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Sorry, no winner this week. Here is my weekly weather quiz question for the last time. What is a “halo?” Here is the correct answer. Sun dogs, halos, and rainbows are all due to the same basic physics: refraction of sunlight through moisture in the atmosphere. Refraction is the bending of light as it passes through a material, such as the lenses of your glasses. The difference between halos and rainbows is two-fold: the shape and the material that the light refracts through. To form a rainbow, light refracts through and reflects from a drop of water in the atmosphere which is approximately spherical. On the other hand, a halo forms from refraction through a hexagonal crystal of ice. The angle through which light refracts depends on the surface and material it refracts through, so the angle between the sun and the light phenomenon we see in the sky is different for rainbows and halos. I’ll have a new weekly weather quiz question for you starting Monday. Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count.
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This is Winter Weather Safety and Awareness Week and the National Weather Service Forecast Office in Portland website has tips for you to keep safe during the upcoming Winter season. Just go to: WINTER AWARENESS WEEK.
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Advisories: NONE AT THIS TIME.
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Here are your College Football Forecasts for today: The rain gear will be needed for both locations.
Ducks vs Colorado at Autzen Stadium 12:00 PM – Cloudy with rain off and on at kickoff throughout the game, Temperature 53 warming to 58 by games end, Wind: S 10-15 mph.
Beavers at Washington CenturyLink Field Seattle, Washington 7:15 PM – Mostly cloudy with rain decreasing a bit to rain at times by the end of the game, Temperature hovering near 54, Wind: S 10-20 mph.
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A high pressure ridge (shaded “Arch” shape) has now turned our airflow more from over the ocean (the term for that is flattening as it looses it’s hump), for more rain chances today through the rest of the weekend. A frontal system moved through increasing chances of rain and another one following behind it will continue the rain for the rest of the weekend into next week. An upper level trough of low pressure will take over early next week continuing the wet weather pattern. A parade of frontal systems will continue this weather pattern for your workweek including Halloween. Prepare your Trick-or-Treaters for the wet weather.
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain this AM, rain likely (60%) this afternoon (0.10 in. of rain possible), cloudy with rain likely (70%) in the evening, a good (50%) chance of rain late tonight (under 0.10 in. of rain possible), cloudy with a good (50%) chance of rain Sunday (under 0.10 in. of rain possible), then rain likely (60%) Sunday night (0.10 in. of rain possible Sunday night) through Monday night highs 60-67 cooling to 64 Monday lows 53-50. Mostly cloudy with rain Tuesday through Wednesday night (Halloween), mostly cloudy with a (40%) chance of showers Thursday and Thursday night, then mostly cloudy with a good (50%) chance of rain Friday highs 62-55 lows 50-43. (seasonal averages high 61 low 43)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with coastal rain this AM and likely (70%) this afternoon with inland rain likely (70%) this afternoon (0.20 in. of rain possible), cloudy with coastal rain this evening and rain likely (70%) late tonight, inland rain likely (60%) in the evening with a good (50%) chance of rain late tonight (0.20 in. of rain possible), cloudy with coastal rain Sunday and and a good (50%) chance of inland rain Sunday (0.40 in. of rain possible), coastal rain likely (60%) at night with a good (50%) chance of evening inland rain and rain likely (70%) late Sunday night (0.25 in. of rain possible), then rain Monday (0.40 in. of rain possible) and Monday night highs 59-63 lows 55-52. Mostly cloudy with rain and breezy Tuesday through Wednesday (Halloween), rain Wednesday night, mostly cloudy with a good (50%) chance of showers Thursday and Thursday night, AM showers, then showers likely (60%) Friday afternoon highs 60-55 lows 52-45. (seasonal averages high 59 low 45)
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Forecast for the Cascades of Lane County: Mostly cloudy with rain today (0.50 in. of rain possible), rain tonight (0.50 in. of rain possible), rain Sunday, occasional rain at night (0.50 in. of rain possible), occasional rain Monday , then mostly cloudy with rain likely (60%) Monday night snow level 7,500 ft. rising to above 8,000 ft. this afternoon through Monday night highs 48-52 cooing to 50 Monday lows near 40 cooling to 37 Monday night. Mostly cloudy with rain likely (60%) Tuesday, occasional rain Tuesday night and Wednesday, showers likely (70%) Wednesday night (Halloween), showers likely (60%) Thursday and Thursday night, then mostly cloudy with a good (50%) chance of showers Friday snow level above 8,000 ft. Tuesday, and Tuesday night, 7,500 ft. Wednesday, 6,000 ft. Wednesday night and Thursday, 6,500 ft. Thursday night, then back up to 7,000 ft. Friday highs 52-43 warming to near 48 Friday lows 39-33.
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**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.
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Get your local Eugene-Springfield news on-line at Eugene Daily News.com
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