Here is my weekly weather quiz question for the last time. What is “The Pacific Decadal Oscillation “? Here is the correct answer. The Pacific Decadal Oscillation(Abbrev. PDO) – is a recently described pattern of climate variation similar to ENSO though on a timescale of decades and not seasons. It is characterized by SST anomalies of one sign in the north-central Pacific and SST anomalies of another sign to the north and east near the Aleutians and the Gulf of Alaska. It primarily affects weather patterns and sea surface temperatures in the Pacific Northwest, Alaska, and northern Pacific Islands.
_________________
An Upper Level Low Pressure Trough (“U” shape) is sitting along the coast. The graphics for days 1-3 show the cold front moving through the Pacific Northwest. The graphics for days 3-7 Wednesday through Sunday show a frontal system moving through Tuesday and more frontal activity Saturday and next Sunday as a backdoor cold front move in from the north.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 29 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 127 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 8 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
________________
ADVISORIES:
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM TODAY FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM TODAY ABOVE 3,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM TODAY ABOVE 2,000 FT. FOR THE NORTHERN CASCADE FOOTHILLS OF OREGON AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM TODAY ABOVE 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY ABOVE 3,500 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY.
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH THIS AFTERNOON FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
HEALTH ADVISORIES:
- A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT BEVERLY BEACH IN LINCOLN COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIL THE ADVISORY IS LIFTED. UNSAFE LEVELS OF FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. CHILDREN, THE ELDERLY, AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO TO ILLNESSES FROM WATERBORNE BACTERIA. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
- A RECREATIONAL USE HEALTH ADVISORY HAS BEEN EXPANDED FOR THE AREA FROM THE ROSS ISLAND LAGOON TO RIVERPLACE MARINA IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS CATCH AND RELEASE FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS. DRINKING WATER FROM THE LAKE IS ESPECIALLY DANGEROUS.
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER FROM ROSS ISLAND DOWNSTREAM (NORTH) TO THE AREA NEAR CATHEDRAL PARK IN PORTLAND, IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.DO NOT DRINK THE WATER.
- A RECREATIONAL USE HEALTH ADVISORY CONTINUES IN EFFECT FOR ARRONS LAKE, BUT HAS BEEN LIFTED FOR PETE’S SLOUGH AND STURGEON LAKE ON SAUVIE ISLAND DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR AGENCY LAKE AND EXTENDED THE ADVISORY FOR THE SOUTHERN PORTION OF UPPER KLAMATH LAKE, FROM HOWARD’S BAY SOUTH TO THE LINK RIVER DAM IN KLAMATH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS 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.
__________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with a good (50%) chance of showers today (0.10 in. of rain possible), rain tonight (0.25 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Monday (0.25 in. of rain possible), rain (0.25 in. of rain possible) and windy at night (Wind: S 15-20 mph gusts to 35 mph increasing and shifting to SW 25-30 mph gusts to 45 mph late at night),
- Mostly cloudy with AM rain and a slight (20%) chance of thunderstorms, showers and breezy and a bit cooler Tuesday afternoon, rain with a slight (20%) chance of evening thunderstorms, then rain late Tuesday night.
- highs 46-50 lows 38-43 cooling back to 36 Tuesday night.
- Mostly cloudy and a bit cooler with rain Wednesday, rain Wednesday night,
- Mostly cloudy with rain and snow Thursday, evening rain and snow likely (70%), a slight (20%) chance of rain and snow late at night,
- Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow Friday and in the evening, snow likely (70%) late Friday night,
- Then mostly cloudy and a bit warmer with rain and snow likely (70%) Saturday.
- highs 44-42 warming back to 44 Saturday lows 35-33 warming back to 35 Friday night. (seasonal averages high 47 low 35)
_________
Home Wood Heating Advisory:
Eugene-Springfield: GREEN- Burning wood in wood stoves or fireplaces is allowed.
Oakridge: GREEN- Burning wood in wood stoves or fireplaces is allowed.
*Pellet stoves can be used anytime since they don’t produce the particulate smoke.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
_________
Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with AM rain and snow showers, a good (50%) chance of rain and snow showers and a bit cooler this afternoon (0.10 in. of rain possible, snow level 2,000 ft. rising to 2,500 ft. in the afternoon), cloudy with evening rain and snow showers likely (70%), rain and snow late tonight (under 0.10 in. of rain possible, snow level 2,000 ft., little or no snow accumulation expected),
- Mostly cloudy with rain and a bit warmer Monday (0.10 in. of rain possible), rain (0.25 in. of rain possible) and windy Monday night (Wind: S 10-15 mph increasing to S 20-30 mph late at night),
- Mostly cloudy with AM rain and a slight (20%) chance of thunderstorms, rain snow with a slight (20%) chance of thunderstorms and a bit cooler Tuesday afternoon and windy, then rain and snow Tuesday night.
- highs 46-49 cooling to 47 Tuesday lows 40-44 cooling to 38 Tuesday night.
- Mostly cloudy with rain and snow and a bit cooler Wednesday, rain and snow Wednesday night,
- Mostly cloudy with rain and snow Thursday, evening rain and snow likely (70%), a good (50%) of rain and snow at night,
- Mostly cloudy with a (40%) chance of rain and snow Friday and in the evening, rain and snow likely (70%) late Friday night,
- Then mostly cloudy and a bit warmer with rain and snow likely (70%) Saturday.
- highs 43-45 lows near 35. (seasonal averages high 49 low 37).
___________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with AM showers, showers likely (70%) and a bit warmer this afternoon (0.10 in. of rain possible), cloudy with coastal rain tonight while inland evening rain likely (70%), rain late tonight (0.10 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Monday (0.25 in. of rain possible), rain (0.25 in. of rain possible) and windy Monday night (Wind: S 10-20 mph increasing and shifting to SW 20-30 mph gusts to 45 mph late at night),
- Mostly cloudy with rain and a bit cooler Tuesday and windy, then rain Tuesday night.
- highs 52-56 cooling to 54 Monday lows 40-44 cooling back to 40 Tuesday night.
- Mostly cloudy with rain and a bit cooler Wednesday, rain Wednesday night,
- Mostly cloudy with rain Thursday, rain likely (70%) at night,
- Mostly cloudy with a good (50%) chance of rain Friday, a good (50%) chance of evening rain, rain likely (70%) late Friday night,
- Then mostly cloudy with rain likely (70%) Saturday.
- highs near 52 lows near 38. (seasonal averages high 53 low 41)
__________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy and a bit cooler with snow showers today (1-4 in. of snow possible), snow tonight,
- Mostly cloudy with snow and rain and a bit warmer Monday, rain at night with snow late and very windy (Pass Wind: SW 15-20 mph gusts to 35 mph increasing to SW 30-40 mph gusts to 60 mph late),
- Mostly cloudy with AM rain and snow and a slight (20%) chance of thunderstorms, a bit cooler with snow showers and a slight (20%) chance of thunderstorms Tuesday afternoon (afternoon snow possibly heavy at times) and very windy, then snow (possibly heavy at times) Tuesday night.
- snow level 2,000 ft. today and tonight, 3,000 ft. rising to 5,000 ft. Monday afternoon, 5,500 ft. Monday night, 2,500 ft. Tuesday, then 2,000 ft. Tuesday night
- highs 26-34 cooling to 32 Monday lows 22-27 cooling to 23 Tuesday night.
- Mostly cloudy and a bit cooler with snow (possibly heavy at times) Wednesday, snow (possibly heavy at times) Wednesday night,
- Mostly cloudy and a bit cooler with snow (possibly heavy at times) Thursday, snow and rain at night (snow possibly heavy at times),
- Mostly cloudy and a bit warmer with snow and rain likely (70%) Friday (AM snow possibly heavy at times), snow and rain likely (70%) late Friday night,
- Then mostly cloudy with snow and rain likely (70%) and a bit warmer Saturday.
- snow level 2,000 ft. Wednesday, 1,500 ft. Wednesday night and Thursday, 2,000 ft. Thursday night through Friday night, then 2,500 ft. Saturday.
- highs 26-29 lows near 20.
__________
For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com