Jun
16.
Here is my weekly weather quiz question for the last time. What is a “Low Pressure System? ” Here is the correct answer. A Low Pressure System is an area of a relative pressure minimum that has converging winds and rotates in the same direction as the earth. This is counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Also known as an cyclone, it is the opposite of an area of high pressure, or a anticyclone.
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An Upper Level High Pressure Ridge (“Arch” shape) will keep temperatures at or a bit above normal. The graphics for days 1-3 show a cold front moving through the Pacific Northwest today and tonight. The graphics for days 3-7 Tuesday through Saturday show no major frontal systems moving into Oregon.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 21 in the Good category measuring Ozone.
Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 35 in the Good category measuring Ozone.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES
- NONE AT THIS TIME.
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 cloudy and cooler today, partly cloudy this evening, mostly cloudy late tonight,
- Mostly cloudy with a (40%) chance of AM rain, cooler Sunday afternoon (Father’s Day) with showers likely (70%) and a slight (20%) chance of thunderstorms, mostly cloudy with a good (50%) chance of showers at night,
- Mostly cloudy with AM showers likely (70%), showers with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (Juneteenth), then a good (50%) chance of showers Monday night.
- highs 72-58 lows near 46.
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Tuesday, a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
- Partly cloudy and warmer Wednesday (Summer Solstice 7:57 am), mostly clear at night,
- Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 63-79 cooling to 77 Friday lows 46-50. (seasonal averages high 74 low 48)
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Eugene-Springfield Pollen Count:
Grass Pollen: High (127)
Weeds: Low (3)
Tree Pollen: Low (10)
Last counted: 6.16.23
Data courtesy of Oregon Allergy Associates.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy and much cooler today, partly cloudy this evening, mostly cloudy with a slight (20%) chance of showers late tonight,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Sunday (Father’s Day), a (30%) chance of showers Sunday night,
- Mostly cloudy with AM showers likely (70%), a bit cooler with showers and a slight (20%) chance of thunderstorms Monday afternoon (Juneteenth), a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, then a slight (20%) chance of showers Monday night.
- highs 75-62 low 52-48.
- Mostly cloudy with a (30%) chance of showers and warmer Tuesday, partly cloudy Tuesday night,
- Partly cloudy and warmer Wednesday (Summer Solstice 7:57 am), mostly clear at night,
- Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 65-82 cooling to 80 Friday lows 49-55. (seasonal averages high 76 low 52)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy today, a slight (20%) chance of coastal showers tonight while mostly cloudy with a slight (20%) chance of inland showers late tonight,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Sunday (Father’s Day), a slight (20%) chance of evening coastal showers with coastal showers late at night while a (40%) chance of inland showers at night,
- Mostly cloudy with AM showers, showers with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon (Juneteenth), then a good (50%) chance of showers Monday night.
- highs 64-60 lows 49-47 warming back to 49 Monday night.
- Mostly cloudy and a bit warmer with a good (50%) chance of showers Tuesday, just mostly cloudy Tuesday night,
- Partly cloudy and a bit warmer Wednesday (Summer Solstice 7:57 am), partly cloudy at night,
- Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
- Then partly cloudy Friday.
- highs 62-67 lows 48-52. (seasonal averages high 63 low 51)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of showers and cooler today, a slight (20%) chance of evening rain, just mostly cloudy late tonight,
- Mostly cloudy with a good (50%) chance of AM rain and snow, cooler with a good (50%) chance of showers Sunday afternoon (Father’s Day), rain and snow showers likely (70%) at night,
- Mostly cloudy with rain and snow showers Monday with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon, evening rain and snow showers, then just mostly cloudy late Monday night.
- snow level above 8,000 ft. today, 4,500 ft. this evening, 4,500 ft. Sunday through Monday, then 5,000 ft. Monday night.
- highs 59-40 lows 34-30.
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers likely (70%) and a bit warmer Tuesday afternoon, a slight (20%) chance of evening showers, just partly cloudy late Tuesday night,
- Partly cloudy and warmer with a slight (20%) chance of showers Wednesday afternoon (Summer Solstice 7:57 am) and evening, just partly cloudy late at night,
- Partly cloudy and warmer with a (40%) chance of showers Thursday afternoon and evening, just partly cloudy late Thursday night,
- Then partly cloudy with a slight (20%) chance of showers Friday afternoon.
- snow level 5,500 ft. Tuesday, 6,500 ft. Tuesday night, 7,000 ft. Wednesday, snow level 8,000 ft. Wednesday night and Thursday, then above 8,000 ft. Thursday night and Friday.
- highs 47-64 lows 32-40.
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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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