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Sorry, but no winner this week. Here is the question stated again. You have probably heard the term “fronts” used to explain the boundaries between cold and warm air masses. Who first coined that term? Here is the answer. The term “front” was coined by a group of Scandinavian meteorologists led by Professor Vilhelm Bjerknes between 1918 and 1923. They put forward the theory that weather activity is concentrated in relatively narrow zones, which form the boundaries between warm and cold air masses. They called the zones “fronts” as an analogy with the battle fronts in World War I. I’ll have a new weekly weather quiz question for you starting next 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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Advisories: NONE AT THIS TIME.
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A high pressure ridge (“Arch” shape) has migrated to the East allowing an upper level trough of low pressure “U” shape) to build in from the Northwest behind the ridge. A series of ripples in that flow along with a frontal system will be moving through the Pacific Northwest bringing some clouds, cooler temperatures, and maybe even some drizzle. Temperatures will remain below normal until high pressure can push the low pressure East of us.
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Here are your detailed forecasts.**
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly clear tonight, partly cloudy Sunday and Sunday night, mostly cloudy Monday through Tuesday AM, a mix of clouds and sun Tuesday afternoon, then mostly cloudy Tuesday night lows 46-54 cooling to near 50 Tuesday night highs 79-70. Mostly cloudy Wednesday AM, a mix of clouds and sun with a slight (20%) chance of showers Wednesday afternoon, partly cloudy with a slight (20%) chance of showers in the evening, mostly cloudy Wednesday night, a mix of clouds and sun Thursday, partly cloudy in the evening, mostly cloudy Thursday night, a mix of clouds and sun Friday and Saturday, and partly cloudy Friday night highs 72-77 lows near 52. (seasonal averages high 81 low 50)
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The Pollen forecast for the Eugene/Springfield Area is for trees to be low, weeds to be moderate, and Grass to be very high. (Provided by Allergy and Asthma Research Group)
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Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, partly cloudy Sunday and Sunday evening, mostly cloudy Sunday night and Monday AM, mostly sunny Monday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of drizzle late Monday night and Tuesday AM, partly cloudy Tuesday afternoon, then mostly cloudy with a slight (20%) chance of showers Tuesday night lows 52-55 cooling to near 50 Tuesday night highs 82-76. Mostly cloudy with a slight (20%) chance of showers Wednesday, just mostly cloudy Wednesday night through Thursday night, then partly cloudy Friday through Saturday highs 73-83 lows 52-55 cooling to near 50 Friday night (seasonal averages high 85 low 54)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear this evening, mostly cloudy with patchy fog late tonight and Sunday AM, mostly cloudy in the afternoon, mostly cloudy with patchy fog and a slight (20%) chance of drizzle late Sunday night and Monday AM, mostly cloudy Monday afternoon and Monday night with a slight (20%) chance of drizzle late at night and early Tuesday AM, mostly cloudy in the afternoon, then mostly cloudy with a slight (20%) chance of showers Tuesday night lows 47-52 highs 62-64. Mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday evening, just mostly cloudy Wednesday night through Saturday AM, then partly cloudy Saturday afternoon highs 62-65 cooling to 62 Saturday lows near 52. (seasonal averages high 66 low 52).
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Forecast for the Cascades of Lane County: Mostly clear tonight, mostly sunny Sunday AM, partly cloudy Sunday afternoon through Monday evening, mostly cloudy at night, partly cloudy Tuesday with a slight (20%) chance of showers, then mostly cloudy with a slight (20%) chance of showers Tuesday night free air freezing level 12,000 ft. tonight through Monday night, snow level above 8,000 ft. Tuesday and Tuesday night lows 42-39 highs 72-57. Partly cloudy Wednesday with a slight (20%) chance of showers, partly cloudy in the evening, mostly cloudy Wednesday night, partly cloudy with a slight (20%) chance of showers Thursday, mostly cloudy with a slight (20%) chance of showers Thursday night, partly cloudy with a slight (20%) chance of showers Friday and Friday night, then just partly cloudy Saturday snow level above 8,000 ft. Wednesday through Friday night, free air freezing level rising to 13,000 ft. Saturday highs 58-67 lows near 40.
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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 EugeneDailyNews.com.
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