Check out my latest Eugene Daily News Weather Or Not column:
http://eugenedailynews.com/2018/04/happy-anniversary-ill-bet-you-didnt-know-about-this-one/
__________
Here is my weekly weather quiz question for the last time. What is the “Diablo Wind?” Here is the correct answer. A Diablo Wind is similar to Santa Ana winds in southern California. These winds occur below canyons in the East Bay hills (Diablo range) and in extreme cases can exceed 60 mph. They develop due to high pressure over Nevada and lower pressure along the central California coast. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs. Good luck.
________________
An Upper Level Low Pressure Trough (Shaded “U” shape with arrows) will continued sending storms into Oregon while weak high pressure clears us out and warms us up a bit for Monday. The graphics for days 1-3 show the complex frontal system that is moving though Tuesday. The graphics for days 3-7 show the frontal systems that will move through the Pacific Northwest Wednesday and next Saturday.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 16 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 4 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
________________
Advisories:
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 1 PM TODAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 6 PM TODAY ABOVE 4,000 FT. FOR THE NORTHERN OREGON CASCADES .
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY ABOVE 4,000 FT. FOR THE CASCADES IN LANE COUNTY.
- A WIND ADVISORY IS IN EFFECT UNTIL 11 AM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY ABOVE 4,500 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, AND THE SISKIYOU MOUNTAINS.
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 11 AM TODAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- 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:
- Cloudy with AM showers, a good (50%) chance of showers (0.25 in. of rain possible) and a bit cooler this afternoon and breezy (Wind: SW 15-25 mph gusts to 35 mph), mostly cloudy with a slight (20%) chance of evening showers, partly cloudy and colder with patchy fog late tonight,
- Mostly cloudy with patchy AM fog, mostly sunny and a bit warmer Monday afternoon, partly cloudy at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Tuesday and windy, then a good (50%) chance of rain Tuesday night.
- highs 54-66 cooling to 58 Tuesday lows 37-45 cooling to 42 Tuesday night.
- Mostly cloudy and a bit cooler with rain likely (70%) Wednesday, showers likely (70%) Wednesday night and Thursday, a good (50%) chance of showers and a bit cooler Thursday night,
- Cloudy and a bit warmer with a good (50%) chance of rain Friday, mostly cloudy with a good (50%) chance of rain at night,
- Then mostly cloudy with rain likely (70%) Saturday.
- highs 55-50 warming to 56 Friday lows 42-38. (seasonal averages high 59 low 39)
_____
Eugene-Springfield Pollen Count
Grass………. Low (0)
Trees………. High (396)
Last Counted: 3/30/18
Data Courtesy of Oregon Allergy Associates.
_________________
Forecast for Roseburg:
- Mostly cloudy and a bit cooler with a (40%) chance of showers today (0.10 in. of rain possible), just mostly cloudy this evening, partly cloudy late tonight,
- Partly cloudy with patchy AM fog, sunny and much warmer Monday afternoon, partly cloudy at night,
- Mostly cloudy and cooler with rain likely (70%) Tuesday, then a (30%) chance of showers Tuesday night.
- highs 56-74 cooling to 63 Tuesday lows 38-49 cooling to 44 Tuesday night.
- Rain and a bit cooler Wednesday, rain and snow showers at night,
- Mostly cloudy with a rain and snow showers likely (60%) and a bit cooler Thursday, cloudy with a (30%) chance of showers and a bit warmer Thursday night and Friday, mostly cloudy with a slight (20%) chance of rain Friday night,
- Then mostly cloudy and a bit cooler with rain likely (60%) Saturday,
- highs 57-53 warming to 59 Friday cooling back to 57 Saturday lows 39-42. (seasonal averages high 60 low 41)
_____________________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with AM showers, a good (50%) chance of showers this afternoon (0.10 in. of rain possible), just mostly cloudy this evening, partly cloudy late tonight,
- Patchy AM fog, sunny and a bit warmer Monday afternoon, becoming mostly cloudy at night with a slight (20%) chance of coastal rain late at night,
- Mostly cloudy with rain and a bit cooler Tuesday, then a good (50%) chance of showers Tuesday night.
- highs 53-66 cooling to 57 Tuesday lows 42-48 cooling to 46 Tuesday night.
- Mostly cloudy with rain and a bit cooler Wednesday, showers at night,
- Mostly cloudy with showers likely (70%) and a bit cooler Thursday, cloudy with a (30%) chance of showers Thursday night,
- Cloudy and a bit warmer with a (30%) chance of showers Friday, mostly cloudy with a (30%) chance of rain at night,
- Then mostly cloudy with rain likely (70%) Saturday.
- highs 52-56 cooling to 54 Saturday lows near 43. (seasonal averages high 54 low 42)
________________
Forecast for the Cascades in Lane County:
- Mostly cloudy with rain and snow showers (0.50 in. of rain possible, 2-5 in. of snow possible) and a bit cooler this afternoon and windy (Wind: SW 15-25 mph gusts to 40 mph decreasing to SW 10-15 mph afternoon gusts to 30 mph), mostly cloudy with a good (50%) chance of evening rain and snow showers (under 0.10 in. of rain possible), becoming just partly cloudy late tonight,
- Mostly sunny and warmer Monday, partly cloudy at night,
- Mostly cloudy and windy with rain likely (70%) and a bit cooler Tuesday, then a good (50%) chance of rain and snow and a bit cooler Tuesday night.
- snow level 4,000 ft. today and tonight, free air freezing level 9,000 ft. rising to 10,000 ft. Monday afternoon, 11,000 ft. Monday night, snow level 7,500 ft. falling to 6,500 ft. Tuesday afternoon, then 5,500 ft. Tuesday night.
- highs 39-57 cooling to 47 Tuesday lows 27-38 cooling to 32 Tuesday night.
- Rain and snow likely (70%) and a bit cooler Wednesday, rain and snow Wednesday night,
- Mostly cloudy and a bit cooler with snow showers likely (70%) Thursday, cloudy with a good (50%) chance of rain and snow showers at night,
- Cloudy and a bit warmer with a good (50%) chance of rain and snow Friday, a (40%) chance of rain and snow Friday night,
- Then rain and snow likely (70%) and a bit warmer Saturday.
- snow level 4,500 ft. Wednesday and Wednesday night, 2,500 ft. Thursday, 3,000 ft. Thursday night, 3,500 ft. Friday, 5,000 ft. Friday night, then 4,500 ft. Saturday.
- highs 43-35 warming to 42 Friday lows 25-29.
________________
**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
________________
Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
________________