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 Monday through next Friday show a quiet weather pattern with a complex frontal system lingering offshore through Thursday and then pushing through Oregon next Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 24 in the good category measuring Ozone.
Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 25 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES
- A HEAT ADVISORY IS IN EFFECT FROM 2 PM SATURDAY UNTIL 11 PM SUNDAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
- A HEAT ADVISORY IS IN EFFECT FROM 2 PM SATURDAY UNTIL 8 PM MONDAY 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 NORTHERN OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY.
- A HEAT ADVISORY IS IN EFFECT FROM NOON SATURDAY UNTIL 11 PM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HEAT ADVISORY IS IN EFFECT FROM NOON SATURDAY UNTIL 11 PM SUNDAY FOR CENTRAL DOUGLAS COUNTY , EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES..
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:
- Mostly sunny and a bit warmer today, mostly clear tonight,
- Sunny and a bit warmer Saturday, clear at night,
- Sunny and a bit warmer, Hot, Sunday, then clear Sunday night.
- highs 83-93 lows 53-58.
- Mostly sunny and a bit cooler Monday with a slight (20%) chance of afternoon sprinkles, mostly clear with a slight (20%) chance of evening showers and thunderstorms Monday night,
- Mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights,
- Some AM clouds, then mostly sunny Thursday afternoon.
- highs 93-82 lows 55-53 warming back to 55 Wednesday night. (seasonal averages high 68 low 44)
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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, sunny and warmer today, mostly clear tonight,
- Sunny and a bit warmer Saturday, clear at night,
- Sunny and a bit warmer Sunday, then clear Sunday night.
- highs 85-97 lows 55-62.
- Mostly sunny and a bit cooler Monday, Tuesday, and Wednesday, mostly clear each night,
- Some AM clouds, then sunny and a bit cooler Thursday afternoon.
- highs 92-82 lows 58-56. (seasonal averages high 71 low 47)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds, sunny and a bit warmer today, mostly clear tonight,
- Sunny and warmer Saturday, clear at night,
- Sunny and warmer Sunday, then clear Sunday night.
- highs 66-87 lows 48-56 cooling to 54 Sunday night .
- Mostly sunny and a bit cooler Monday, mostly clear and a bit cooler Monday night,
- Partly cloudy and a bit cooler Tuesday, partly cloudy night,
- Then partly cloudy Wednesday through Thursday
- highs 70-66 lows near 50. (seasonal averages high 60 low 48)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit warmer today, mostly clear tonight,
- Sunny and a bit warmer Saturday, clear at night,
- Mostly sunny Sunday with a slight (20%) chance of afternoon sprinkles, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Sunday night.
- free air freezing level 11,000 ft. today, 12,000 ft. rising to 13,000 ft. late tonight, 13,000 ft. rising to 14,000 ft. Saturday afternoon, 14,000 ft. Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
- highs 64-72 lows 45-47.
- Mostly sunny with a (40%) chance of AM sprinkles, 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 and a slight (20%) chance of thunderstorms, just partly cloudy late Monday night,
- Mostly sunny and a bit warmer with a slight (20%) chance of sprinkles Tuesday afternoon, a slight (20%) chance of evening sprinkles, mostly clear late at night,
- Mostly sunny with a slight (20%) chance of sprinkles Wednesday afternoon, a slight (20%) chance of evening sprinkles, just mostly clear late Wednesday night,
- Mostly cloudy with a slight (20%) chance of showers Thursday afternoon.
- snow level above 8,000 ft. Monday through Thursday afternoon.
- highs near 72 lows near 45.