Here is my weekly weather quiz question. “What is a “Sea Breeze?”
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An Upper Level High Pressure Ridge (“Arch” shape) strengthens again over us bringing more sunshine and heat. The graphics for days 1-3 show no frontal systems near the Pacific Northwest. The graphics for days 3-7 Saturday through Wednesday show no frontal systems sliding into the Pacific Northwest through the period.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 19 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- AN EXCESSIVE HEAT WARNING IS IN EFFECT FROM NOON THURSDAY UNTIL 11 PM SUNDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE NORTHERN OREGON COAST RANGE, THE CENTRAL OREGON COAST RANGE, 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 OF OREGON ABOVE 500 FT., THE WEST COLUMBIA RIVER GORGE, THE I-84 CORRIDOR, THE UPPER HOOD RIVER VALLEY, THE CENTRAL COLUMBIA GORGE I-84 CORRIDOR, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS,.
- A HEAT ADVISORY IS IN EFFECT FROM 8 AM THURSDAY UNTIL 9 PM MONDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
- AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH TUESDAY EVENING FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT FROM 8 AM THURSDAY UNTIL 9 PM MONDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A RED FLAG WARNING IS IN EFFECT FROM 11 PM TODAY UNTIL 8 AM THURSDAY FOR GUSTY EAST WINDS AND POOR OVERNIGHT RELATIVE HUMIDITY RECOVERY FOR THE WESTERN SISKIYOU NATIONAL FOREST AND THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY.
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 a bit warmer today, clear tonight,
- Sunny and warmer (Very Warm) Thursday (Independence Day), mostly clear at night,
- Sunny and a bit warmer (HOT!) Friday, then clear Friday night.
- highs 83-102 lows 52-63.
- Sunny and a bit warmer (HOT!) Saturday, clear Saturday night,
- Sunny and a bit cooler (Still HOT!) Sunday, clear at night,
- Then sunny and a bit cooler Monday and Tuesday, clear Monday night.
- highs 105-94 lows 62-56 (seasonal averages high 80 low 50)
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EUGENE-SPRINGFIELD POLLEN COUNT:
GRASS: HIGH (79)
TREES: LOW (17)
WEEDS: LOW (2)
Measured 7.2.24
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Thursday (Independence Day), clear at night,
- Sunny and a bit warmer (HOT) Friday, then clear Friday night.
- highs 88-106 lows 57-66.
- Sunny and a bit warmer (HOT) Saturday, clear Saturday night,
- Sunny and a bit cooler (Still Hot) Sunday, clear at night,
- Then sunny and a bit cooler Monday and Tuesday, clear Monday night.
- highs 108-96 lows 65-62. (seasonal average high 82 low 55)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Sunny and a bit warmer today, mostly clear tonight,
- Sunny and a bit warmer Thursday (Independence Day), mostly clear at night,
- Sunny and a bit warmer Friday, then mostly clear Friday night.
- highs 73-83 lows 54-57.
- Mostly sunny and a bit cooler Saturday, Sunday, and Monday, mostly clear each night,
- Some AM clouds, then sunny and a bit cooler Tuesday afternoon.
- highs 79-72 lows 55-53. (seasonal average high 65 low 53)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, clear tonight,
- Sunny and warmer Thursday (Independence Day), mostly clear at night,
- Sunny and a bit warmer Friday, then clear Friday night.
- free air freezing level 15,000 ft. today, 16,000 ft. tonight and Thursday, then above 16,000 ft. Thursday night through Friday night.
- highs 75-92 lows 49-59.
- Sunny Saturday, clear Saturday night,
- Then sunny and a bit cooler Sunday, Monday, and Tuesday, clear Sunday night and Monday night.
- free air freezing level above 16,000 ft. Saturday through Monday night, then 16,000 ft. Tuesday.
- highs 92-86 lows 58-56.
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