Here is my new weekly weather quiz question. What is “The Intertropical Convergence Zone?

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An Upper Level Low Pressure Trough (“U “shape) moves in returning moisture and another frontal system. The graphics for days 1-3 show a frontal system offshore Thursday. The graphics for days 3-7 show more frontal activity moving our way Friday through next Tuesday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 8 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)

NOTE: Outdoor burning remains temporarily prohibited for the following areas: Eugene-Springfield, Florence, Lowell, Oakridge and UGB, and Springfield and UGB.

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

• Mostly clear with patchy fog late tonight,
• Some AM clouds with patchy fog, partly cloudy and a bit cooler Wednesday afternoon and evening, mostly cloudy with patchy fog late Wednesday night,
• Mostly cloudy and a bit warmer with possible sun breaks Thursday, mostly cloudy in the evening, partly cloudy with patchy fog late at night,
• Mostly sunny and a bit warmer Friday, then partly cloudy Friday night.
• lows 22-27 highs 45-50.
• A mix of clouds and sun and a bit cooler Saturday, mostly cloudy Saturday night,
• Mostly cloudy with a slight (20%) chance of AM rain, a (40%) chance of rain and a bit warmer Sunday afternoon, a good (50%) chance of rain at night,
• Cloudy with a good (50%) chance of rain and a bit cooler Monday (President’s Day), mostly cloudy with a good (50%) chance of rain Monday night,
• Then mostly cloudy and a bit cooler with rain likely (70%) Tuesday.
• highs 48-50 cooling to 47 Tuesday lows 32-39. (seasonal averages high 51 low 35)

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Home Wood Heating Advisory:

Posted Daily

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)

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Forecast for the Umpqua Valley including Roseburg:

• Partly cloudy tonight,
• Sunny and a bit warmer Wednesday, partly cloudy in the evening, mostly cloudy late Wednesday night,
• Mostly cloudy and a bit warmer Thursday and at night,
• Partly cloudy and a bit warmer Friday, then partly cloudy Friday night.
• lows 22-32 cooling to 30 Friday night highs 47-50.
• Mostly cloudy and a bit warmer Saturday, mostly cloudy Saturday night,
• Mostly cloudy with a slight (20%) chance of rain Sunday afternoon, a slight (20%) chance of rain at night,
• Mostly cloudy with a (30%) chance of rain Monday (President’s Day), a (30%) chance of rain Monday night,
• Mostly cloudy with a (40%) chance of AM rain and snow, then a (40%) chance of rain Tuesday afternoon.
• highs 50-52 cooling to 49 Tuesday lows 32-38 cooling to 36 Monday night (seasonal averages high 54 low 38)

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

• Mostly clear with areas of evening coastal frost, colder with widespread frost late tonight,
• Widespread AM coastal frost, sunny and a bit warmer Wednesday afternoon, partly cloudy with areas of evening coastal frost, widespread frost with a slight (20%) chance of rain late Wednesday night,
• Mostly cloudy with a slight (20%) chance of rain Thursday (afternoon snow level 2,000 ft), a slight (20%) chance of coastal rain at night while a slight (20%) chance of inland evening rain, just mostly cloudy late at night,
• Partly cloudy and a bit warmer Friday, then partly cloudy Friday night.
• lows 26-34 highs 52-55.
• Partly cloudy and a bit cooler Saturday and in the evening, mostly cloudy late Saturday night,
• Mostly cloudy with a slight (20%) chance of rain Sunday afternoon, a (30%) chance of rain at night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Monday (President’s Day), a (30%) chance of rain Monday night,
• Then mostly cloudy with a (40%) chance of rain Tuesday.
• highs 53-52 lows 34-39 cooling to 37 Monday night. (seasonal averages high 54 low 41)

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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Patchy evening fog, mostly clear tonight,
• Mostly sunny and cooler Wednesday, partly cloudy Wednesday night,
• Mostly cloudy Thursday and in the evening, partly cloudy late at night,
• Some AM clouds, mostly sunny and a bit warmer Friday afternoon, then partly cloudy Friday night.
• free air freezing level at the surface tonight, at the surface rising to 3,500 ft. Wednesday afternoon, 4,500 ft. falling to 3,500 ft. late Wednesday night, 4,000 ft. rising to 5,000 ft. Thursday, 5,000 ft. falling to the surface late Thursday night, 5,000 ft. Friday, then 4,500 ft. Friday night.
• lows 9-20 highs 35-38.
• Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
• A mix of clouds and sun with a slight (20%) chance of snow Sunday with a slight (20%) chance of afternoon rain, mostly cloudy with a good (50%) chance of rain and snow at night,
• Mostly cloudy with a good (50%) chance of snow and rain and a bit cooler Monday, a good (50%) chance of rain and snow Monday night,
• Then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow Tuesday.
• free air freezing level 4,500 ft. Saturday, 5,500 ft. Saturday night, snow level 3,500 ft. Sunday, 4,000 ft. Sunday night, 4,000 ft. Monday (President’s Day), 3,500 ft. Monday night, then 2,500 ft. Tuesday.
• highs 39-32 lows 24-28 cooling to 26 Monday night.

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