Here is my weekly weather quiz question for the last time. What is “Apparent Temperature?” Here is the correct answer. Apparent Temperature is a measure of human discomfort due to combined heat and humidity (e.g., heat index). I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer at the bottom of this page. The first person to post the correct answer 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 blue arrows) takes over replacing the weak high that gave us the sunshine today. The graphic for days 1-3 shows the next cold front that will move through Oregon. The graphic for days 3-7 shows the virtual parade of frontal systems that will be moving through the Pacific Northwest through next Monday. For mountain snow conditions at the local ski areas check out their websites or give them a call. Hope you changed your clocks last night.

 

________________

 

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 6 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 1 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

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.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

________________

Advisories:

• THE NATIONAL WEATHER SERVICE ADVISES THAT THERE IS A POTENTIAL FOR RIVERS AND STREAMS TO RISE SIGNIFICANTLY CREATING MINOR FLOODING CONDITIONS DUE TO RAINFALL AND MELTING SNOW FOR THE EASTERN COLUMBIA RIVER GORGE, THE LOWER COLUMBIA BASIN, THE GRANDE RONDE VALLEY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE JOHN DAY BASIN, THE JOHN DAY HIGHLANDS, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND NORTH CENTRAL OREGON.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson 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:

• Partly cloudy this evening, mostly cloudy with a slight (20%) chance of rain late tonight,
• Mostly cloudy with rain and a bit cooler Monday (0.25 in. of rain possible), Monday night (0.25 in. of rain possible), and Tuesday (0.10 in. of rain possible), cloudy with evening rain, a good (50%) chance of rain Tuesday night. (0.10 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Wednesday, then cloudy with a good (50%) chance of showers at night.
• lows 47-50 cooling to 40 Wednesday night highs 59-57.
• A mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers Thursday night,
• Cloudy with a good (50%) chance of rain Friday, rain likely (70%) and a bit warmer Friday night and Saturday (a bit cooler), cloudy with a good (50%) chance of showers at night,
• Then partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday.
• highs 58-53 lows 40-45 cooling to 37 Saturday night. (seasonal averages high 56 low 37)

 

_________________

 

Forecast for Roseburg:

• Mostly clear this evening, partly cloudy with areas of fog late tonight and Monday AM, mostly cloudy with a slight (20%) chance of rain Monday afternoon, cloudy with a (40%) chance of rain at night (under 0.10 in. of rain possible),
• Then mostly cloudy and a bit warmer with a (30%) chance of rain Tuesday (under 0.10 in. of rain possible), a (40%) chance of rain Tuesday night (under 0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Wednesday afternoon, cloudy and colder with a (40%) chance of showers at night.
• lows 47-52 cooling to 40 Wednesday night highs 66-60.
• Partly cloudy with a sight (20%) chance of showers Thursday, just mostly cloudy Thursday night,
• Cloudy with a (40%) chance of rain and a bit warmer Friday, rain likely (60%) Friday night and Saturday (a bit cooler), cloudy with a (30%) chance of showers Saturday night,
• Then mostly cloudy with a slight (20%) chance of showers Sunday.
• highs 60-63 cooling to 57 Saturday lows 40-45 cooling back to 40 Saturday night. (seasonal averages high 58 low 39)

 

_____________________

 

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

• Partly cloudy at the shore this evening and mostly cloudy with patchy fog and a slight (20%) chance of coastal rain late tonight while a slight (20%) chance of inland rain with patchy fog late tonight,
• Areas of AM fog, cloudy with a good (50%) chance of rain Monday (0.10 in. of rain possible), cloudy with evening coastal rain and a good (50%) chance of coastal rain late at night while a good (50%) chance of inland rain late Monday night (0.25 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of rain Tuesday (under 0.10 in. of rain possible), coastal rain at night while a (30%) chance of inland rain Tuesday night (0.10 in. of rain possible),
• Mostly cloudy with AM rain, showers and a bit cooler Wednesday afternoon, then colder with a good (50%) chance of showers at night.
• lows 52-54 cooling to 43 Wednesday night highs 60-55.
• Partly cloudy and a bit warmer with a slight (20%) chance of showers Thursday, just mostly cloudy Thursday night,
• Cloudy and  bit warmer with good (50%) chance of rain Friday, mostly cloudy with rain likely (70%) Friday night and Saturday (a bit cooler), a good (50%) chance of showers at night,
• Then just partly cloudy and a bit warmer Sunday.
• highs 56-53 warming to 55 Sunday lows 45-40. (seasonal averages high 54 low 41)

 

________________

Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• Cloudy with a good (50%) chance of AM rain, rain and a bit cooler Monday afternoon (0.25 in. of rain possible) and Monday night (0.25 in. of rain possible),
• Cloudy with a good (50%) chance of rain Tuesday and at night,
• Mostly cloudy with rain and a bit cooler Wednesday, evening showers, then rain and snow showers likely (70%) late Wednesday night.
• free air freezing level 10,000 ft. falling to 9,000 ft. late tonight, snow level above 8,000 ft. Monday through Tuesday night, 7,500 ft. Wednesday, then 6,000 ft. falling to 4,500 ft, late Wednesday night .
• lows 34-40 cooling back to 27 Wednesday night highs 49-45.
• A mix of clouds and sun with a (30%) chance of rain and snow Thursday, just partly cloudy at night,
• Cloudy and a bit warmer with a good (50%) chance of rain Friday and Friday night,
• Mostly cloudy and a bit cooler with rain likely (70%) Saturday, rain and snow showers likely (70%) at night,
• Then partly cloudy and a bit cooler with a (30%) chance of ran and snow showers Sunday.
• snow level 3,500 ft. Thursday, free air freezing level 6,000 ft. Thursday night, snow level 7,000 ft. Friday, 8,000 ft. Friday night, 7,000 ft. Saturday, 5,000 ft. Saturday night, then 3,500 ft. Sunday.
• highs 45-47 cooling to 39 Sunday lows 30-34 cooling to 27 Saturday night.

 

________________

**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.

________________