An Upper Level High Pressure Ridge (“Arch” shape) Known as a “Omega Block” is keeping our weather pattern stuck for a while. The graphics for days 1-3 show the weak cold front that slipped under the ridge pushing into the Willamette Valley Wednesday and the next front that will move in Saturday night. The graphics for days 3-7 Monday through Friday show a complex frontal system moving into Oregon Monday, then another complex frontal system will be offshore next Friday.
_______________
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:
- A mix of clouds and sun and a bit warmer today, mostly cloudy tonight,
- A mix of clouds and sun and a bit cooler Saturday, mostly cloudy Saturday night,
- Mostly cloudy and a bit cooler with showers likely (70%) Sunday (Mother’s Day), then mostly cloudy with showers Sunday night.
- highs 74-64 lows 44-47 cooling to 45 Sunday night.
- Mostly cloudy and a bit cooler with showers likely (70%) Monday, mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, partly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms late Monday night,
- Mostly cloudy with a (40%) chance of AM showers, a mix of clouds and sun with a (40%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers at night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Wednesday, partly cloudy Wednesday night,
- Then a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Thursday.
- highs 62-66 cooling to 64 Wednesday night lows 43-45. (seasonal averages high 67 low 43).
_______________
HOME WOOD HEATING ADVISORY:
The Eugene & Springfield: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
Oakridge And Westfir: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
________________
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy and a bit warmer today, partly cloudy tonight,
- Partly cloudy and a bit cooler Saturday, then mostly cloudy at night,
- Mostly cloudy with a slight (20%) chance of AM rain, showers and cooler Sunday afternoon (Mother’s Day), then mostly cloudy with showers Sunday night.
- highs 80-67 lows 47-49 cooling back to 47 Sunday night.
- Mostly cloudy with showers and a bit cooler Monday, mostly cloudy with a (30%) chance of showers Monday night,
- Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy Tuesday afternoon and at night,
- Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Mostly cloudy start, then partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday afternoon.
- highs 64-69 cooling to 67 lows 48-46. (seasonal averages high 70 low 47).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy and a bit warmer today, mostly cloudy tonight,
- Mostly cloudy and a bit cooler Saturday, mostly cloudy at night,
- Mostly cloudy with a slight (20%) chance of AM rain, a (40%) chance of rain and a bit cooler Sunday afternoon (Mother’s Day), evening showers likely (70%), then Sunday night.
- highs 65-60 44-45 cooling back to 44 Sunday night.
- Mostly cloudy with AM showers, showers likely (70%) Monday afternoon, partly cloudy with a slight (40%) chance of evening showers , mostly cloudy with a slight (20%) chance of showers Monday night,
- Mostly cloudy and a bit warmer Tuesday and at night,
- Mostly cloudy Wednesday, mostly cloudy Wednesday night,
- Then mostly cloudy with a slight (20%) chance of showers Thursday.
- highs near 62 lows 44-45 cooling back to 44 Wednesday night.
- (seasonal averages high 60 low 47). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit warmer today, mostly cloudy tonight,
- A mix of clouds and sun and a bit cooler Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night.
- AM clouds and sun with a (30%) chance of AM with a good (50%) chance of rain and snow showers, mostly cloudy and cooler with a good (50%) chance of rain and snow showers Sunday afternoon (Mother’s Day), mostly cloudy with rain and snow showers Sunday night.
- free air freezing level 12,000 ft. today and tonight, 11,000 ft. Saturday, then snow level 7,000 ft. Saturday night, 6,000 ft. Sunday, then 5,000 ft. Sunday night.
- highs 65-70 cooling to 63 Saturday lows 43-32.
- Mostly cloudy and a bit cooler with rain and snow showers Monday, a good (50%) chance of rain and snow showers at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers Tuesday, a (40%) chance of rain showers and a slight (20%) chance of snow showers Tuesday night,
- Partly cloudy with a (30%) chance of rain showers and a slight (20%) chance of snow showers and a bit warmer Wednesday afternoon.
- snow level 6,000 ft. Sunday, 5,000 ft. Sunday night, 4,500 ft. Monday through Tuesday, then 5,500 ft. Tuesday night and Wednesday, then 6,500 ft. Wednesday night and Thursday.
- highs 50-42 warming to 46 Wednesday lows 34-32.