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

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An Upper Level High Pressure Ridge (“Arch “shape) moves in bringing sunshine and keeping overnight temperatures in the 20s. The graphics for days 1-3 show a frontal system offshore Thursday and moving in. The graphics for days 3-7 show more frontal activity moving our way Saturday through next Wednesday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 2 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:

• Becoming mostly cloudy with areas of frost and patchy fog late tonight,
• Mostly cloudy and slightly warmer with possible sun breaks Thursday, mostly cloudy in the evening, partly cloudy with patchy fog late Thursday night,
• Some AM clouds, sunny and a bit warmer Friday afternoon, partly cloudy in the evening, mostly cloudy late at night,
• Mostly cloudy and a bit cooler Saturday, then mostly cloudy Saturday night.
• lows 25-32 highs 47-52 cooling to 48 Saturday.
• Mostly cloudy with a (40%) chance of rain and a bit warmer Sunday afternoon, a good (50%) chance of rain Sunday night,
• Mostly cloudy with a good (50%) chance of AM rain, rain likely (70%) and a bit cooler Monday afternoon (President’s Day), mostly cloudy with a good (50%) chance of rain at night,
• Mostly cloudy and a bit cooler with rain Tuesday and in the evening, rain and snow likely (70%) late Tuesday night,
• Then mostly cloudy and a bit cooler with rain and snow likely (70%) Wednesday.
• highs 52-42 lows 38-32. (seasonal averages high 52 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 with patchy evening fog, mostly cloudy with patchy fog late tonight,
• Mostly cloudy and slightly cooler Thursday and in the evening, partly cloudy with patchy fog late Thursday night,
• Some AM clouds, sunny and a bit warmer Friday afternoon, mostly clear in the evening, mostly cloudy late at night,
• Mostly cloudy and a bit cooler Saturday, then mostly cloudy Saturday night.
• lows 29-34 highs 49-52 cooling to 50 Saturday.
• Mostly cloudy and a bit warmer Sunday afternoon, mostly cloudy with a slight (20%) chance of rain Sunday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Monday (President’s Day), a (40%) chance of rain at night,
• Mostly cloudy with a good (50%) chance of AM rain and snow, rain and snow likely (70%) and a bit cooler Tuesday afternoon, rain and snow Tuesday night,
• Then mostly cloudy and a bit cooler with rain and snow Wednesday.
• highs 53-42 lows 39-35 (seasonal averages high 54 low 38)

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

• Partly cloudy with areas of evening coastal frost, mostly cloudy with patchy coastal frost late tonight,
• Mostly cloudy and a bit cooler Thursday and in the evening, partly cloudy Thursday night with,
• Partly cloudy and a bit warmer Friday,  partly cloudy Friday night, areas of coastal frost late at night,
• Mostly cloudy and a bit cooler Saturday and in the evening, then mostly cloudy late Saturday night.
• lows 33-35 highs 52-56 cooling back to 52 Saturday.
• Mostly cloudy start, partly cloudy and a bit warmer Sunday afternoon, mostly cloudy with a (30%) chance of rain Sunday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Monday (President’s Day), a good (50%) chance of rain at night,
• Mostly cloudy with rain likely (70%) and a bit cooler Tuesday and in the evening, rain and snow late Tuesday night,
• Then rain and snow and a bit cooler Wednesday.
• highs 54-45 lows 38-34. (seasonal averages high 54 low 41)

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

• Partly cloudy tonight,
• A mix of clouds and sun Thursday, mostly cloudy in the evening, partly cloudy late Thursday night,
• Some AM clouds, sunny and a bit warmer Friday afternoon, partly cloudy at night,
• A mix of clouds and sun and a bit cooler Saturday, then partly cloudy Saturday night.
• free air freezing level 4,500 ft. falling to 4,000 ft. late tonight, 4,000 ft. rising to 5,000 ft. Thursday, 5,000 ft. falling to the surface late Thursday night, at the surface rising to 5,000 ft. Friday afternoon,  4,500 ft. falling to 3,500 ft. late Friday night, 4,500 ft. Saturday, then 5,000 ft. Saturday night.
• lows 17-24 highs 36-38 cooling back to 36 Saturday.
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain and snow Sunday afternoon, a good (50%) chance of rain and snow Sunday night,
• Mostly cloudy with snow and rain likely (70%) and a bit cooler Monday (President’s Day), snow with evening rain likely (70%), snow likely (70%) late at night,
• Then mostly cloudy and a bit cooler with snow, possibly heavy at times, Tuesday through Wednesday.
• snow level 3,000 ft. Sunday, 4,000 ft. Sunday night and Monday 3,500 ft. Monday night, 2,500 ft. Tuesday, 1,500 ft. Tuesday night, then at the surface Wednesday.
• highs 42-25 lows 27-19.

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