Here is my weekly weather quiz question. What is a “Lightning Channel?
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An Upper Level High Pressure Ridge(“Arch” shape) takes over bringing a heat wave.. The graphics for days 1-3 show system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7 Sunday through next Thursday show a quiet weather pattern with a complex frontal system lingering offshore next Thursday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 28 in the good category measuring Ozone.
Oakridge: The Air Quality Index is 8 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
- AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH MONDAY EVENING FOR THE NORTH OREGON COAST, THE CENTRAL OREGON COAST, THE COAST RANGE OF NORTHWESTERN OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE NORTH OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE UPPER HOOD RIVER VALLEY, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA GORGE.
- A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY COUNTY UNTIL THIS MORNING DUE TO RAIN AND SNOW MELT.
HEALTH ADVISORIES:
- 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:
- Some AM clouds, sunny and a bit warmer this afternoon, partly cloudy tonight,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Sunny and a bit warmer Saturday, then clear Saturday night.
- highs 75-87 lows 47-57.
- Sunny and a bit warmer, Hot, Sunday, mostly clear Sunday night,
- Mostly sunny start, partly cloudy and a bit cooler Monday with a slight (20%) chance of afternoon showers, partly cloudy at night,
- Mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
- Some AM clouds, then mostly sunny and a bit cooler Wednesday afternoon.
- highs 93-82 lows 59-54. (seasonal averages high 67 low 43)
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Home Wood Heating Advisory:
Posted Daily
Eugene-Springfield: GREEN– Burning is Allowed.
Oakridge: GREEN– Burning is Allowed.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA
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Eugene-Springfield Pollen Count:
Grass Pollen: Moderate (12)
Tree Pollen: High (330)
Last counted: 5.8.23
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Some AM clouds with patchy fog, sunny and a bit warmer this afternoon, partly cloudy tonight,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Sunny and warmer Saturday, then clear Saturday night.
- highs 76-92 lows 50-60.
- Sunny and a bit warmer Sunday, mostly clear Sunday night,
- AM sun, partly cloudy and a bit cooler with a slight (20%) chance of of thunderstorms Monday afternoon, a slight (20%) chance of evening thunderstorms, mostly clear at night,
- Mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night,
- highs 97-84 lows 62-57. (seasonal averages high 70 low 47)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy start, sunny and a bit warmer this afternoon, mostly cloudy tonight,
- Some AM clouds, sunny and a bit warmer Friday, mostly clear at night,
- Sunny and warmer Saturday, then clear Saturday night.
- highs 63-80 lows 44-56.
- Sunny and warmer Sunday, mostly clear Sunday night,
- Mostly sunny and cooler Monday, partly cloudy and a bit cooler at night,
- Partly cloudy and a bit cooler Tuesday, partly cloudy Tuesday night,
- Then partly cloudy Wednesday.
- highs 87-66 lows 55-49. (seasonal averages high 60 low 47)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Partly cloudy and a bit warmer today, partly cloudy tonight,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Sunny and a bit warmer Saturday, then clear Saturday night.
- free air freezing level 8,000 fr. rising to 9,000 ft. this afternoon, 10,000 ft. tonight, 11,000 ft. Friday, 12,000 ft. Friday night, 13,000 ft. Saturday, then 14,000 ft. Saturday night.
- highs 60-72 lows 40-47.
- Sunny Sunday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Sunday night,
- AM sun, a mix of clouds and sun with a (40%) chance of showers and a slight (20%) chance of thunderstorms Monday afternoon, partly cloudy with a (40%) chance of evening showers, just partly cloudy at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of showers Tuesday afternoon, just partly cloudy late Tuesday night,
- Mostly sunny start, then partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon.
- free air freezing level 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night through Tuesday night.
- highs 72-70 warming back to 72 Tuesday and Wednesday lows 47-45.