Another  warm front is headed our way bringing some more rain and mild temperatures since the airflow is coming from near Hawaii.  Weak high pressure builds in late today. The high pressure ridge gets a little stronger Thursday (see blue arrows offshore making an arch over the Pacific Northwest) then allows yet another storm to move in as it weakens late in the week (Friday) bringing back a better chance of rain.

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Advisories: None at this time.

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Forecast for the Southern Willamette Valley:  Cloudy today with AM rain likely (60%) then a good (50%) chance of showers in the afternoon high 59.  Partly cloudy and cooler with fog late tonight low 32-34. A mix of clouds and sun Thursday after AM fog, partly cloudy Thursday night high near 50 low  39. Mostly cloudy with a good (50%) chance of AM rain and some freezing rain Friday then a good (50%) chance of afternoon and rain likely (60%) Friday night high 50 low 40. Saturday  mostly cloudy with a good (50%) chance rain and a slight (20%) chance of rain at night high near 52 low 39. Just a slight (20%) chance of rain Sunday high 52. A good (50%) chance of rain Sunday night through Monday night  lows near 40 highs near 50. Rain likely (60%) Tuesday high 50.

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Forecast for the Umpqua Basin including Roseburg:  Rain with patchy fog this morning then rain likely (60%) this afternoon high 56. Mostly cloudy tonight with a (30%) chance of rain, fog late low 45. Early morning and late night fog Thursday and Thursday night otherwise mostly cloudy a slight (20%) chance of afternoon showers, then a (30%) chance of rain at night high near 55 low near 45. Rain likely (60%)  Friday high near 59. Mostly cloudy with rain likely (60%) Friday night  low 43 . Partly cloudy Saturday with AM fog & a () chance of rain then afternoon rain likely (60%) high 56. A (40%) chance of rain Saturday night and a slight (20%) chance of AM showers and afternoon rain Sunday low 40 high near 52. Mostly cloudy Sunday night a good (50%) chance of rain and rain likely (60%) Monday and Monday night lows near 40 high near 50. Mostly cloudy Tuesday with  a good (50%) chance of rain high 52.

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Forecast for the South Oregon Coast: Cloudy with AM fog and rain likely (60%) today with afternoon showers likely (60%) along the coast and a good (50%) chance inland high near 58. Mostly cloudy with areas of late night  fog tonight with a (30%) chance of showers low in the upper 40s. Mostly cloudy after AM fog Thursday with a (40%) chance of showers high 56. Rain likely (60%) at night with fog late  low 49. Mostly cloudy with rain likely (60%) Friday through Saturday highs mid 50s  low mid to upper 40s. A (40%) chance of rain Saturday night and a good (50%) chance Sunday low 44 high 55. Mostly cloudy with a good (50%)) chance of rain Sunday night and Monday low 43 high 54. Rain likely (60%) Monday night and Tuesday (breezy Monday night) low 43 high 53.

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Forecast for the Cascades of Lane County:  Rain and snow  showers likely (60%) today snow level falling from 5,000′ to 3,000′ 1″ of snow. Partly cloudy tonight with a slight (20%) chance of evening snow showers and colder snow level of  2,500′. A mix of clouds and sun Thursday free air freezing level rising to 3,000′. Partly cloudy Thursday night free air freezing level 5,000′. A  good (50%) chance of AM rain and freezing rain then rain likely (60%) Friday afternoon snow level 6,000′. Rain and snow likely (60%) Friday night snow level 4,000′ Mostly cloudy with a good (50%) chance of rain and snow Saturday and Saturday night  snow level falling from 5,000′ to 4,500′. Mostly cloudy Sunday with a slight (20%) chance of rain and snow 5,000′. A (30%) chance of rain and snow Sunday night snow level  4,500′.  Mostly cloudy Monday with a (40%) chance of rain snow level rising to 5,500′. A good (50%) chance of rain and snow Monday night snow level 4,000′.  Tuesday rain and snow likely (60%) snow level 4,500′ ‘.

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Another  warm front is headed our way bringing some more rain and mild temperatures since the airflow is coming from near Hawaii.  Weak high pressure builds in on Wednesday. The high pressure ridge gets a little stronger Thursday (see blue arrows offshore making an arch over the Pacific Northwest) then allows yet another storm to move in as it weakens late in the week (Friday) bringing back a better chance of rain.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL NOON WEDNESDAY FOR THE WESTERN COLUMBIA GORGE AND THE UPPER HOOD RIVER VALLEY.

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Forecast for the Southern Willamette Valley:  Mostly cloudy with rain likely (60%) this evening and rain overnight the low very mild near 50. Cloudy Wednesday with AM rain likely (60%) then a (50%) chance of showers in the afternoon high 54.  Partly cloudy and cooler with fog late Wednesday night low 39. A mix of clouds and sun Thursday after AM fog, partly cloudy Thursday night high near 50 low in the mid 39. Mostly cloudy with rain likely (60%) Friday and a (50%) chance Friday night high 50 low 40. Saturday  mostly cloudy with a good (50%) chance rain and a slight (20%) chance of rain at night high near 50 low 38. Just a slight (20%) chance of rain Sunday high 52. A good (50%) chance of rain Sunday night through Tuesday day lows near 40 highs near 50.

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Forecast for the Umpqua Basin including Roseburg:  Rain with patchy fog tonight low near 47. Rain likely with patchy fog Wednesday  morning then a good (50%) chance of showers in the afternoon high 56. Mostly cloudy Wednesday night with a slight (20%) chance of rain, fog late low 45. Early morning and late night fog Thursday and Thursday night otherwise mostly cloudy a slight (20%) chance of afternoon rain and showers likely (60%) at night high near 55 low near 45. Rain likely (60%)  Friday high near 56. Mostly cloudy with rain likely (60%) Friday night and Saturday low 43 high 53. A slight (20%) chance of rain Saturday night and a (30%) chance Sunday low 36 high near 52. Mostly cloudy Sunday night a good (50%) chance of rain and rain likely (60%) Monday and Monday night lows near 40 high near 50. Mostly cloudy Tuesday with  a good (50%) chance of rain high 52.

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Forecast for the South Oregon Coast: Rain with patchy fog tonight low 50. Cloudy with AM fog and rain likely (60%) Wednesday with afternoon showers likely (60%) along the coast and a good (50%) chance inland high near 58. Mostly cloudy with areas of late night  fog Wednesday night with a slight (20%) chance of showers low in the upper 40s. Mostly cloudy after AM fog Thursday with a slight (20%) chance of showers high 54. A (40%) chance of rain at night low 49. Mostly cloudy with rain likely (60%) Friday through Saturday highs mid 50s  low upper 40s. A slight  (20%) of Saturday night and Sunday  low 43 high 55. Mostly cloudy with a good (50%)) chance of rain Sunday night and Monday low 45. Rain likely (60%) Monday night and Tuesday (breezy Monday night) low 43 high 53.

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Forecast for the Cascades of Lane County: A good (50%) chance of rain this evening then likely (60%) at night snow level 7,000′. AM Rain with afternoon showers Wednesday snow level falling to 5,500′ 4-8″ of snow. Partly cloudy Wednesday night with a free air freezing level of  8,000′. A mix of clouds and sun Thursday free air freezing level falling to 5,500′. Partly cloudy Thursday night free air freezing level 7,000′. Rain likely (60%) Friday snow level 7,000′. Rain and snow likely (60%) Friday night snow level 4,500′ Mostly cloudy with a good (50%) chance of rain and snow Saturday and Saturday night  snow level falling from 5,000′ to 4,500′. Mostly cloudy Sunday with a slight (20%) chance of rain and snow 5,000′. A (30%) chance of rain and snow Sunday night snow level  4,500′.  Mostly cloudy Monday with a (40%) chance of rain snow level rising to 5,500′. A good (50%) chance of rain and snow Monday night and Tuesday snow level 4,500′ to 4,000′.

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Congratulations Diane you are the first person to answer this week’s quiz correctly. Your number of 326 billion billion gallons isn’t exactly right, but it is very close. According to my source the Earth’s oceans contain 350 billion billion gallons of water. Your guess is close enough. Please go to the contact page on this site and email me so we can figure out when you will want your free week of personalized weather forecasts. You can see her answer posted as a comment on my last forecast post for January 4th. We’ll have another weather quiz question starting next Monday. Tim

A warm front pushed warmer  air through Oregon that is moving in on the “Pineapple Express” (warm moist air from Hawaii). Weak high pressure builds today then weakens  allowing another weak front to try to move in tonight and Wednesday. The ridge gets a little stronger Thursday then allows yet another storm to move in late in the week (Friday) bringing back a better chance of rain.

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Advisories: None at this time.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy with showers likely (60%) today high in the low 50s. Tonight mostly cloudy  with a (50%) chance of rain  low 42. Mostly cloudy with rain likely (60%) Wednesday then partly cloudy at night high near 50 low a cooler 35. A mix of clouds and sun Thursday partly cloudy Thursday night high near 50 low in the mid 30s. Mostly cloudy with rain likely (60%) Friday and a (50%) chance Friday night high 50 low 40. Saturday and  Saturday night  mostly cloudy with a (40%) chance rain of high near 50 low down to the low 30s. Just a slight (20%) chance of rain Sunday high 50. A (30%-40%) chance of rain Sunday night and Monday low 37 high 50.

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Forecast for the Umpqua Basin including Roseburg:  AM fog and rain likely (60%) then mostly cloudy today with a good (50%) chance of rain high 52. A good (50%) chance of rain at night with patchy fog late low near 40. Mostly cloudy with morning fog Wednesday with rain likely (60%) high 50. Mostly cloudy Wednesday night with a slight (20%) chance of rain, fog late low 42. Early morning and late night fog Thursday and Thursday night otherwise mostly cloudy a (30%) chance of rain at night high near 50 low near 40. AM fog with a (40%) chance of rain Friday high near 48. Mostly cloudy with a good (50%) chance of rain Friday night low 40. Rain likely (60%) Saturday with a slight (20%) chance of rain at night  high near 50 low in the upper 30s. Mostly cloudy with patchy  early morning fog Sunday with a (30%) chance of rain high near 50. Partly cloudy Sunday night with a good (50%) chance rain low 38. AM fog mostly cloudy Monday with  rain likely (60% high 50.

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Forecast for the South Oregon Coast: Rain likely (60%) this morning fog inland  high in the mid 50s. Rain likely (60%) tonight, patchy fog inland low in the upper 40s. Patchy AM fog inland, mostly cloudy with rain likely (60%) Wednesday high near 58. Mostly cloudy with areas of late night  fog Wednesday night with a (30%) chance of rain low in the low 40s. Mostly cloudy after AM fog Thursday with a (30%) chance of rain late at night high 54 low 44. Mostly cloudy with a  (20%) chance of rain Friday and Friday night high low. Rain likely (60%) Saturday with a (30%) chance of rain at night high 53 low 40. Mostly cloudy with rain likely (60%)  Sunday, partly cloudy at night a () chance of rain. A good (50%) chance of rain Monday high 56.

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Forecast for the Cascades of Lane County: Occasional rain today with a good (50%) chance of rain at night snow level 6,000′. Rain and snow likely (60%) Wednesday snow level 6,000′ . Partly cloudy Wednesday night with a slight (20%) chance of showers snow level falling to 4,500′. A mix of clouds and sun Thursday free air freezing level holding at 5,500′. Partly cloudy Thursday night free air freezing level 5,500′. Rain likely Friday snow level 6,500′. Rain and snow likely (60%) Friday night snow level 4,500′ Mostly cloudy with a good (50%) chance of rain Saturday and a slight (20%) chance of rain and snow Saturday night snow level 5,000′. Mostly cloudy Sunday with a (40%) chance of snow and a slight (20%) chance of rain  snow level 4,500′. A (30%) chance of rain and snow Sunday night snow level  5,000′.  Mostly cloudy Monday with a (40%) chance of rain snow level rising to 6,000′.

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Here again is my weather quiz question for this week. How much water is in the oceans of the  Earth? Your answer should be in gallons. Please place your answer as a comment to this post. The first person to post the correct answer will win one week of free personalized forecasts tailored to your needs. Good luck.

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A warm front pushed warmer  air through Oregon that is moving in on the “Pineapple Express” (warm moist air from Hawaii). Weak high pressure builds Tuesday then weakens  allowing another weak front to try to move in Tuesday night and Wednesday. The ridge gets a little stronger Thursday then allows yet another storm to move in late in the week (Friday) bringing back a better chance of rain.

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Advisories: None at this time.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy with showers likely (60%) tonight and Tuesday low in the low 40s high in the low 50s. Tuesday night mostly cloudy  with a (50%) chance of rain  low 42. Mostly cloudy with rain likely (60%) Wednesday then partly cloudy at night high near 50 low a cooler 35. A mix of clouds and sun Thursday partly cloudy Thursday night high near 50 low in the mid 30s. Mostly cloudy with rain likely (60%) Friday and a (50%) chance Friday night high 50 low 40. Saturday and  Saturday night  mostly cloudy with a (40%) chance rain of high near 50 low down to the low 30s. Just a slight (20%) chance of rain Sunday high 50. A (30%-40%) chance of rain Sunday night and Monday low 37 high 50.

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Forecast for the Umpqua Basin including Roseburg:  Showers likely (60%) tonight with patchy fog late low 40. AM fog and rain likely (60%) then mostly cloudy Tuesday with a good (50%) chance of rain high 52. A good (50%) chance of rain at night with patchy fog late low near 40. Mostly cloudy with morning fog Wednesday with rain likely (60%) high 50. Mostly cloudy Wednesday night with a slight (20%) chance of rain, fog late low 42. Early morning and late night fog Thursday and Thursday night otherwise mostly cloudy a (30%) chance of rain at night high near 50 low near 40. AM fog with a (40%) chance of rain Friday high near 48. Mostly cloudy with a good (50%) chance of rain Friday night low 40. Rain likely (60%) Saturday with a slight (20%) chance of rain at night  high near 50 low in the upper 30s. Mostly cloudy with patchy  early morning fog Sunday with a (30%) chance of rain high near 50. Partly cloudy Sunday night with a good (50%) chance rain low 38. AM fog mostly cloudy Monday with  rain likely (60% high 50.

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Forecast for the South Oregon Coast: Mostly cloudy showers likely (60%) tonight with fog late inland low 46.  Rain likely (60%) Tuesday morning fog inland  high in the mid 50s. Rain likely (60%) Tuesday night, patchy fog inland low in the upper 40s. Patchy AM fog inland, mostly cloudy with rain likely (60%) Wednesday high near 58. Mostly cloudy with areas of late night  fog Wednesday night with a (30%) chance of rain low in the low 40s. Mostly cloudy after AM fog Thursday with a (30%) chance of rain late at night high 54 low 44. Mostly cloudy with a  (20%) chance of rain Friday and Friday night high low. Rain likely (60%) Saturday with a (30%) chance of rain at night high 53 low 40. Mostly cloudy with rain likely (60%)  Sunday, partly cloudy at night a () chance of rain. A good (50%) chance of rain Monday high 56.

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Forecast for the Cascades of Lane County: Evening showers, then likely (60%) overnight, snow level 6,500′. Occasional rain Tuesday with a good (50%) chance of rain at night snow level 6,000′. Rain and snow likely (60%) Wednesday snow level 6,000′ . Partly cloudy Wednesday night with a slight (20%) chance of showers snow level falling to 4,500′. A mix of clouds and sun Thursday free air freezing level holding at 5,500. Partly cloudy Thursday night free air freezing level 5,500′. Rain likely Friday snow level 6,500′. Rain and snow likely (60%) Friday night snow level 4,500′ Mostly cloudy with a good (50%) chance of rain Saturday and a slight (20%) chance of rain and snow Saturday night snow level 5,000′. Mostly cloudy Sunday with a (40%) chance of snow and a slight (20%) chance of rain  snow level 4,500′. A (30%) chance of rain and snow Sunday night snow level  5,000′.  Mostly cloudy Monday with a (40%) chance of rain snow level rising to 6,000′.

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Here again is my weather quiz question for this week. How much water is in the oceans of the  Earth? Your answer should be in gallons. Please place your answer as a comment to this post. The first person to post the correct answer will win one week of free personalized forecasts tailored to your needs. Good luck.

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Here is my weather quiz question for this week. How much water is in the oceans of the  Earth? Your answer should be in gallons. Please place your answer as a comment to this post. The first person to post the correct answer will win one week of free personalized forecasts tailored to your needs. Good luck.

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A warm front pushed warmer  air through Oregon that is moving in on the “Pineapple Express” (warm moist air from Hawaii). A cold front is on the way and will bring more valley rain and mountain snow. Weak high pressure builds Tuesday then weakens  allowing another weak front to try to move in Wednesday. The ridge gets a little stronger Thursday (arrows moving up and over the Pacific Northwest) then allows yet another storm to move in late in the week (Friday) bringing back a better chance of rain.

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Advisories: None at this time.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy, patchy fog with a (50%) chance of rain this morning  and rain likely (60%) this afternoon high 52. Mostly cloudy with showers likely tonight low in the low 40s. Showers likely (60%) Tuesday high in the low 50s. Tuesday night mostly cloudy  with a (40%-50%) chance of rain Tuesday night low 40. Mostly cloudy with a  (30%) chance of rain Wednesday then partly cloudy at night high near 50 low a cooler 35. A mix of clouds and sun Thursday partly cloudy Thursday night high in the upper 40s low in the mid 30s. Mostly cloudy with a (50%) chance of rain Friday and Friday night high in the upper 40s low in the upper 30s. Saturday and  Saturday night  a (30%) chance rain of high near 50 low down to the low 30s. Just a slight (20%) chance of rain Sunday high 50.

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Forecast for the Umpqua Basin including Roseburg:   AM fog and a (30%)  chance of rain today high in the low 50s. Rain likely (60%) tonight with patchy fog low 40. AM fog then mostly cloudy Tuesday with a good (50%) chance of rain high 54. A (40%) chance of rain at night with patchy fog late low near 40. Mostly cloudy with morning fog Wednesday and a good (50%) chance of rain high 50. Late night and early morning fog and mostly cloudy Wednesday night through Thursday night highs in the upper 40s lows near 40. AM fog with a good (50%) chance of rain Friday high near 48. Mostly cloudy Friday night and Saturday with AM and late night fog and a good  (50%) chance of rain low in the upper 30s  high near 50. Mostly cloudy with patchy late night and early morning fog Saturday night and Sunday with a (20%-30%) chance of rain low 38 high again 50.

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Forecast for the South Oregon Coast: Mostly cloudy & breezy today with patchy AM fog inland and a (30%) chance of rain with afternoon rain likely (60%) high near 55.  Evening rain along the coast otherwise rain likely (60%) tonight with fog late low near 43. Rain likely (60%) Tuesday along the coast, morning fog with a good (50%) chance of rain inland high in the upper 50s. A good (50%) chance of rain Tuesday night, patchy fog inland lows in the mid 40s. Patchy AM fog mostly cloudy with a (40%) chance of rain Wednesday high near 60. Mostly cloudy with areas of late night and early morning fog Wednesday night through Thursday night lows in the mid 40s high 56. Mostly cloudy with a good (50%) chance of rain Friday through Saturday high 54 low 42 . A slight (20%) chance if rain Saturday night and a (40%) chance of rain Sunday low near 40 high 53.

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Forecast for the Cascades of Lane County:  Mostly cloudy with rain today snow level 6,000′ rising to 7,000′. Evening showers, then likely overnight, snow level 6,500′. Showers likely (60%) Tuesday with a good (50%) chance of rain at night snow level 6,000′. A chance of rain and a slight (20%) chance of snow Wednesday snow level 6,000′. Partly cloudy Wednesday night with a slight (20%) chance of showers snow level 6,000′. A mix of clouds and sun Thursday free air freezing level holding at 5,500. Partly cloudy Thursday night free air freezing level 5,500′. A good (50%) chance of rain Friday snow level 6,500′. Mostly cloudy with a (30%) chance of rain Saturday and rain and snow Saturday night and Sunday snow level 5,000′ Saturday and Saturday night and 4,000′ Sunday.

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A warm front still offshore will move through Oregon early today  followed by another front (a cold front) tonight into Monday. More storms will move through next week assuring we’ll have rain in the valleys and snow in the mountains for the near future.

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Advisories: None at this time.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy with a slight (20%) chance of rain this morning then a mix of clouds and sun in the afternoon high in the low 50s. A slight (20%) chance of rain tonight low tear 40. A good (50%) chance of rain Monday and a good (50%) chance  of showers Monday night high 50 low 40. Mostly cloudy with again a good (50%) chance of  showers Tuesday high again near 50. Tuesday night through Thursday a (40%-50%) chance of rain highs in the upper 40s to 50 lows in the mid to upper 30s. Rain likely (60%) Thursday night and Friday low in the mid 30s high again near 50. Mostly cloudy with a good (50%) chance of rain Friday night and Saturday low near 35 high near 50.

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Forecast for the Umpqua Basin including Roseburg:   AM fog then partly cloudy today high near 50 and a slight (20%) chance of rain tonight fog late low 40. AM fog then cloudy with rain likely (60%) Monday and a good (50%) chance of rain Monday night more fog late high in the upper 40s  low near 40. Mostly cloudy with a (40%) chance of rain Tuesday through Thursday  night highs in the upper 40s lows near 40. AM fog with rain likely (60%) Friday and a bit cooler high near 43. Mostly cloudy Friday night and Saturday with a good (50%) chance of rain low in the upper 30s  high near 50.

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Forecast for the South Oregon Coast: Mostly cloudy  today  with patchy fog inland high near 50 and a slight  (20%) chance of rain tonight with fog low near 42. Rain likely (60%) Monday high 50. Mostly cloudy Monday night with rain likely (60% ) along the coast and a good (50%) chance of rain inland low 46. Tuesday through Thursday night mostly cloudy with a (40%-50%) chance of rain (AM fog Tuesday) highs mid 50s lows in the mid 40s. Mostly cloudy rain likely (60%) Friday and Friday night highs 55 lows near 42. A (40%) chance of rain Saturday high 52.

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Forecast for the Cascades of Lane County:  A (30%) chance of snow and a slight (20%) chance of rain this morning then a chance of afternoon rain snow level rising to 5,500′ and a good (50%) chance of rain and snow tonight snow level 5,500′. Mostly cloudy with rain likely (60%) Monday snow level 5,500′. Rain and snow showers likely (60%) Monday night snow level 5,000′. Showers likely (60% )Tuesday snow level 5,500′. Mostly cloudy with a good (50%) chance of rain Tuesday night and Wednesday snow level holding at 5,500′. Mostly cloudy with a (50%) chance of rain and snow Wednesday night snow level 5,000′. A (40%) chance of rain Thursday snow level rising to 6,000. Mostly cloudy rain and snow likely (60%) Thursday night snow level falling to 4,500′. Rain likely (60%)  Friday snow level 5,500′. A good (50%) chance of rain and snow Friday night and a (40%) chance Saturday snow level 4,500′.

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A warm front still offshore will move through Oregon overnight into Sunday morning followed by another front Sunday night into Monday. More storms will move through next week assuring we’ll have rain in the valleys and snow in the mountains for the near future.

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Advisories: None at this time.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy tonight with a slight (20%) chance of showers low near 33-36. Mostly cloudy with a slight (20%) chance of rain Sunday morning then a mix of clouds and sun in the afternoon high in the low 50s. A slight (20%) chance of rain Sunday night low tear 40. A good (50%) chance of rain Monday and a good (50%) chance  of showers Monday night high 50 low 40. Mostly cloudy with again a good (50%) chance of  showers Tuesday high again near 50. Tuesday night through Thursday a (40%-50%) chance of rain highs in the upper 40s to 50 lows in the mid to upper 30s. Rain likely (60%) Thursday night and Friday low in the mid 30s high again near 50. Mostly cloudy with a good (50%) chance of rain Friday night and Saturday low near 35 high near 50.

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Forecast for the Umpqua Basin including Roseburg:  Mostly cloudy with a (30%) chance of showers tonight with patchy fog late snow level 3,500′ lowering to 1,000′ late at night low 33-35. AM fog then partly cloudy Sunday high near 50 and a slight (20%) chance of rain Sunday night fog late low 40. AM fog then cloudy with rain likely (60%) Monday and a good (50%) chance of rain Monday night more fog late high in the upper 40s  low near 40. Mostly cloudy with a (40%) chance of rain Tuesday through Thursday  night highs in the upper 40s lows near 40. AM fog with rain likely (60%) Friday and a bit cooler high near 43. Mostly cloudy Friday night and Saturday with a good (50%) chance of rain low in the upper 30s  high near 50.

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Forecast for the South Oregon Coast: Mostly cloudy a (30%) chance of showers tonight with fog late low in the mid 30s. Mostly cloudy  Sunday  with patchy fog inland high near 50 and a slight  (20%) chance of rain Sunday night with fog low near 42. Rain likely (60%) Monday high 50. Mostly cloudy Monday night with rain likely (60% ) along the coast and a good (50%) chance of rain inland low 46. Tuesday through Thursday night mostly cloudy with a (40%-50%) chance of rain (AM fog Tuesday) highs mid 50s lows in the mid 40s. Mostly cloudy rain likely (60%) Friday and Friday night highs 55 lows near 42. A (40%) chance of rain Saturday high 52.

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Forecast for the Cascades of Lane County:  Mostly cloudy with a (30%) chance of rain and snow showers tonight snow level 4,000′ rising to 4,500 late. A (30%) chance of snow and a slight (20%) chance of rain Sunday morning then a chance of afternoon rain snow level rising to 5,500′ and a good (50%) chance of rain and snow Sunday night snow level 5,500′. Mostly cloudy with rain likely (60%) Monday snow level 5,500′. Rain and snow showers likely (60%) Monday night snow level 5,000′. Showers likely (60% )Tuesday snow level 5,500′. Mostly cloudy with a good (50%) chance of rain Tuesday night and Wednesday snow level holding at 5,500′. Mostly cloudy with a (50%) chance of rain and snow Wednesday night snow level 5,000′. A (40%) chance of rain Thursday snow level rising to 6,000′. Mostly cloudy rain and snow likely (60%) Thursday night snow level falling to 4,500′. Rain likely (60%)  Friday snow level 5,500′. A good (50%) chance of rain and snow Friday night and a (40%) chance Saturday snow level 4,500′.

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A frontal system , has brought us more rain with higher elevation mountain snows. An upper level trough of Low Pressure (shaded area) is going to add to our moisture flow. Weak high pressure behind the trough will dry us out a bit for today. Another warm front will bring more precipitation Sunday and Monday.

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Advisories:   A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE NORTH CASCADES AND THE CASCADES OF LANE COUNTY.

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy this morning a (40%) chance of showers then a mix of clouds and sun with a slight (20%) chance of showers in the afternoon high in the upper 40s. Mostly cloudy tonight with a slight (20%) chance of showers low near 32-34. Mostly cloudy with a slight (20%) chance of rain Sunday morning then a mix of clouds and sun and a slight (20%) chance Sunday night  high near 50 lows in the upper 30s. A  (50%) chance of showers Monday and and Monday night high 47 low 39. Mostly cloudy with a (50%-60%) chance of  rain Tuesday through Thursday night  highs in the upper 40s to 50 lows in the mid to upper 30s. Rain likely (60%) Friday high again near 50.

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Forecast for the Umpqua Basin including Roseburg:  Cloudy with AM fog a (40%) chance of showers today (snow level 3,500′) high near 50. Mostly cloudy with a (30%) chance of showers tonight with patchy fog late low 35-37. AM fog then partly cloudy Sunday high in the low 50s and a slight (20%) chance of rain Sunday night fog late low 40. AM fog then cloudy with a (40%) chance of rain Monday and Monday night more fog late high in the upper 40s  low near 40. Mostly cloudy with a (50%-60%) chance of rain Tuesday through Wednesday high 42-45 low 39. Rain likely Wednesday night and Thursday  low 37  high 44. Rain likely (60%) again Thursday night and Friday low 36 high near 40.

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Forecast for the South Oregon Coast:  AM fog, mostly cloudy a slight (20%) chance of showers today and a (30%) chance at night with fog late high 50-53 low 44. Partly cloudy in the morning, then mostly cloudy  Sunday  with patchy fog high in the low 50s and a slight  (20%) chance of rain Sunday night with fog low near 42. A (40%-50%) chance of rain  Monday through Tuesday night highs low to mid 50s lows in the mid 40s. Mostly cloudy rain likely (60%) Wednesday through Friday highs 50-55 lows near 45.

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Forecast for the Cascades of Lane County:  Rain and snow showers likely today snow level 3,000′ to 3,500′ 2″ of snow. Mostly cloudy with a (30%) chance of rain and snow showers tonight snow level 3,500′ to 4,000′ late. A chance of snow and a slight (20%) chance of rain Sunday morning then a chance of afternoon rain snow level 5,500′ and a (40%) chance of rain Sunday night snow level 5,500′.  Mostly cloudy with a (40%) chance of rain and snow Monday snow level 5,500′. Rain and snow showers likely (60%) Monday night snow level 5,000′. A good (50%) chance of rain Tuesday through Wednesday snow level falling from 6,000′ to 5,500′. Mostly cloudy with a (50%) chance of rain and snow Wednesday night snow level 5,500′. Rain likely (60%) Thursday snow level 5,500′. Mostly cloudy rain and snow likely (60%) Thursday night and a good (50%) chance Friday snow level 4,500′.

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Nobody correctly answered this week’s weekly weather quiz. Here’ the question again. How much does the entire atmosphere of Earth weigh? Here is the answer. The volume of the troposphere, which contains most of the atmosphere’s mass, is about 5 trillion billion cubic yards and it weighs 5.1 million billion tons. I’ll have another weather quiz question for you Monday.

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A frontal system , has brought us more rain with higher elevation mountain snows. An upper level trough of Low Pressure (shaded area) is going to add to our moisture flow. Weak high pressure behind the trough will dry us out a bit for Saturday. Another warm front will bring more precipitation Sunday and Monday.

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Advisories:   A HIGH SURF ADVISORY IS IN EFFECT FROM UNTIL 6 AM SATURDAY FOR THE NORTH AND CENTRAL OREGON COAST  AND UNTIL 10 AM SATURDAY FOR THE SOUTH OREGON COAST. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON SATURDAY FOR THE NORTH CASCADES AND THE CASCADES OF LANE COUNTY.

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Forecast for the Central and Southern Willamette Valley:  Showers this evening and showers likely late tonight (60% ) low near 40. Mostly cloudy Saturday morning a (40%) chance of showers then a slight (20%) chance of showers in the afternoon high in the upper 40s. Partly cloudy Saturday night with a slight (20%) chance of showers low near 32-34. Mostly cloudy with a slight (20%) chance of rain Sunday and (40%) Sunday night  high near 50 lows in the upper 30s. A  (50%) chance of showers Monday and and Monday night high 47 low 39. Mostly cloudy with a (50%-60%) chance of  rain Tuesday through Thursday night  highs in the upper 40s to 50 lows in the mid to upper 30s. Rain likely (60%) Friday high again near 50.

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Forecast for the Umpqua Basin including Roseburg:   Showers likely (60%) tonight (snow level 3,500?) patchy fog late low near 40. Cloudy with AM fog a (40%) chance of showers Saturday (snow level 3,500′) high near 50. Mostly cloudy with a slight (20%) chance of showers Saturday night with patchy fog late low 35-37. AM fog then mostly cloudy Sunday high in the low 50s and a slight (20%) chance of rain Sunday night fog late low 40. AM fog then cloudy with a (40%) chance of rain Monday and Monday night more fog late high in the upper 40s  low near 40. Mostly cloudy with a (50%-60%) chance of rain Tuesday through Wednesday high 42-45 low 39. Rain likely Wednesday night and Thursday  low 37  high 44. Rain likely (60%) again Thursday night and Friday low 36 high near 40.

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Forecast for the South Oregon Coast:  Showers likely (60%) this evening then showers at night low 42-45. Mostly cloudy a (40%) chance of showers Saturday and a slight (20%) chance at night high 50-53 low 44. Partly cloudy  Sunday morning then mostly cloudy in the afternoon high in the low 50s and a slight  (20%) chance of rain Sunday night  low near 42. A (40%-50%) chance of rain  Monday through Tuesday night highs low to mid 50s lows in the mid 40s. Mostly cloudy rain likely (60%) Wednesday through Friday highs 50-55 lows near 45.

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Forecast for the Cascades of Lane County:  Rain and  snow showers and colder tonight snow level  3,500? 6-12? of snow. Rain and snow showers Saturday snow level 3,000? 1-4″ of snow. Partly cloudy with a (30%) chance of rain and snow showers Saturday night snow level 3,500? to 4,000′ late. A slight (20%)chance of rain Sunday snow level 5,500? and a (40%) chance of rain Sunday night snow level 5,500′.  Mostly cloudy with a (40%) chance of rain and snow Monday snow level 5,500?. Rain and snow showers likely (60%) Monday night snow level 5,000?. A good (50%) chance of rain Tuesday through Wednesday snow level falling from 6,000′ to 5,500′. Mostly cloudy with a (50%) chance of rain and snow Wednesday night snow level 5,500?.  Rain likely (60%) Thursday snow level 5,500?. Mostly cloudy rain and snow likely (60%) Thursday night and a good (50%) chance Friday snow level 4,500′.

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