Jul
17.
Here is my new weekly weather quiz question. What is “Model Output Statistics (MOS)? ”
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An Upper Level High Pressure Ridge (“Arch” shape) will continue the onshore airflow through the Pacific Northwest, then slow warming will take place. The graphics for days 1-3 show a weak disturbance (dashed line) moving through today helping to increase onshore airflow and cooling. The graphics for days 3-7 Thursday through Monday show a cold front pushing through Oregon between Friday and next Saturday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 30 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A RED FLAG WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 8 AM TUESDAY FOR EAST WIND WITH POOR OVERNIGHT RELATIVE HUMIDITY RECOVERY FOR THE WESTERN SISKIYOU NATIONAL FOREST AND THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY.
HEALTH ADVISORIES:
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE SOUTHERN PORTION OF UPPER KLAMATH LAKE, FROM HOWARD’S BAY SOUTH TO THE LINK RIVER DAM IN KLAMATH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE GALESVILLE RESERVOIR AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY.. SPRAYS 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:,
- Clear tonight,
- Sunny and a bit warmer Tuesday, clear Tuesday night,
- Sunny and a bit warmer Wednesday, mostly clear at night,
- Mostly sunny and a bit cooler Thursday, then clear Thursday night.
- lows 52-55 highs 88-92 cooling to 90 Thursday.
- Sunny Friday, clear Friday night,
- Sunny and a bit cooler Saturday, clear at night,
- Mostly sunny Sunday, clear Sunday night,
- Then sunny Monday.
- highs 90-87 lows near 53. (seasonal averages high 85 low 52)
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Eugene-Springfield Pollen Count:
Grass Pollen: Low (3)
Weeds: Low (3)
Tree Pollen: Absent (0)
Last counted: 7.16.23
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Clear tonight,
- Then sunny and a bit warmer Tuesday and Wednesday, clear both nights,
- Sunny and a bit warmer Wednesday, clear at night,
- Sunny Thursday, then clear Thursday night.
- lows 57-59 cooling back to 57 Thursday night highs 90-92.
- Sunny and a bit warmer Friday, clear Friday night,
- Sunny and a bit cooler Saturday, mostly clear at night,
- Sunny and a bit cooler Sunday, clear Sunday night,
- Then sunny and a bit warmer Monday.
- highs 94-90 warming to 92 Monday lows near 58 (seasonal averages high 87 low 58)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear this evening, mostly cloudy late tonight,
- Sunny and a bit warmer Tuesday, partly cloudy in the evening, mostly cloudy late Tuesday night,
- Some AM clouds, sunny and a bit cooler Wednesday afternoon, mostly clear in the evening, mostly cloudy late at night,
- Partly cloudy Thursday and in the evening, then mostly cloudy late Thursday night.
- lows 54-56 highs 73-70 warming to 72 Thursday.
- Some AM clouds, sunny and a bit warmer Friday afternoon, partly cloudy in the evening, mostly cloudy late Friday night,
- Some AM clouds, sunny Saturday, mostly clear in the evening, partly cloudy late at night,
- Then mostly sunny Sunday and Monday, mostly clear Sunday night.
- highs near 73 lows 56-54. (seasonal averages high 66 low 54)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Clear tonight,
- Sunny and a bit warmer Tuesday and Wednesday, clear both nights,
- Sunny and a bit cooler Thursday, then mostly clear Thursday night.
- free air freezing level 16,000 ft. tonight through Thursday, then 16,000 ft. Thursday night.
- lows 44-50 highs 79-83 cooling to 80 Thursday.
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Sunny and a bit cooler Saturday and Sunday, clear both nights,
- Then sunny Monday.
- free air freezing level 16,000 ft. Friday though Monday.
- highs 82-76 warming to 79 Monday lows 48-45.
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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
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