Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/07/coffee-tea-or-me-or-cancer/
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Here is my new weekly weather quiz question. What is a “Flash Flood?” 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) slides in and takes over from weak high pressure that’s leaving and will cool us down just a bit. The graphics for Days 3-7 show a frontal system pushing through Thursday, then a break from disturbances.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 67 in the Moderate category measuring Ozone
Oakridge: The Air Quality Index is 30 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 74 in the Moderate category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A HEAT ADVISORY IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE EASTERN COLUMBIA RIVER GORGE.
- A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM TUESDAY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A HEAT ADVISORY IS IN EFFECT THROUGH 11 PM TONIGHT FOR CENTRAL DOUGLAS COUNTY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT THROUGH 11 PM TUESDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A HEAT ADVISORY IS IN EFFECT THROUGH 11 PM TUESDAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A RED FLAG WARNING IS IN EFFECT FROM 4 PM TUESDAY UNTIL UNTIL 8 PM WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON, AND THE LOWER COLUMBIA BASIN OF OREGON.
HEALTH ADVISORIES:
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ALL OF LAKE BILLY CHINOOK. THE LAKE IS LOCATED ABOUT 12 MILES WEST OF MADRAS, OREGON. WATER MONITORING HAS CONFIRMED THE PRESENCE OF CYANOBACTERIA AND THE TOXINS THEY PRODUCE IN THE METOLIUS, DDSCHUTES, AND CROCKED RIVER ARMS OF LAKE BILLY CHINOOK. THE CYNOTOXIN CONCENTRATIONS FOUND CAN BE HARMFUL TO HUMANS AND ANIMALS. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES LIKE WATER SKIING OR POWER BOATING IN AREAS OF THE LAKE WHERE CYNOTOXINS 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 THE LAKE IS ESPECIALLY DANGEROUS TOXINS CANNOT BE REMOVED BY ANY TECHNIQUE.
- 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:
- Clear tonight,
- Sunny and a bit cooler Tuesday, clear Tuesday night,
- Mostly sunny and a bit cooler Wednesday, mostly clear at night,
- Partly cloudy in the AM, mostly sunny and a bit cooler Thursday afternoon, then partly cloudy Thursday night.
- lows 54-52 highs 90-83.
- Partly cloudy and a bit warmer Friday and at night,
- Partly cloudy and a bit warmer Saturday and Saturday night,
- AM clouds, mostly sunny and a bit warmer Sunday afternoon, mostly clear at night,
- AM sun, then partly cloudy and a bit warmer Monday afternoon.
- highs 84-92 lows 50-54. (seasonal averages high 83 low 52)
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Eugene-Springfield Pollen Count
Grass………. High (33)
Trees………. Low (5)
Last Counted: 7/15/18
Data Courtesy of Oregon Allergy Associates
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Forecast for Roseburg:
- Mostly clear tonight,
- Sunny but just a bit cooler Tuesday and Wednesday, mostly clear both nights,
- Mostly sunny Thursday, mostly clear at night.
- lows 62-58 highs 96-93.
- Mostly sunny but just a bit cooler Friday and Saturday, mostly clear each night,
- Mostly sunny Sunday, mostly clear at night,
- Then mostly sunny and slightly warmer Monday.
- highs 88-90 lows 55-59. (seasonal averages high 85 low 57)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening at the shore and mostly cloudy with patchy coastal fog late tonight while mostly clear inland tonight,
- Partly cloudy with patchy AM fog, sunny and a bit warmer Tuesday afternoon, mostly clear in the evening, partly cloudy with patchy coastal fog late at night,
- Mostly cloudy with patchy AM fog, sunny Wednesday afternoon, mostly clear Wednesday night,
- Mostly sunny Thursday, then mostly clear at night.
- lows near 56 highs near 68.
- Some AM clouds, mostly sunny and a bit warmer Friday afternoon, mostly clear Friday night,
- Mostly sunny but a bit cooler Saturday, mostly clear at night,
- Then mostly sunny and bit cooler Sunday, mostly clear Sunday night,
- Then mostly sunny and a bit warmer Monday.
- highs 69-66 warming to 70 Monday lows near 54. (seasonal averages high 65 low 53)
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Forecast for the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights,
- Mostly sunny Thursday then partly cloudy at night.
- free air freezing level 15,000 ft. tonight and Tuesday, 16,000 ft. falling to 15,000 ft. Tuesday night, 16,000 ft. Wednesday, 15,000 ft. rising to 16,000 ft. Wednesday night, then 16,000 ft. Thursday and Thursday night.
- lows 52-56 cooling back to 52 Thursday night highs 80-77.
- Partly cloudy Friday AM, mostly sunny in the afternoon, partly cloudy Friday night,
- Partly cloudy and a bit warmer Saturday and Saturday night,
- AM clouds, mostly sunny Sunday afternoon, partly cloudy at night,
- Mostly sunny Monday AM, then partly cloudy Monday afternoon.
- free air freezing level 16,000 ft. Friday, 16,000 ft. falling to 15,000 ft. Friday night, 15,000 ft. Saturday and Saturday night, 15,000 ft. rising to 16,000 ft. Sunday, 16,000 ft. rising to above 16,000 ft Sunday night, then above 16,000 ft. falling to 16,000 ft. Monday.
- highs 76-82 lows 52-50 warming back to 52 Sunday night.
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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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