Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/06/mother-nature-just-couldnt-wait-for-the-starting-gun/
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Here is my weekly weather quiz question for the last time. What is an “Evaporimeter?” Here is the correct answer. An Evaporimeter: In hydrologic terms, an instrument which measures the evaporation rate of water into the atmosphere. I’ll have a new weekly weather quiz question for you starting Monday. 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 Low Pressure Trough (Shaded “U” shape with arrows) is moving down from the Gulf of Alaska and has brought a change in our weather pattern to cloudier, much cooler, and wet. The graphics for days 1-3 show the frontal system that moved through Friday ushering in the rain and cooler temperatures. The graphics for days 3-7 show the frontal systems that will approach and then move through the Pacific Northwest Wednesday and Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 25 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 5 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 27 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM SUNDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
HEALTH ADVISORIES:
- A PUBLIC HEALTH ADVISORY IS IN EFFECT 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.
- 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:
- Mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of showers late tonight (0.10 in. of rain possible, more in storms),
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Sunday (0.10 in. of rain possible) and in the evening, a slight (20%) chance of showers late at night (under 0.10 in. of rain possible),
- AM clouds, a mix of clouds and sun and a bit warmer Monday afternoon, mostly clear Monday night,
- AM sun, partly cloudy and a bit warmer Tuesday afternoon and evening, then mostly cloudy with a slight (20%) chance of showers late Tuesday night.
- lows 44-46 cooling back to 44 Monday night warming to 48 Tuesday night highs 64-78.
- A mix of clouds and sun with a slight (20%) chance of showers and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers at night,
- A mix of clouds and sun and a bit cooler Thursday with a slight (20%) chance of showers, partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late Thursday night,
- A mix of clouds and sun and a bit warmer Friday, then partly cloudy Friday night and Saturday.
- highs 70-69 warming to 77 Saturday lows 48-46 warming back to 48 Friday night. (seasonal averages high 72 low 47)
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Eugene-Springfield Pollen Count
Grass………. High (50)
Trees………. Low (7)
Last Counted: 6/8/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Mostly cloudy with a slight (20%) chance of isolated thunderstorms this evening, scattered showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with a (30%) chance of scattered showers and a bit warmer Sunday (under 0.10 in. of rain possible) a slight (20%) chance of showers Sunday night (under 0.10 in. of rain possible),
- AM clouds, becoming mostly sunny and much warmer Monday afternoon, mostly clear late Monday night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, then partly cloudy with a slight (20%) chance of showers late at night.
- lows 46-52 highs 64-84.
- Partly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday and Wednesday night,
- Mostly cloudy with a slight (20%) chance of a showers Thursday and at night,
- Mostly cloudy in the AM, partly cloudy and a bit warmer Friday afternoon, then partly cloudy and a bit warmer Friday night and Saturday.
- highs 74-83 lows near 50. (seasonal averages high 74 low 51)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with evening showers, scattered showers late tonight (0.10 in. of rain possible),
- Mostly cloudy with scattered AM showers, slightly warmer with a slight (20%) chance of showers Sunday afternoon (under 0.10 in. of rain possible), a (30%) chance of showers Sunday night (under 0.10 in. of rain possible),
- Mostly cloudy Monday AM, clearing to mostly sunny and a bit warmer in the afternoon, mostly clear Monday night,
- Sunny and a bit cooler Tuesday, mostly clear in the evening, then mostly cloudy with a slight (20%) chance of showers late at night.
- lows 50-52 cooling back to 50 Monday night warming back to 52 Tuesday night highs 62-66.
- Mostly cloudy with a slight (20%) chance of showers and a bit cooler Wednesday and Wednesday night,
- A slight (20%) chance of showers Thursday AM, mostly cloudy in the afternoon and at night,
- Mostly cloudy Friday, partly cloudy Friday night and Saturday AM, then sunny and a bit warmer Saturday afternoon.
- highs 62-67 lows near 50. (seasonal averages high 61 low 50)
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Forecast for the Cascades in Lane County:
- Mostly cloudy with rain and snow showers and a (40%) chance of thunderstorms this evening, rain and snow showers late tonight (0.25 in. of rain possible, 2-4 in. of snow possible),
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, a bit warmer with a good (50%) chance of rain and snow showers Sunday afternoon (0.10 in. of rain possible, 1 in. of snow possible), a (30%) chance of evening showers, a slight (20%) chance of showers late Sunday night (under 0.10 in. of rain possible),
- AM clouds and sun, mostly sunny and much warmer Monday afternoon, mostly clear at night,
- Mostly sunny and much warmer Tuesday, partly cloudy with a slight (20%) chance of showers late Tuesday night.
- snow level 4,500 ft. tonight and Sunday, 6,000 ft. Sunday night, free air freezing level 7,000 ft. rising to 10,000 ft. Monday afternoon, 11,000 ft. rising to 12,000 ft. late Monday night, then 13,000 ft. Tuesday and Tuesday evening, then snow level 8,000 ft. late Tuesday night.
- lows 32-42 highs 44-70.
- Partly cloudy with a slight (20%) chance of showers and a bit cooler Wednesday and at night,
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
- A mix of clouds and sun and a bit warmer Friday, then partly cloudy and a bit warmer Friday night and Saturday.
- snow level above 8,000 ft. Wednesday, above 8,000 ft. falling to 7,000 ft. Wednesday night, 7,500 ft. Thursday evening, free air freezing level 10,000 ft. late Thursday night, 10,000 ft. rising to 11,000 ft. Friday, then 11,000 fry. Friday night and Saturday.
- highs 62-57 warming to 65 Saturday lows 38-40.
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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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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