Here again for the last time this week is my weekly weather quiz question. Who discovered Halley’s comet? Please post your answer as a comment after the forecasts. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs. Good luck.

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An upper level trough of low pressure (Shaded “U” area with blue arrows into Northern California) and  a strong frontal system brought us wind and more rain Wednesday and and Thursday. Another upper level low pressure area will move down from off the coast of British Columbia keeping us under a wet and colder than normal weather pattern. Another storm system will approach the Oregon coast early next week.

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Advisories:   NONE AT THIS TIME.

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The Updated Pollen Count Forecast for the Eugene-Springfield area : Trees and Grass MODERATE, weeds Absent.

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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 this morning with rain changing to afternoon showers and a slight (20%) chance of thunderstorms and small hail high 56. Mostly cloudy with showers and a slight (20%) chance of isolated thunderstorms this evening then showers decreasing tonight low 39. Mostly cloudy Saturday with showers likely (60%) and a slight (20%) chance of  afternoon thunderstorms with a  (30%) chance of showers Saturday evening and a slight (20%) chance at night high 57 low 40. Mostly cloudy Sunday  morning then a mix of clouds and sun and a bit warmer in the afternoon with a slight (20%) chance of showers high 60. Partly cloudy Sunday night through Monday night lows 43-47 high 67. Partly cloudy Tuesday with a slight (20%) chance of showers then partly cloudy in the evening and mostly cloudy with a (20%) chance of showers at night high 66 low 44. Mostly cloudy with  a (40%) chance of showers Wednesday and Wednesday night high 67 low 44 . Mostly cloudy with just a slight (20%) chance of showers Thursday high 64 .

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with  rain and isolated thunderstorms this morning then showers and  isolated thunderstorms in the afternoon snow level falling to 3,000 ft. today high 56. Mostly cloudy with rain and snow showers and isolated thunderstorms this evening then rain and snow showers likely (60%) late tonight and Saturday morning and rain and snow showers likely (60%) and isolated thunderstorms in the afternoon, low 38 high 54. Mostly cloudy with (40%) chance of showers and isolated thunderstorms in the evening then a slight (20%) chance of showers late Saturday night snow level 3,000 ft. late low 35 . Mostly cloudy with  a slight (20%) chance of showers Sunday and Sunday evening high 62 low 45 . Mostly cloudy Monday morning then partly cloudy in the afternoon and Monday night, then partly cloudy Tuesday AM and mostly cloudy with a (40%) chance of showers in the afternoon highs 67-65 low 43. Mostly cloudy with a (50%) chance of showers Tuesday night and Wednesday morning then cooler with showers likely (60%) in the afternoon low 45 highs 62 . Mostly cloudy with a (40%) chance of showers Wednesday night and Thursday low 45 high 63 .

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy with rain and isolated thunderstorms this morning and showers with isolated thunderstorms this afternoon and showers tonight at the shore and showers and evening thunderstorms then showers late inland high 54 low 45 . Showers Saturday AM then afternoon showers likely (60%) with isolated thunderstorms at the shore and afternoon showers and isolated thunderstorms inland high 50. Mostly cloudy with a (40%) chance of showers Saturday night then a slight (20%) chance of showers Sunday and Sunday evening low 40 high 56 . Mostly cloudy Monday morning then partly cloudy in the afternoon and at night high 59 low 44. Partly cloudy Tuesday morning then mostly cloudy with a (40%) chance of showers then mostly cloudy with a (50%) chance of showers Tuesday night through Thursday highs 58-54 lows 50-44.

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Forecast for the Cascades of Lane County:  Snow this morning then snow showers this afternoon (1-3 in. of snow) and showers at night (2-4 in. of snow possible) snow level 3,000 ft. falling to 2,500 ft. at night high 35 low 25. Mostly cloudy with showers likely (60%) Saturday (1-3″ of snow) and a (40%) chance of showers at night snow level 2,500 ft. Saturday AM rising to 3,000 ft. in the afternoon and at night  high 40 low 25. Cloudy Sunday morning, a mix of clouds and sun in the afternoon with a (30%) chance of rain and snow showers snow level rising to 4,000 ft. high 45. Partly cloudy with a slight (20%) chance of showers Sunday night and just partly cloudy Monday and Monday night snow level 5,000 ft. Sunday night and  free air freezing level 6,000 ft. Monday and Monday night low 32 high 54. Partly cloudy with a slight (20%) chance of showers Monday night low 33. A mix of clouds and sun Tuesday morning and mostly cloudy with a (30%) chance of showers in the afternoon high 54. Mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday and (40%) Wednesday night with a (30%) chance of showers Thursday snow level 5,000 ft. lows near 35 highs 55-49 .

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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.