Jul
30.
Here is my weekly weather quiz question. “What is “Smog?”
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An Upper Level High Pressure Ridge (“Arch” shape) is moving closer to the coast to warm us up. The graphics for days 1-3 show no frontal systems pushing through Oregon. The graphics for days 3-7 Saturday through Wednesday show no frontal systems moving through the Pacific Northwest through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 27 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM THURSDAY FOR THE LOWER COLUMBIA RIVER, THE TUALATIN VALLEY, PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, INNER PORTLAND METRO, EAST PORTLAND METRO, OUTER SOUTHEAST PORTLAND METRO, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS, THE WEST COLUMBIA RIVER GORGE I-84 CORRIDOR, THE UPPER HOOD RIVER VALLEY, THE CENTRAL COLUMBIA RIVER GORGE I-84 CORRIDOR.
- AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR THE EASTERN COLUMBIA RIVER OF OREGON, WALLOWA COUNTY, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENNG FOR BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
- A HEAT ADVISORY IS IN EFFECT FROM 2 PM THURSDAY UNTIL 8 PM FRIDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR QUALITY ALERT IS IN EFFECT UNTIL 1 PM TODAY FOR KLAMATH COUNTY AND LAKE COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR DESCHUTES, GRANT, AND WHEELER COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR HARNEY, AND MALHEUR COUNTIES.
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:
- Sunny and warmer today and Thursday, mostly clear both nights,
- Mostly sunny and a bit cooler Friday, then partly cloudy Friday night.
- highs 93-99 cooling to 95 Friday lows 62-59.
- A mix of clouds and sun and a bit cooler Saturday, partly cloudy Saturday night,
- Sunny and a bit warmer Sunday and Monday, mostly clear both nights,
- Then sunny and a bit cooler Tuesday.
- highs 90-95 cooling to 94 Tuesday lows 59-55. (seasonal averages high 86 low 52)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: MODERATE (6)
TREES: ABSENT (0)
WEEDS: ABSENT (0)
Last Measured 7.29.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly sunny and warmer today, mostly clear tonight,
- Mostly sunny and a bit warmer (HOT) Thursday, mostly clear at night,
- Partly cloudy and a bit cooler Friday, then partly cloudy Friday night.
- highs 96-100 cooling to 97 Friday lows 66-64.
- Partly cloudy and a bit cooler Saturday, partly cloudy Saturday night,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Then mostly sunny Monday and Tuesday, mostly clear Monday night.
- highs 92-97 lows 64-62 (seasonal averages high 88 low 59)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Patchy inland AM and late night fog, sunny and a bit warmer today, mostly clear this evening, partly cloudy with patchy fog late tonight,
- Some AM clouds and hazy with patchy coastal fog while partly cloudy and hazy with areas of AM inland fog, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening with patchy coastal fog and mostly cloudy with patchy coastal fog late at night while partly cloudy in the evening and mostly cloudy with patchy inland fog late at night,
- Mostly cloudy with areas of AM fog, partly cloudy and a bit cooler Friday afternoon, then mostly cloudy with patchy fog late Friday night.
- highs 77-79 cooling to 74 Friday lows near 56.
- Patchy AM and late night fog, mostly cloudy Saturday, mostly cloudy Saturday night,
- Patchy AM and late night fog, partly cloudy Sunday and at night,
- Partly cloudy with patchy AM and late night fog, sunny Monday, mostly clear in the evening, partly cloudy late Monday night,
- Some AM clouds with patchy fog, then sunny Tuesday afternoon.
- highs near 75 lows near 54. (seasonal average high 67 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and warmer today, mostly clear tonight,
- Sunny and a bit warmer Thursday, mostly clear at night,
- Sunny and a bit cooler with a slight (20%) chance of thunderstorms Friday, partly cloudy with a slight (20%) chance of evening thunderstorms, mostly cloudy with a slight (20%) chance of thunderstorms Friday night.
- free air freezing level above 16,000 ft. today and tonight, 16,000 ft. Thursday, above 16,000 ft. Thursday night and Friday, then 16,000 ft. Friday night.
- highs near 80-89 cooling to 87 Friday lows 56-57.
- A mix of clouds and sun and a bit cooler Saturday, partly cloudy with a slight (20%) chance of thunderstorm Saturday night,
- Sunny Sunday, mostly clear at night,
- Sunny and a bit warmer Monday and Tuesday, mostly clear Monday night.
- free air freezing level 15,000 ft. Saturday through Sunday, then 16,000 ft. Sunday night through Tuesday.
- highs 82-84 lows near 55.
For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com