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A trough of low pressure (shaded area that’s “U” shaped ) is moving to the east and spreading south and high pressure is moving in after it. A weak frontal system has been coming through today and tonight. As the low pressure moves out high pressure behind it gave us a short brighter period today, but the weekend won’t be perfect. The next storm system will be moving in Sunday night and Monday (Here is its position Tuesday morning) bringing with it more precipitation.
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Advisories: NONE AT THIS TIME.
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The Pollen Count Forecast for the Eugene-Springfield area : Trees HIGH, Grass LOW, and Weeds ABSENT. From Allergy and Asthma Research Group.
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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 cloudy tonight and a mix of clouds and sun Sunday ( good day for the Eugene Marathon) then mostly cloudy with a (30%) chance of evening rain and rain likely (60%) late Sunday night lows 38-43 high 66. Mostly cloudy with showers likely (60%) Monday then partly cloudy with a (30%) chance of showers Monday night through Wednesday highs 59 Monday, 53 Tuesday, and 60 Wednesday lows 40-35. Partly cloudy with a slight (20%) chance of showers Wednesday night through Thursday night lows 38-42 highs near 59-62. Partly cloudy with a slight (20%) chance of showers Friday and Friday night high 62 low 42. Partly cloudy with a (30%) chance of showers Saturday high 65 .
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) chance of showers this evening, and just mostly cloudy Sunday then mostly cloudy Sunday night with a (30%) chance of rain lows 40-45 high 66. Mostly cloudy with AM rain likely (60%) Monday and a (30%) chance of rain Monday night snow level 3,500 ft. Monday night lowering to 3,000 ft. late at night high 60 low 40. Mostly cloudy with a (30%) chance of showers Tuesday through Wednesday highs 58-60 low 36. Just a slight (20%) chance of showers Wednesday night and Thursday low 40 highs 66. Partly cloudy with a slight (20%) chance of showers Thursday night and Friday low 42 high 67. Mostly cloudy with a slight (20%) chance of showers Friday night and Saturday low 42 high 68.
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy tonight with a slight (20%) chance of showers inland this evening low 42. Mostly cloudy Sunday and Sunday night with a good (50%) chance of rain Sunday night high 62 low 47. Mostly cloudy with AM rain likely (60%) Monday then rain likely (60%) in the afternoon then a (30%) chance of showers Monday night high 52 low 40. Mostly cloudy with a (30%) chance of showers Tuesday through Wednesday snow level highs 56-58 low 40. Mostly cloudy with just a slight (20%) chance of showers Wednesday night and Thursday a slight (20%) chance of showers Friday low 42 high 62. Mostly cloudy with a slight (20%) chance of showers Friday night and Saturday low 44 high 62.
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Forecast for the Cascades of Lane County: Mostly cloudy with a (40%) chance of rain showers this evening then a slight (20%) chance of rain and snow showers late tonight snow level 4,500 ft. falling to 4,000 ft. late at night low 25. Mostly cloudy Sunday morning and a mix of clouds and sun and a bit warmer in the afternoon free air freezing level 5,000 ft. rising to 7,000 ft. then mostly cloudy with a (20%) chance of evening rain then rain late Sunday night snow level 7,000 ft. Sunday night high 54 low near 32. Mostly cloudy with rain and snow showers Monday snow level 6,000 ft. falling to 5,000 ft. in the afternoon high 47. Mostly cloudy breezy and cooler with a (30%) chance of rain and snow showers Monday night then mostly cloudy with a (30%) chance of snow showers Tuesday low 23 high 37. Mostly cloudy with a (30%) chance of rain and snow showers Tuesday night and partly cloudy with a (30%) chance of rain and snow showers Wednesday snow level 3,000 ft. rising to 4,500 ft. low 26 high near 44. Mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night and a slight (20%) chance of showers Thursday through Friday night snow level 4,000 ft. rising Wednesday to 4,500 ft., 4,000 ft. Wednesday night and 5,000 ft. Thursday and 4,500 ft. Thursday night rising to 7,000 ft. Friday lows near 28-30 highs 48-53. Partly cloudy with a (30%) chance of showers Saturday snow level 5,000 ft. high 50.
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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.