Here is my 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 today and moving in. The graphics for days 3-7 show more complex frontal activity moving our way Sunday through next Thursday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 63 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 46 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 cloudy and slightly warmer with possible sun breaks today, mostly cloudy this evening, partly cloudy with patchy fog late tonight,
• 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.
• highs 47-52 cooling to 48 Saturday lows 27-32.
• 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:

• Mostly cloudy and slightly cooler today and this evening, partly cloudy with patchy fog late tonight,
• 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.
• highs 49-52 cooling to 50 Saturday lows 30-34.
• 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:

• Mostly cloudy and a bit cooler today and this evening, partly cloudy tonight with patchy coastal frost late,
• 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.
• highs 52-56 cooling back to 52 Saturday lows 33-35.
• 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:

• A mix of clouds and sun today, mostly cloudy this evening, partly cloudy late tonight,
• 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 4,000 ft. rising to 5,000 ft. today, 5,000 ft. falling to the surface late tonight, 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.
• highs 36-38 cooling back to 36 Saturday lows 19-24.
• 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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