Here is my new weekly weather quiz question. What is “Lake Effect Snow?
_________________
Another Upper Level Low Pressure Trough (“U” shape) is sending more moisture to the Pacific Northwest in the form of an Atmospheric River. The graphics for days 1-3 show the next fronts that are headed toward the Pacific Northwest. The graphics for days 3-7 Thursday through Monday show the series of complex frontal systems that will slide into the Pacific Northwest through the period.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 13 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
________________
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.
__________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:,
- Mostly cloudy and a bit cooler with rain today (1.00 in. of rain possible), rain tonight (0.50 in. of rain possible),
- Mostly cloudy with showers and a bit cooler Tuesday (0.10 in. of rain possible), showers likely (70%) late at night (0.10 in. of rain possible),,
- Mostly cloudy with a good (50%) chance of AM snow showers, a mix of clouds and sun and a bit warmer with a good (50%) chance of showers Wednesday afternoon (snow level 1,500 ft.), then partly cloudy with a slight (20%) chance of showers Wednesday night.
- highs 53-50 warming to 52 Wednesday lows 39-32.
- Partly cloudy with a slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Thursday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy Thursday night night,
- A mix of clouds and sun and a bit warmer Friday, partly cloudy at night,
- A mix of clouds and sun and a bit warmer Saturday, partly cloudy Saturday night,
- Clouds and sun with a slight (20%) chance of AM showers, then a mix of clouds and sun and a bit warmer with a (40%) chance of showers Sunday afternoon.
- highs 53-66 lows 32-40. (seasonal averages high 60 low 39)
__________
Home Wood Heating Advisory:
Posted Daily
Eugene-Springfield: GREEN– Burning is Allowed.
Oakridge: GREEN– Burning is Allowed.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA
__________
Eugene-Springfield Pollen Count:
Grass Pollen: Low (0)
Tree Pollen: Moderate (67)
Last counted: 4.7.23
Data courtesy of Oregon Allergy Associates.
__________
Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with rain and cooler today (0.25 in. of rain possible), evening showers, rain and showers likely (70%) and cooler late tonight (0.25 in. of rain possible, snow level 2,500 ft.),
- Mostly cloudy with AM rain and snow showers, a bit cooler with rain and showers likely (70%) Tuesday afternoon (snow level 2,000 ft.), rain and snow showers likely (70%) Tuesday night (snow level 2,000 ft. falling to 1,500 ft.),
- Mostly cloudy and a bit cooler with a good (50%) of rain and snow Wednesday, then just partly cloudy Wednesday night.
- highs 55-52 lows 40-34.
- Partly cloudy and a bit warmer Thursday, partly cloudy Thursday night,
- Partly cloudy Friday, mostly clear at night,
- Partly cloudy Saturday and Saturday night,
- Some AM clouds with a (30%) chance of AM rain, then mostly cloudy with a slight (20%) chance of rain Sunday afternoon.
- highs 55-69 lows 37-42. (seasonal averages high 62 low 42)
___________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with rain and cooler today (0.10 in. of rain possible), evening showers, showers likely (70%) and colder late tonight (0.50 in. of rain possible),
- Mostly cloudy with AM showers likely (70%), a bit warmer with a good (50%) chance of showers Tuesday afternoon (0.10 in. of rain possible, snow level 1,500 ft.), coastal Tuesday night while inland evening showers likely (70%) with inland showers and snow likely (70%) late Tuesday night (0.10 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft.),
- Mostly cloudy with a good (50%) chance of AM rain and snow showers, a slight (20%) chance of rain Wednesday afternoon, mostly clear in the evening, then becoming partly cloudy late Wednesday night.
- highs 48-52 lows 38-34.
- Mostly cloudy start, partly cloudy and a bit warmer Thursday afternoon, partly cloudy Thursday night,
- Partly cloudy and a bit warmer Friday and at night,
- Partly cloudy and a bit warmer Saturday and Saturday night,
- Then mostly cloudy with a (30%) chance of rain Sunday.
- highs 52-58 lows 36-39. (seasonal averages high 56 low 43)
__________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with rain today (0.25 in. of rain possible), snow and rain tonight ( 0.50 in. of rain possible, 1-3 in. of snow possible),
- Mostly cloudy with snow showers and colder Tuesday, snow showers at night,
- Mostly cloudy with AM snow showers likely (70%), a good (50%) chance of snow showers Wednesday afternoon, partly cloudy with a slight (20%) chance of evening snow showers, then just partly cloudy late Wednesday night.
- snow level above 8,000 ft. tonight and Monday, 5,000 ft. falling to 3,000 ft. Monday night, 2,500 ft. Tuesday, 2,000 ft. Tuesday night, at the surface Wednesday, then 1,500 ft. Wednesday night.
- highs 52-32 lows 25-19.
- AM clouds and sun with a slight (20%) chance of AM snow showers, a mix of clouds and sun with a slight chance of showers and snow showers and a bit warmer Thursday afternoon, partly cloudy with a slight (20%) chance of evening rain and snow showers, just partly cloudy late Thursday night,
- Partly cloudy and a bit warmer Friday, mostly clear at night,
- Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
- Then partly cloudy and a bit warmer with a slight (20%) chance of showers Sunday.
- snow level 2,000 ft. Thursday, 2,500 ft. Thursday night, free air freezing level 4,500 ft. Friday, 5,500 ft. Friday night, 7,500 ft. Saturday, 10,000 ft. Saturday night, then 6,000 ft. Sunday.
- highs 36-55 lows 22-32.
__________
For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com
__________
**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
_____
Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
________________