Jul
01.
An Upper Level High Pressure Ridge (“Arch” Shape) is moving eastward with an Upper Level Low Pressure Trough (“U”shape) follows bringing cooling marine air our way. The graphics for days 1-3 show a frontal system moving through the Pacific Northwest for cooling. The graphics for days 3-7 Saturday through Wednesday show no frontal systems pushing into the Pacific Northwest during the period.
______________
ADVISORIES:
- A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY EFFECT FROM 2 PM UNTIL 9 PM TODAY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING ON DRY FUELS FROM 2 PM UNTIL 8 PM TODAY FOR THE KLAMATH BASIN, AND THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A RED FLAG WARNING IS IN EFFECT FOR LIGHTING FROM NOON MDT UNTIL MIDNIGHT MDT FOR THE BURNS BLM, SOUTHERN GRASSLANDS, CENTRAL CANYONLANDS, NORTHWESTERN VALE BLM, AND THE BAKER VALLEY.
HEALTH ADVISORIES:
- A RECREATION HEALTH ADVISORY HAS BEEN ISSUED FOR LAKE BILLY CHINOOK, PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES SUCH AS WATER SKIING OR POWER BOATING IN AREAS WHERE BLOOMS ARE PRESENT AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER, OREGON HEALTH OFFICIALS SAID. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, THOUGH THOSE WITH SKIN SENSITIVITIES MAY DEVELOP A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGED PEOPLE TO VISIT LAKE BILLY CHINOOK FOR ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- 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.
_______________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 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 52 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
_______________
Eugene-Springfield Area Pollen count:
GRASS: 51 HIGH
TREES: 2 LOW
WEEDS: 0 LOW
Measured 7.1.25
Data courtesy of Oregon Allergy Associates.
_______________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and cooler today, mostly clear this evening, partly cloudy late tonight,
- AM clouds and sun, sunny and a bit cooler Thursday afternoon, mostly clear at night,
- Mostly sunny Friday (Independence Day), then mostly clear Friday night.
- highs 83-80 lows 53-49.
- Sunny and a bit warmer Saturday, clear Saturday night,
- Sunny and a bit warmer Sunday, clear at night,
- Sunny and a bit warmer Monday, mostly clear Monday night,
- Then sunny and a bit warmer Tuesday.
- highs 82-87 lows 49-52. (seasonal averages high 80 low 50).
________________
Forecast for the Umpqua Valley including Roseburg:
- Mostly sunny and a bit cooler today, mostly clear this evening, partly cloudy late tonight,
- AM clouds, sunny and a bit cooler Thursday, mostly clear at night,
- Some AM clouds, sunny and a bit cooler Friday (Independence Day), then mostly clear Friday night.
- highs 86-80 lows 57-52. .
- Mostly sunny and a bit warmer Saturday, clear Saturday night,
- Sunny Sunday, clear and a bit warmer at night,
- Sunny and a bit warmer Monday, mostly clear Monday night,
- Then mostly sunny Tuesday.
- highs 84-93 lows 54-62 (seasonal averages high 82 low 55).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy AM fog, sunny and a bit warmer this afternoon, mostly cloudy with patchy fog late tonight,
- AM clouds and patchy fog, sunny and a bit cooler Thursday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late Thursday night,
- AM clouds and patchy fog, sunny Friday afternoon (Independence Day), mostly clear at night.
- highs 70-69 cooling back to 69 Thursday lows 53-49.
- Mostly sunny and a bit warmer Saturday, mostly clear Saturday night,
- Mostly sunny and a bit warmer Sunday, mostly clear at night,
- Some AM clouds, sunny Monday afternoon, partly cloudy Monday night,
- Then partly cloudy Tuesday.
- highs 70-72 lows 50-52.
- (seasonal averages high 65 low 53). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and cooler today, mostly clear this evening, partly cloudy late tonight,
- Sunny and a bit cooler Thursday, partly cloudy at night,
- Mostly sunny and a bit warmer Friday (Independence Day), then mostly clear Friday night.
- free air freezing level 14,000 ft. today, 14,000 ft. falling to 13,000 ft. tonight, 13,000 ft. falling to 12,000 ft. Thursday afternoon, 12,000 ft. Thursday night, 11,000 ft. Friday, then 12,000 ft Friday night.
- highs 73-66 lows 44-42.
- Sunny and a bit warmer Saturday and Sunday, mostly clear both nights,
- Then sunny and a bit warmer Monday and Tuesday, mostly clear Monday night,
- free air freezing level 12,000 ft. Saturday, 13,000 ft. Saturday night, 14,000 ft. Sunday, then 15,000 ft. Sunday night and Monday.
- highs 70-84 lows 44-54.
______