Jan
05.
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.
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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 Monday through Friday show a frontal system moving in Tuesday and another front slides in next Saturday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 24 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 67 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 43 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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ADVISORIES:
- A WINTER WEATHER ADVISORY 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 SUNDAY ABOVE 3,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY ABOVE 2,000 FT. FOR THE NORTHERN CASCADE FOOTHILLS OF OREGON AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 PM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY ABOVE 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT FROM 4 AM UNTIL 10 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT FROM 4 AM UNTIL 10 PM TODAY ABOVE 2,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY ABOVE 3,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT THROUGH SUNDAY MORNING ABOVE 3,500 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A WIND ADVISORY IS IN EFFECT FROM 4 AM UNTIL 4 PM TODAY FOR CENTRAL AND EASTERN LAKE COUNTY.
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH SUNDAY AFTERNOON FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 4 AM SUNDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM TODAY 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with AM rain and a slight (20%) chance of thunderstorms, showers with a slight (20%) chance of thunderstorms and a bit cooler this afternoon (0.25 in. of rain possible, more in storms), showers with a slight (20%) chance of evening thunderstorms, showers late tonight (0.25 in. of rain possible, more in storms),
- Mostly cloudy with AM showers, a good (50%) chance of showers and a bit warmer Sunday afternoon (under 0.10 in. of rain possible), a good (50%) chance of evening showers, rain late at night (under 0.10 in. of rain possible),
- Mostly cloudy with rain and a bit warmer Monday, then rain and breezy with a slight (20%) chance of thunderstorms late Monday night.
- highs 45-47 lows 36-42.
- Mostly cloudy with AM rain and a slight (20%) chance of thunderstorms, rain and breezy Tuesday, rain Tuesday night,
- Mostly cloudy and a bit cooler with rain Wednesday, rain Wednesday night with snow late at night (snow level 1,500 ft.),
- Mostly cloudy with rain and a slight (20%) chance of snow and a bit cooler Thursday (snow level 1,000 ft.), rain and snow likely (70%) Thursday night (snow level 1,000 ft.),
- Then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow Friday (snow level 500 ft.).
- highs 47-39 lows 36-32. (seasonal averages high 47 low 34)
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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)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy and a bit cooler with rain showers and snow showers and a slight (20%) chance of thunderstorms (AM snow possibly heavy at times) today, evening rain showers and snow showers with a slight (20%) chance of thunderstorms, rain and snow showers late tonight (2-3 in. of snow possible),
- Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of rain and snow showers Sunday afternoon (snow level 2,000 ft. rising to 2,500 ft. in the afternoon), a (30%) chance of rain and snow showers at night,
- Mostly cloudy with showers and a bit warmer Monday, then showers Monday night.
- highs 43-47 lows 36-43.
- Mostly cloudy with AM showers, rain and snow showers Tuesday afternoon, rain and snow showers late Tuesday night,
- Mostly cloudy with rain and snow showers and a bit cooler Wednesday, evening rain and snow showers, rain and snow showers likely (70%) late at night,
- Then mostly cloudy with rain and snow showers likely (70%) Thursday and Thursday night,
- Then rain and snow showers and a bit cooler Friday.
- highs 47-42 lows 38-34. (seasonal averages high 49 low 37).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms today (0.25 in. of rain possible, snow level 2,000 ft.), evening showers with a slight (20%) chance of thunderstorms, showers late tonight (0.25 in of rain possible),
- Mostly cloudy with AM coastal showers and coastal showers likely (70%) and a bit cooler Sunday afternoon while inland showers likely (70%) Sunday (0.10 in. of rain possible), evening coastal showers likely (70%), showers late Sunday night while a good (50%) chance of evening inland showers with inland showers likely (70%) late Sunday night (under 0.10 in. of rain possible),
- Mostly cloudy with showers and a bit warmer Monday, then showers and breezy Monday night.
- highs 52-50 warming to 55 Monday lows 38-44.
- Mostly cloudy and breezy with showers and a bit cooler Tuesday, showers Tuesday night,
- Mostly cloudy with showers and a bit cooler Wednesday, showers at night,
- Mostly cloudy with showers likely (70%) and a bit warmer Thursday, then rain and snow showers likely (70%) Thursday night,
- Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Friday.
- highs 53-50 warming to 52 Thursday cooling to 47 Friday lows 39-36. (seasonal averages high 53 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with AM snow (snow possibly heavy at times), a bit cooler with snow showers this afternoon, a slight (20%) chance of evening thunderstorms, snow showers tonight (0.50 in. of rain possible, 3-6 in. of snow possible),
- Mostly cloudy and a bit cooler with snow showers Sunday, evening snow showers likely (70%), snow late at night,
- Mostly cloudy with snow and rain and a bit cooler Monday, then snow and rain and breezy Monday night.
- snow level 2,000 ft. today, 1,500 ft. tonight, 2,000 ft. Sunday and Sunday night, 3,500 ft. Monday, then 5,500 ft. Monday night.
- highs 33-26 lows 22-27.
- Mostly cloudy with rain and snow and a bit cooler Tuesday and blustery (afternoon snow possibly heavy at times), snow, possibly heavy at times, Tuesday night,
- Mostly cloudy and a bit cooler with snow, possibly heavy at times, Wednesday, evening snow (possibly heavy at times), a good (50%) chance of snow late at night,
- Mostly cloudy and a bit cooler with snow (possibly heavy at times) Thursday, snow likely (70%) Thursday night (snow possibly heavy at times),
- Then mostly cloudy and a bit warmer with snow likely (70%) Friday (snow possibly heavy at times).
- snow level 4,000 ft. Tuesday, 2,000 ft. Tuesday night, 1,500 ft. Wednesday, then at the surface Wednesday night through Friday,
- highs 32-26 lows 28-20.
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