Here is my weekly weather quiz question for the last time. What are “Iridescent Clouds? Here is the correct answer. Iridescent Clouds are clouds that exhibit brilliant bright spots, bands, or borders of colors, usually red and green, observed up to about 30 degrees from the sun. The coloration is due to the diffraction with small cloud particles producing the effect. It is usually seen in thin cirrostratus, cirrocumulus, and altocumulus clouds.

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The Upper Level Airflow is sending moisture west to east straight into the Pacific Northwest. The graphics for days 1-3 show the next frontal system headed our way Sunday and Monday.  The graphics for days 3-7 show more complex frontal systems moving our way Tuesday through next Saturday giving us more chances of getting wet.

NOTE: Daylight Saving Time officially begins a 2 am Sunday (tomorrow), so remember to set your clocks ahead one hour at bedtime tonight. (Spring Forward). The authorities also remind you to check your Smoke Detector, Carbon Monoxide Detector, and Radon detector to make sure they are working properly. Replace batteries if necessary. As the old saying goes “It’s better to be safe than sorry.”

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

NOTE: Outdoor burning season has now officially opened. The ban has been lifted.

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ADVISORIES:

• None at This Time.

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

• Mostly cloudy with a slight (20%) chance of late evening showers, cloudy with rain late tonight (under 0.10 in. of rain possible),
• Mostly cloudy and slightly cooler with rain (0.25 in. of rain possible) Sunday (Daylight Saving time starts 2 am), rain Sunday night (0.50 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Monday (1.00 in. of rain possible) and in the evening, a good (50%) chance of showers and colder at night (0.25 in. of rain possible),
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Tuesday, then showers likely (70%) Tuesday night.
• lows 35-45 cooling to 33 Monday night and Tuesday night highs 56-49.
• A mix of clouds and sun and a bit warmer with a good (50%) of showers Wednesday, just partly cloudy Wednesday night,
• A mix of clouds and sun and a bit warmer Thursday, mostly cloudy with  a (30%) chance of showers at night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Friday, a good (50%) chance of showers Friday night,
• Mostly cloudy with a good (50%) chance of AM showers, then showers likely (70%) Saturday afternoon.
• highs 52-58 cooling to 55 Friday and Saturday lows 29-39 cooling to 36 Friday night. (seasonal averages high 56 low 37)

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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 (LRAPAz

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Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy with a good (50%) chance of evening rain becoming rain likely (70%), rain late tonight (under 0.10 in. of rain possible, evening snow level 3,500 ft.),
• Mostly cloudy with AM rain likely (70%), rain and slightly cooler (under 0.10 in. of rain possible) Sunday (Daylight Saving time starts 2 am), rain at night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain Monday (0.75 in. of rain possible, snow level 3,500 ft. falling to 2,500 ft.), evening rain and snow, snow showers likely (70%) and colder late Monday night (0.25 in. of rain possible, snow level 2,000 ft.),
• Mostly cloudy with AM rain and  snow showers likely (70%), rain and a bit warmer Tuesday afternoon, evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late Tuesday night.
• lows 42-48 cooling to 35 Tuesday night highs 58-48.
• Mostly cloudy with a (40%) chance of AM rain and snow showers, partly cloudy and a bit warmer with a slight (20%) chance of  showers Wednesday afternoon, mostly clear in the evening, partly cloudy late Wednesday night,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Thursday afternoon, a good (50%) chance of evening showers, rain likely (70%) late at night,
• Mostly cloudy and a bit cooler with showers likely (70%) Friday, a (40%) chance of showers Friday night,
• Then mostly cloudy and a bit warmer with a good (50%) chance of showers Saturday.
• highs 52-58 cooling to 55 Friday warming to 57 Saturday lows 32-42 cooling to 38 Friday night. (seasonal averages high 58 low 39)

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

• Mostly cloudy with late evening coastal rain likely (70%) while inland evening rain and fog, rain late tonight (0.10 in. of rain possible),
• Mostly cloudy and slightly cooler with coastal rain Sunday while inland AM rain likely (70%) and inland rain and slightly cooler Sunday afternoon (0.10 in. of rain possible) and a bit warmer (Daylight Saving time starts 2 am), rain Sunday night (0.50 in. of rain possible) and breezy (Wind: S 15-25 mph),
• Mostly cloudy and a bit cooler with rain Monday (1.50 in. of rain possible), evening coastal rain likely and a (%) chance of coastal showers late Monday night while inland evening rain and with a (0%) chance of inland rain and snow showers and cooler late Monday night (0.25 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), a good (50%) chance of rain and a bit cooler Tuesday afternoon, a good (50%) chance of evening showers, then a good (50%) chance of rain and snow showers late Tuesday night.
• lows 38-42 cooling to 35 Monday night warming to 37 Tuesday night highs 56-50.
• Mostly cloudy with a good (50%) chance of AM showers, partly cloudy with a (40%) chance of showers and a bit warmer Wednesday afternoon, just mostly clear in the evening, partly cloudy late Wednesday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of showers Thursday afternoon, a (0%) chance of evening showers, rain likely (70%) late at night,
• Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers and a bit cooler Friday afternoon, a good (50%) chance of showers Friday night,
• Mostly cloudy with a good (50%) chance of AM showers, then showers likely (70%) Saturday afternoon.
• highs 53-56 cooling to 54 Friday and Saturday lows 34-40 cooling to 37 Friday night. (seasonal averages high 55 low 42)

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

• Partly cloudy with a slight (20%) chance of evening snow showers, mostly cloudy with a good (50%) chance of late evening rain and snow showers changing to showers and snow late tonight,
• Mostly cloudy and a bit cooler with rain and snow (0.25 in. of rain possible, 1-2 in. of snow possible) Sunday (Daylight Saving time starts 2 am), rain and snow Sunday night (0.25 in. of rain possible, 2 in. of snow possible).
• Mostly cloudy and a bit warmer with rain and snow Monday (2-6 in. of snow possible, snow possibly heavy at times) and breezy  (Wind: SW 15-25 mph gusts to 40 increasing to 45 mph), evening snow (snow possibly heavy at times), snow showers likely (70%) and colder at night (2-6 in. of snow possible) Monday night,
• Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Tuesday (1-4 in. of snow possible), evening rain and snow showers likely (70%), then snow showers likely (70%) late Tuesday night.
• snow level 3,500 ft. rising to 4,000 ft. late tonight, 5,000 ft. rising to 5,500 ft. Sunday afternoon, 5,500 ft. Sunday night, 5,000 ft. falling to 4,000 ft. Monday afternoon, 5,000 ft. falling to 4,000 ft. late Monday night, 3,000 ft. rising to 4,000 ft. Tuesday afternoon, then 3,000 ft. falling to 2,000 ft. Tuesday night.
• lows 23-34 cooling to 22 Monday night and Tuesday night highs 39-35.
• Clouds and sun with a good (50%) chance of AM snow showers, a mix of clouds and sun with a good (50%) chance of rain and snow showers and a bit cooler Wednesday afternoon, partly cloudy with a slight (20%) chance of evening snow showers, just mostly clear late Wednesday night,
• Partly cloudy and a bit warmer Thursday, partly cloudy with a (30%) chance of evening rain and snow showers, mostly cloudy with a (30%) chance of with rain and snow showers late at night,
• Mostly cloudy with rain and snow showers likely (70%) Friday, rain and snow showers Friday night,
• Clouds and sun with a good (50%) chance of AM rain and snow showers, then rain and snow showers likely (70%) Saturday afternoon.
• snow level 1,500 ft. rising to 3,000 ft. Wednesday, 3,000 ft. Wednesday evening, free air freezing level 3,000 ft. late Wednesday night, 4,500 ft. Thursday morning, snow level 4,000 ft. Thursday afternoon, 4,500 ft. falling to 4,000 ft. late Thursday night, 4,500 ft. rising to 5,000 ft. Friday afternoon, 4,500 ft. falling to 4,000 ft. late Friday night, then 3,500 ft. rising to 4,500 ft. Saturday afternoon.
• highs 34-40 lows 19-27 cooling to 24 Friday night.

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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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