An Upper Level High Pressure Ridge (“Arch” Shape) take over beginning a warming trend. The graphics for days 1-3 show no frontal systems moving through the Pacific Northwest. The graphics for days 3-7 Tuesday through Saturday show a frontal system pushing into the Pacific Northwest Thursday and another front off shore next Saturday.
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ADVISORIES:
- NONE AT THIS TIME.
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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Sunday, clear Sunday night,
- Sunny and a bit warmer Monday, partly cloudy at night.
- highs 82-92 lows 53-57.
- Sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights,
- Sunny and a bit cooler Thursday, mostly clear Thursday night,
- Then sunny and a bit warmer Friday (Independence Day).
- highs 85-82 warming to 84 Friday lows 53-52. (seasonal averages high 78 low 50).
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy start, sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Sunday, clear Sunday night,
- Mostly sunny with a slight (20%) chance of thunderstorms and a bit cooler Monday afternoon, partly cloudy with a slight (20%) chance of thunderstorms at night.
- highs 87-93 cooling to 92 Monday lows 59-64. .
- Some AM clouds with a slight (20%) chance of thunderstorms, sunny and a bit cooler Tuesday afternoon, mostly clear Tuesday night,
- Mostly sunny and a bit cooler Wednesday, mostly clear at night,
- Some AM clouds, sunny and a bit cooler Thursday, mostly clear Thursday night,
- Then mostly sunny and a bit warmer Friday (Independence Day).
- highs 87-82 warming to 85 Thursday lows 58-56 (seasonal averages high 81 low 55).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds with patchy fog, sunny and a bit warmer this afternoon, mostly clear with patchy fog late tonight,
- Patchy AM and late night inland fog, sunny and a bit warmer Sunday, mostly clear in the evening, partly cloudy with patchy inland fog late Sunday night,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon and evening, just mostly cloudy late Monday night,
- highs 68-72 cooling to 67 Monday lows 56-52 warming to 55 Sunday night cooling to 54 Monday night.
- Mostly cloudy with patchy AM fog, sunny and a bit cooler Tuesday afternoon, partly cloudy Tuesday night,
- Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
- Partly cloudy sunny and a bit cooler Thursday, partly cloudy Thursday night,
- Then partly cloudy Friday (Independence Day).
- highs 65-67 cooling back to 65 Thursday and Friday lows 53-52.
- (seasonal averages high 65 low 52). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny today, clear tonight,
- Sunny and warmer Sunday, mostly clear Sunday night,
- Mostly sunny and warmer with a slight (20%) chance of thunderstorms Monday, then mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms at night.
- free air freezing level 14,000 ft. today and tonight, 15,000 ft. Sunday through Monday, then snow level above 8,000 ft. Monday night.
- highs 72-84 lows 45-54.
- Mostly sunny and a bit cooler with a slight (20%) chance of thunderstorms Tuesday, mostly clear with a slight (20%) chance of showers Tuesday night,
- Sunny and a bit cooler Wednesday and Thursday, mostly clear both nights,
- Then sunny Friday (Independence Day).
- free air freezing level 12,000 ft. Tuesday, snow level above 8,000 ft. Tuesday night, then free air freezing level 14,000 ft. Wednesday through Friday.
- highs 79-73 lows 49-56.