Dec
20.
An Upper Level High Pressure Ridge (“Arch” shape) is carrying a very strong Atmospheric River which will still dump rain on the Pacific Northwest. The graphics for days 1-3 show frontal systems that will move over the Pacific Northwest. The graphics for days 3-7 Wednesday through Sunday show a series of very active fronts sliding through the Pacific Northwest through the period producing lots of rain.
ADVISORIES:
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM SUNDAY UNTIL 4 AM MONDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A FLOOD WARNING IS IN EFFECT UNTIL TUESDAY EVENING FOR THE LUCKIAMUTE RIVER NEAR SUVER AFFECTING BENTON AND POLK COUNTIES, AND THE PUDDING RIVER AT AURORA AFFECTING MARION AND CLACKAMAS COUNTIES.
HEALTH ADVISORIES:
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT DUE TO A FOR WAPATO MARSH AT AT OAKS BOTTOM WILDLIFE REFUGE IN MULTNOMAH COUNTY. *PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, 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. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE WAPATO MASRSH TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING CYANOTOXINS.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR UPPER KLAMATH LAKE IN KLAMATH COUNTY E TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, 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. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT KLAMATH LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR HELLS CANYON RESERVOIR IN BAKER AND WALLOWA COUNTIES DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT HELLS CANYON RESERVOIR TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR OCHOCO LAKE IN CROOK COUNTY DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT OCHOCO LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT DUE TO A FOR BROWNLEE RESERVOIR IN BAKER COUNTY DUE TO THE SPREAD OF CYANOBACTERIA *PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE WILLAMETTE RIVER TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING CYANOTOXINS.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ECKMAN LAKE IN LINCOLN COUNTY DUE TO THE PRESENCE OF CYANOBACTERIA.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT ODEL LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING SAXITOXIN (PSP).
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR BULLY CREEK RESERVOIR IN MALHEUR COUNTY DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT BULLY CREEK RESERVOIR TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THIEF VALLEY RESERVOIR IN BAKER AND UNION COUNTIES DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THIEF VALLEY RESERVOIR TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR UPPER KLAMATH WILDLIFE REFUGE IN KLAMATH COUNTY DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, 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. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT UPPER KLAMATH WILDLIFE REFUGE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT DUE TO PRESENCE OF CYANOBACTERIA FOR THE SOUTH UMPQUA RIVER. *PEOPLE SHOULD AVOID POOLS OF WATER IN BEDROCK ALONG THE RIVER. AVOID WATER CONTACT, DO NOT DRINK THE WATER, AND KEEP CHILDREN AND PETS AWAY FROM THE POOLS OF WATER.
- 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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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 30 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 32 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with a good (50%) chance of showers tonight (0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM showers, a bit warmer with showers and a slight (20%) chance of thunderstorms Sunday afternoon (Winter Solstice 7:03 AM), showers with a slight (20%) chance of evening thunderstorm, showers late Sunday night,
- Mostly cloudy with showers and a bit warmer Monday, rain Monday night,
- Cloudy and a bit cooler with a good (50%) chance of rain Tuesday, then rain likely (70%) Tuesday night.
- lows 36-39 cooling to 37 Tuesday night highs 50-52 cooling to 48 Tuesday.
- Cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) of rain Wednesday afternoon, mostly cloudy with a good (50%) chance of rain Wednesday night (Christmas Eve),
- Mostly cloudy with a good (50%) chance of rain Thursday (Christmas Day), a good (50%) chance of rain and a slight (20%) chance of snow at night,
- A mix of clouds and sun with a (40%) chance of rain and snow and a bit cooler Friday, mostly cloudy with a (30%) chance of evening rain and snow, partly cloudy with a (30%) chance of rain and snow late Friday night,
- Then a mix of clouds and sun with a slight (20%) chance of rain and snow Saturday.
- highs 47-46 lows 34-32 (seasonal averages high 46 low 34).
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HOME WOOD HEATING ADVISORY:
EUGENE-SPRINGFIELD: GREEN – FIREPLACE AND WOOD STOVE BURNING IS ALLOWED.
OAKRIDGE: GREEN – FIREPLACE AND WOOD STOVE BURNING IS ALLOWED.
NOTE: Use of Pellet stoves is allowed all of the time.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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COLLEGE FOOTBALL PLAYOFF GAME FORECAST:
SATURDAY DECEMBER 20TH
Ducks vs. James Madison Dukes at Autzen Stadium- Game Time: 4:30 pm PST: Ducks easily defeated James Madison Dukes 51-34.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with rain tonight and patchy fog late tonight (evening snow level 3,000 ft.),
- Mostly cloudy with AM rain and patchy dense fog, patchy dense fog with showers and a bit warmer with a slight (20%) chance of thunderstorms Sunday afternoon (Winter Solstice 7:03 AM), evening showers and a slight (20%) chance of afternoon thunderstorms, rain with a slight (20%) chance of thunderstorms late Sunday night,
- Mostly cloudy with AM rain likely (70%), rain likely (70%) Monday afternoon, a good (50%) chance of evening rain and a slight (20%) chance of thunderstorms, a good (50%) chance of rain late at night,
- Cloudy and a bit cooler with a good (50%) chance of rain Tuesday, then a good (50%) chance of rain Tuesday night.
- lows 43-40 warming to 42 Tuesday night highs 52-50.
- Mostly cloudy and a bit cooler with a good (50%) chance of rain Wednesday, a good (50%) chance of rain Wednesday night (Christmas Eve),
- Mostly cloudy with rain likely (70%) and a bit warmer Thursday (Christmas Day), a good (50%) chance of evening rain, a good (50%) chance of rain and snow late at night,
- Mostly cloudy with a good (50%) chance of rain and snow Friday, a (40%) chance of evening rain, partly cloudy with a slight (20%} chance of rain and snow Friday night,
- Partly cloudy with a slight (20%) chance of of AM rain and snow, then partly cloudy and a bit warmer with a slight (20%) chance of rain Saturday afternoon.
- highs 47-48 lows 35-34 warming to 37 Friday night (seasonal averages high 48 low 36).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a good (50%) chance of early evening coastal rain with coastal rain likely (70%) with patchy fog late tonight while inland rain tonight with patchy fog,
- Mostly cloudy with patchy AM coastal fog with rain likely (70%) and a bit warmer with coastal showers and a slight (20%) chance of coastal thunderstorms Sunday afternoon while mostly cloudy and a bit warmer with fog Sunday (Winter Solstice 7:03 AM), patchy evening inland fog, showers and a slight (20%) chance of thunderstorms Sunday night,
- Mostly cloudy with AM rain likely (70%), showers likely (70%) with a slight (20%) chance of thunderstorms Monday afternoon and breezy (Coastal Wind: S 15-25 mph while Inland Wind: S 15-25 mph decreasing to S 10-15 mph in the afternoon), coastal showers likely (70%) with a slight (20%) chance of thunderstorms Monday night while inland evening showers with a slight (20%) chance of thunderstorms with inland rain likely (70%) late at night,
- Mostly cloudy with rain likely (70%) and a bit cooler Tuesday, then rain likely (70%) Tuesday night.
- lows 42-44 cooling back to 42 Tuesday night highs 55-54.
- Mostly cloudy with rain likely (70%) and a bit cooler Wednesday, rain likely (70%) Wednesday night (Christmas Eve),
- Mostly cloudy with rain likely (70%) Thursday (Christmas Day), rain likely (70%) at night,
- Mostly cloudy with a good (50%) chance of rain Friday, a (40%) chance of rain Friday night,
- Then partly cloudy and a bit warmer with a slight (20%) chance of rain Saturday.
- highs 52-53 lows 43-38 (seasonal averages high 53 low 40).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with rain and snow showers tonight (0.50 in. of rain possible, 1-4 in. of snow possible),
- Mostly cloudy and a bit warmer with rain and snow showers (0.50 in of rain possible, 1-4 in. of snow possible) Sunday (Winter Solstice 7:03 AM), snow showers and rain showers Sunday night (0.50 in. of rain possible, 3-7 in. of snow possible),
- Mostly cloudy and a bit cooler with snow and rain showers Monday, evening snow and rain likely (70%), a good (50%) chance of rain and snow late at night,
- Mostly cloudy and a bit warmer with snow likely (70%) and a (40%) chance of rain Tuesday, then rain and snow likely (70%) Tuesday night.
- highs 53-56 cooling to 52 Monday.
- snow level 3,500 ft. rising to 5,000 ft. late tonight, 5,000 ft. Sunday, 3,500 ft. Sunday night and Monday, 3,000 ft. Monday night, 3,500 ft. Tuesday, then 4,500 ft. Tuesday night.
- lows 20-27 cooling to 24 Monday night highs 36-34 warming to 35 Tuesday.
- Mostly cloudy and a bit warmer with snow and rain likely (70%) Wednesday, a good (50%) chance of snow and rain Wednesday night (Christmas Eve),
- Mostly cloudy with snow and rain likely (70%) and a bit warmer Thursday (Christmas Day), a good (50%) chance of snow and rain at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of snow and a slight (20%) chance of rain Friday, a (40%) chance of snow with a slight (20%) chance of rain Friday night,
- Then mostly sunny and a bit warmer with a slight (20%) chance of rain and snow Saturday.
- snow level 4,000 ft. Wednesday, 3,500 ft. Wednesday night, 4,000 ft. Thursday, 3,500 ft. Thursday night, then 3,000 ft. Friday through Saturday.
- highs 36-38 cooling to 35 Friday warming to 37 Saturday lows 26-23.
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