Here is my weekly weather quiz question. What is a “Nor’easter?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

________________

The upper airflow (Shaded area with blue arrows) resumes sending Pacific moisture our way. A frontal system fell apart as it moved into the Pacific Northwest Tuesday so we had more sunshine than I expected. No complaints there. Another frontal system slid in today adding to the rain chances. This frontal system pushes through Oregon Saturday. Sunday another frontal system (position shown is Sunday) should move in Monday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

________________

Advisories:

• A HIGH SURF ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 PM THURSDAY FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
• A HIGH SURF ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 10 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM THURSDAY ABOVE 4,000 FT. FOR THE NORTHERN OREGON CASCADES NOT INCLUDING THE CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON CASCADES , THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
• A WIND ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR CENTRAL AND EASTERN LAKE COUNTY.

________________

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with rain early this evening, showers tonight (0.25 in. of rain possible),
• Mostly cloudy with showers likely (70%) in the AM, a good (50%) chance of rain and a bit warmer Thursday afternoon and a bit warmer (under 0.10 in. of rain possible), a slight (20%) chance of evening showers, just mostly cloudy with patchy fog late at night and Friday AM, mostly cloudy with a good (50%) chance of rain and a bit cooler Friday afternoon (under 0.10 in. of rain possible), evening rain, showers late at night (0.30 in. of rain possible),
• A mix of clouds and sun with a good (50%) chance of showers Saturday, mostly cloudy with a (30%) chance of showers in the evening, then partly cloudy with areas of fog late Saturday night.
• lows 42-37 warming to 40 Saturday night highs 52-50 warming back to 52 Saturday.
• Areas of AM fog, a mix of clouds and sun and a bit warmer Sunday afternoon, partly cloudy with patchy fog late Sunday night and Monday AM, sunny and a bit warmer in the afternoon, partly cloudy with patchy fog late Sunday night,
• Patchy AM fog and partly cloudy Tuesday AM, sunny in the afternoon, partly cloudy with patchy fog late Tuesday night,
• Patchy fog with a mix of clouds and sun Wednesday AM, then mostly sunny in the afternoon.
• high 57-60 lows 37-42. (seasonal averages high 50 low 35)

_____

Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is allowed.

Oakridge: YELLOW – Caution is Advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

___________________

Forecast for Roseburg:

• Cloudy with evening showers, showers likely (70%) late tonight (under o.10 in. of rain possible, snow level 3,500 ft. late tonight),
• Mostly cloudy with a slight (20%) chance of showers Thursday AM (under 0.10 in. of rain possible, AM snow level 3,000 ft.), just mostly cloudy Thursday afternoon and at night,
• Mostly cloudy and a bit warmer with a (30%) chance of rain Friday (under 0.10 in. of rain possible), evening rain, showers likely (70%) late Friday night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers Saturday, a slight (20%) chance of evening showers, then areas of fog late at night.
• lows 39-42 cooling to 38 Saturday highs near 56.
• Partly cloudy with areas of fog Sunday AM, patchy lingering afternoon fog and a bit warmer , mostly clear with patchy fog late Sunday night and Monday AM, mostly sunny in the afternoon, clear with patchy fog late Monday night,
• Patchy AM fog, sunny and a bit cooler Tuesday, clear with patchy fog late at night and Wednesday AM, then sunny Wednesday afternoon.
• highs 62-64 cooling back to 62 Wednesday lows 40-38 warming to 42 Tuesday night. (seasonal averages high 52 low 37)

________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with coastal showers this evening while inland evening showers likely (70%), a good (50%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers (under 0.10 in. of rain possible), just mostly cloudy and a bit warmer Thursday afternoon and at night,
• Mostly cloudy with a good (50%) chance of rain Friday (under 0.10 in. of rain possible), evening rain, showers likely (70%) late Friday night ( 0.30 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers Saturday afternoon, mostly cloudy with a slight (20%) chance of evening showers, then just mostly cloudy with areas of fog late Saturday night.
• lows 46-48 cooling to 42 Saturday highs near 58.
• Mostly cloudy with areas of AM fog, sunny and warmer Sunday, mostly clear at night,
• Mostly sunny and a bit warmer Monday, mostly clear at night,
• Then sunny and a bit cooler Tuesday and Wednesday, clear Tuesday night.
• highs 62-64 cooling to 60 Wednesday lows 43-46. (seasonal averages high 52 low 40).

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow changing to rain and snow showers late tonight (0.25 in. of rain possible, 1-4 in. of snow possible),
• Mostly cloudy with AM rain and snow showers likely (70%), a good (50%) chance of rain and snow showers Thursday afternoon (0.10 in. of rain possible, 1-2 in. of snow possible), just mostly cloudy Thursday night,
• A mix of clouds and sun Friday AM, becoming cloudy and a bit warmer with a (40%) chance of afternoon rain and snow and breezy (Wind: S 5-15 mph increasing to S 15-25 mph gusts to 45 mph in the afternoon), evening rain, rain and snow showers late at night and breezy (Wind: SW 15-25 mph gusts to 40 mph decreasing to SW 5-15 mph gusts to 25 mph late at night),
• Mostly cloudy with AM rain and snow showers likely (70%), a bit cooler Saturday afternoon with a good (50%) chance of rain and snow showers, partly cloudy with a (30%) chance of evening rain and snow showers, then a slight (20%) chance of showers late Saturday night.
• snow level 4,000 ft. falling to 3,000 ft. late tonight, 3,000 ft. rising to 4,000 ft. Thursday, free air freezing level 5,500 ft. rising to 6,000 ft. late Thursday night, snow level 4,500 ft. Friday, 7,000 ft.  falling to 6,000 ft. late Friday night, snow level 4,500 ft. Saturday, then 5,500 ft. Saturday night.
• lows 26-29 highs 36-40 cooling to 38 Saturday.
• A mix of clouds and sun and a bit warmer Sunday, clear at night,
• Sunny and a bit warmer Monday and Tuesday, clear both nights,
• Then mostly sunny Wednesday.
• free air freezing level 8,000 ft. Sunday, 11,000 ft. Sunday night, 12,000 ft. Monday, 13,000 ft. Monday night, 12,000 ft. Tuesday, then 11,000 ft. Tuesday night and Wednesday.
• highs 42-47 lows 30-34.

________________

**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.

________________