Here is my weekly weather quiz question. What is “a Parapet Wall?” 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.

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An upper level low (Shaded “U” shape with blue arrows) will be in control of our weather for a while. A weak frontal system moved into the Pacific Northwest and fell apart. Get ready for another frontal system behind it (see previous graphic) followed by yet another frontal system Saturday and continuing the parade of storms a frontal system approached the coast Monday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 74 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 29 in the Good category measuring Particulate Matter.

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

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

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Advisories:

• A HIGH WIND WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 1 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, AND JACKSON COUNTY.
• A HIGH SURF WARNING IS IN EFFECT FROM 1 AM UNTIL 4 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A HIGH WIND WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 4 PM THURSDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND JACKSON COUNTY.
• A HIGH WIND WARNING IS IN EFFECT FROM 4 AM UNTIL 10 PM THURSDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND CENTRAL, EASTERN AND WESTERN LAKE COUNTY.
• A FREEZING RAIN ADVISORY IS IN EFFECT FROM 6 PM THIS EVENING UNTIL NOON THURSDAY FOR THE WESTERN COLUMBIA RIVER GORGE,  THE CENTRAL COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY.
• A HIGH WIND WARNING IS IN EFFECT FROM 7 AM UNTIL 4 PM  THURSDAY FOR THE NORTH OREGON COAST AND FOR THE BEACHES AND HEADLANDS OF THE CENTRAL OREGON COAST.
• A FLOOD WATCH IS IN EFFECT FROM 10 PM TONIGHT UNTIL THURSDAY AFTERNOON FOR THE CURRY COUNTY COAST.
• A WIND ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 PM THURSDAY FOR THE KLAMATH BASIN.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 AM THURSDAY UNTIL 4 AM FRIDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS, THE SOUTHERN OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND JACKSON COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, EASTERN AND CENTRAL LAKE COUNTY.
•  A WINTER STORM WATCH IS IN EFFECT  THROUGH THIS AFTERNOON FOR THE THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADES AND THE UPPER HOOD RIVER VALLEY.
• A HEALTH ADVISORY CONTINUES FOR SUNSET BAY STATE PARK BEACH LOCATED IN COOS COUNTY FOR HIGHER-THAN-NORMAL FECAL BACTERIA WHICH CAN RESULT IN DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. DIRECT CONTACT WITH THE WATER – ESPECIALLY BY CHILDREN AND THE ELDERLY, WHO MAY BE VULNERABLE TO WATERBORNE BACTERIA – SHOULD BE AVOIDED IN THIS AREA UNTIL THE ADVISORY IS LIFTED. 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.

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

• Mostly cloudy with rain tonight (0.50 in. of rain possible),
• Rain (0.15 in. of rain possible) and windy Thursday (Wind: S 10-15 mph increasing to S 20-30 mph gusts to 40 mph in the afternoon), rain in the evening, showers late Thursday night (0.25 in. of rain possible),
• Mostly cloudy and a bit cooler with good (50%) chance of showers Friday (under 0.10 in. of rain possible), a slight (20%) chance of showers Friday night (under 0.10 in. of rain possible),
• Cloudy with a good (50%) chance of rain Saturday, then rain likely (70%) Saturday night.
• lows near 42 highs near 53.
• Mostly cloudy with rain likely (70%) Sunday, a good (50%) chance of rain Sunday night,
• Cloudy with a good (50%) chance of rain Monday through Tuesday night,
• Then rain likely (70%) Wednesday.
• highs 52-54 lows 46-49. (seasonal averages high 47 low 35)

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is allowed.

Oakridge: GREEN – Burning is allowed.

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

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

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Forecast for Roseburg:

• Cloudy with evening rain, a (30%) chance of rain late tonight (0.20 in. of rain possible) and breezy (Wind: S 15-25 mph),
• Cloudy with a (40%) chance of rain Thursday AM, rain and a bit cooler in the afternoon (0.25 in. of rain possible) and evening, showers late Thursday night (0.30 in. of rain possible, snow level 2,500 ft. late at night),
• Mostly cloudy with rain likely (60%) Friday (under 0.10 in. of rain possible, snow level 3,000 ft.), a slight (20%) chance of showers Friday night (snow level 3,500 ft. late at night),
• Cloudy with a slight (20%) chance of showers Saturday AM, then a slight (20%) chance of rain Saturday night.
• lows 46-40 warming to 43 Saturday night highs 53-50 warming to 54 Saturday.
• Mostly cloudy with rain likely (70%) Sunday, a (40%) chance of rain Sunday night,
• Cloudy with a (40%) chance of rain Monday, mostly cloudy with a (40%) chance of rain Monday night,
• Cloudy and just a bit warmer with a (40%) chance of rain Tuesday and Tuesday night,
• Then mostly cloudy and a bit cooler with rain Wednesday.
• highs 52-57 cooling to 54 Wednesday lows 45-50. (seasonal averages high 49 low 38)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Cloudy with rain tonight (0.55 in. of rain possible) and windy (Wind: SE 10-20 mph increasing to S 25-35 mph late tonight at the shore while SE 10-20 mph inland tonight),
• Rain Thursday (0.50 in. of rain possible) and very windy (Wind: S 30-45 mph shifting SW 20-30 mph late in the afternoon at the shore while SE 10-20 mph shifting late morning and afternoon S 20-30 mph inland), evening rain, showers with a slight (20%) chance of thunderstorms late Thursday night (0.35 in. of rain possible, more possible in storms),
• Mostly cloudy and a bit cooler with rain Friday AM, afternoon coastal showers while inland afternoon (0.30 in. of rain possible) showers likely (70%), a slight (20%) chance of showers Friday night (under 0.10 in. of rain possible).
• Cloudy with a (40%) chance of showers Saturday AM, a good (50%) chance of rain and breezy in the afternoon, then rain Saturday night.
• lows 52-46 warming to 48 Saturday night highs 58-55 warming back to 58 Saturday.
• Mostly cloudy with rain Sunday, a good (50%) chance of rain Sunday night,
• Rain likely (70%) and breezy Monday, a good (50%) chance of rain Monday night through Tuesday night,
• Then mostly cloudy with rain Wednesday.
• highs 58-56 lows 48-53. (seasonal averages high 52 low 40).

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Forecast for the Cascades in Lane County:

• Cloudy with rain tonight (0.10 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph),
• Mostly cloudy with a good (50%) chance of rain Thursday AM, rain likely (70%) and a bit cooler in the afternoon and breezy (Wind: S 15-25 mph gusts to 40 mph), rain and snow in the evening, rain and snow showers and colder late  Thursday night (0.50 in. of rain possible, 2-5 in. of snow possible),
• Mostly cloudy and a bit cooler with rain and snow showers likely (60%) Friday, a slight (20%) chance of rain and snow showers Friday night and Saturday AM, a (40%) chance of rain and snow and a bit warmer Saturday afternoon, then cloudy with a good (50%) chance of rain and snow Saturday night.
• snow level 8,000 ft. tonight, 6,500 ft. Thursday, 3,500 ft. Thursday night through Friday night, 5,000 ft. Saturday, then 5,500 ft. Saturday night.
• lows near 30 highs 42-37 warming back to 42 Saturday.
• Cloudy and a bit cooler with rain and snow likely (70%) Sunday, mostly cloudy with a good (50%) chance of rain and snow Sunday night,
• Rain and snow likely (60%) and a bit warmer Monday, cloudy with a good (50%) chance of rain Monday night through Tuesday night, then rain likely (70%) Wednesday.
• snow level 5,500 ft. Sunday, 5,000 ft. Sunday night, 5,500 ft. Monday, 7,000 ft. Monday night through Tuesday night, then 8,000 ft. Wednesday.
• highs 36-42 lows 32-37.

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**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.

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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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