIKE PAINT, PEA-GREEN, BLUE-GREEN, OR BROWNISH, OR WHERE SMALL BRIGHT-GREEN CLUMPS ARE FLOATING IN THE WATER. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE IDENTIFIED.
- A PUBLIC HEALTH ADVISORY HAS BEEN RE-ISSUED FOR DETROIT LAKE, LOCATED 46 MILES SE OF SALEM. THE LAKE SPANS BOTH LINN AND MARION COUNTIES. WATER MONITORING HAS CONFIRMED THE PRESENCE OF BLUE-GREEN ALGAE AND THE TOXINS THEY PRODUCE IN DETROIT LAKE. PEOPLE SHOULD AVOID SWALLOWING WATER, 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. ALSO KEEP PETS AWAY FROM THE WATER. THE SANTIAM RIVER DOWNSTREAM FROM DETROIT LAKE IS THE SOURCE OF DRINKING WATER FOR SEVERAL CITIES, INCLUDING THE CITY OF SALEM. ON JUNE 10TH THE CITY OF SALEM’S DRINKING WATER ADVISORY FOR BVULNERABLE POPULATIONS WAS EXTENDED FOR AT LEAST TWO MORE WEEKS. FOR MORE INFORMATION ON SALEM’S WATER ADVISORY GO TO HTTP://WWW.CITYOFSALEM.NET.
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy and warmer today and tonight,
- Partly cloudy Friday and at night,
- Partly cloudy Saturday AM, mostly sunny and a bit warmer with a slight (20%) chance of showers in the afternoon, then mostly clear Saturday night.
- highs 72-76 lows 48-52.
- Mostly sunny and a bit warmer Sunday and Monday, mostly clear both nights,
- Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear Tuesday night.
- highs 83-87 lows 52-55. (seasonal averages high 72 low 47)
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Eugene-Springfield Pollen Count
Grass………. High (126)
Trees………. Low (12)
Last Counted: 6/13/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- AM clouds, mostly sunny and a bit warmer this afternoon, partly cloudy this evening, mostly cloudy late tonight and Friday AM, partly cloudy and slightly cooler in the afternoon, mostly cloudy Friday night,
- Mostly cloudy Saturday AM, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Saturday afternoon, mostly clear in the evening, then partly cloudy with a slight (20%) chance of showers late at night.
- highs 75-73 warming to 78 Saturday lows 52-54.
- Partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Sunday and Sunday night,
- Partly cloudy and a bit warmer Monday and at night,
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Then mostly sunny and s bit cooler Wednesday.
- highs 82-89 cooling to 87 Wednesday lows near 57. (seasonal averages high 75 low 52)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- AM clouds, becoming mostly sunny and a bit warmer this afternoon, partly cloudy this evening, mostly cloudy late tonight,
- Mostly cloudy Friday AM, partly cloudy in the afternoon and at night,
- Then partly cloudy and a bit warmer Saturday and at night.
- highs near 65 lows 52-54.
- Partly cloudy and a bit warmer Sunday, mostly clear Sunday night,
- Mostly sunny and a bit cooler Monday, partly cloudy at night,
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- AM sun, then partly cloudy and a bit cooler Wednesday afternoon.
- highs 69-67 warming to 72 Tuesday cooling to 70 Wednesday lows near 56. (seasonal averages high 62 low 50)
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Forecast for the Cascades in Lane County:
- Partly cloudy this AM, mostly sunny and a bit warmer this afternoon, partly cloudy tonight,
- A mix of clouds and sun Friday, partly cloudy with a slight (20%) chance of showers Friday night,
- A good (50%) chance of showers Saturday AM, a mix of clouds and sun and a bit warmer with a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon, mostly cloudy with good (50%) chance of evening showers and thunderstorms, then a good (50%) chance of showers late at night.
- free air freezing level 11,000 ft. today through Friday, snow level 7,000 ft. Friday night, 8,000 ft. Saturday, then above 8,000 ft. Saturday night,
- highs 59-62 lows 37-42.
- A (40%) chance of rain Sunday AM, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and thunderstorms in the afternoon, mostly cloudy with a (40%) chance of evening showers and thunderstorms, partly cloudy with a slight (20%) chance of showers late Sunday night,
- Partly cloudy with a slight (20%) chance of showers Monday, a slight (20%) chance of evening showers, mostly clear late at night,
- Then mostly sunny and a bit warmer Tuesday and Wednesday, partly cloudy Tuesday night.
- snow level above 8,000 ft. Sunday through Monday evening, free air freezing level 12,000 ft. Monday night, 13,000 ft. rising to 14,000 ft. Tuesday afternoon, then 14,000 ft. Tuesday night and Wednesday.
- highs 66-72 lows 42-49.
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**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.
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