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Here is this week’s weather quiz question. What is a “Radiosonde” used for in weather forecasting? Extra credit points if you can tell me what new technology is replacing radiosondes. Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

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The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which is pushing lots of moisture and, for the most part, mild air  our way.  More storms will be coming at us including this frontal system that will come in for Christmas Day. Not much of a chance of a “White Christmas” in the valleys because it will be too warm. Our best chance of valley snows usually comes in January and February.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM 7 PM TONIGHT UNTIL 7 AM WEDNESDAY ABOVE 2,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.

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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 with a slight (20%) chance of evening rain, then rain likely (60%) late tonight (0.10 in. of rain possible), rain likely (60%) Wednesday AM, scattered afternoon showers (0.10 in. of rain possible), a slight (20%) chance of rain Wednesday night,  a (40%) chance of rain Thursday AM, a slight (20%) chance of rain Thursday afternoon and Thursday night lows 33-39 highs 45-47. Mostly cloudy with a  good (50%) chance of rain Friday (Christmas Eve), rain likely (60%) Friday night, rain Saturday (Christmas Day), then rain Saturday night through Tuesday highs 48-44 lows 37-40. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with a (40%) chance of showers this evening, rain late tonight (snow level 3,000 ft. falling to 2,500 ft. late, rain likely (60%) Wednesday AM, a (30%) chance of rain Wednesday  afternoon (snow level 2,500 ft. rising to 3,000 ft,), a slight (20%) chance of showers Wednesday night, cloudy with a  good (50%) chance of rain and snow showers Thursday AM, cloudy with a good (50%) chance of showers in the afternoon (snow level 2,000 ft. rising to 3,500 ft.), a slight (20%) chance of showers Thursday night (snow level 3,500 ft.) lows 35-39 highs 47-50. Cloudy with a good (50%) chance of showers Friday, rain likely (60%) Friday night (Christmas Eve), rain Saturday (Christmas Day), then rain Saturday night through Sunday evening, rain and snow showers Sunday night, then rain and snow showers likely (60%) Monday through Tuesday highs 50-45 lows 42-35. (seasonal averages high 48 low 34)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with coastal rain tonight, evening rain likely (60%) inland then rain late tonight, mostly cloudy with AM rain likely (60%), a good (50%) chance of showers Wednesday afternoon, cloudy with a  (40%) chance of showers Wednesday night, a good (50%) chance of showers Thursday and windy (wind: S 20-30 mph at the shore and S 15-25 mph inland, gusts to 40 mph increasing to 50 mph in the afternoon), a (40%) chance of showers Thursday night and windy (winds: S 20-30 at the shore and S 15-20 mph inland, gusts 50 mph decreasing to 40 mph late at night) lows 39-45 highs 49-55. Showers likely (60%) Friday and breezy, rain Friday night (Christmas Eve), rain Saturday (Christmas Day), rain and breezy Saturday night and Sunday, evening rain then showers late Sunday night and breezy, showers likely (60%) and breezy Monday, then showers likely (60%) Monday night and Tuesday highs 55-49 lows 46-39. (seasonal averages high 52 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with a good (50%) chance of rain and snow tonight, snow likely (60%) Wednesday AM, snow showers in the afternoon (1-4 in. of snow possible), mostly cloudy with a (30%) chance of rain and snow Wednesday night,  a (40%) chance of rain and snow Thursday and Thursday night snow level 3,500 ft. tonight, 3,000 ft. Wednesday through Thursday, and 4,000 ft. Thursday night lows 24-28 highs 35-32. Mostly cloudy with a good (50%) chance of rain Friday and Friday night (Christmas Eve), rain likely (60%) Saturday (Christmas Day), rain and snow Saturday night and Sunday, then snow Sunday night through Tuesday snow level 5,500 ft. Friday, 6,000 ft. Friday night, 5,500 ft. Saturday, falling to 4,000 ft. Saturday night, 3,000 ft. Sunday and Sunday night,  and 2,500 ft. Monday highs 38-30 lows between 29-23.

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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.

________________

Here is this week’s weather quiz question. What is a “Radiosonde” used for in weather forecasting? Extra credit points if you can tell me what new technology is replacing radiosondes. Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

The Winter Solstice takes place at 3:38 PM Pacific Time today to officially begin Winter.

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The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which is pushing lots of moisture and, for the most part, mild air  our way. We are still getting plenty of rain, in the Southern reaches of Western Oregon, from the storm that slid into Northern California (has been giving them flooding rain). More storms will be coming at us including this frontal system that will come in for Christmas Eve. Not much of a chance of a “White Christmas” in the valleys because it will be too warm. Our best chance of valley snows usually comes in January and February.

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Advisories: NONE AT THIS TIME.

________________

Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: AM clouds, then partly cloudy today with a slight (20%) chance of  showers, mostly cloudy with a slight (20%) chance of evening rain, then rain likely (60%) late tonight (0.10 in. of rain possible), rain likely (60%) Wednesday (0.10 in. of rain possible) and a good (50%) chance of rain Wednesday night (0.10 in. of rain possible),  a (40%) chance of rain Thursday, and rain likely (60%) Thursday night highs 48-44 lows 34-39. Mostly cloudy with rain likely (60%) Friday (Christmas Eve), Friday night, Saturday (Christmas Day), then rain likely (60%) Saturday night and Sunday, rain Sunday night changing to showers Monday highs 45-50 lows 40-37. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  AM patchy fog, mostly cloudy with a (40%) chance of showers today (snow level 2,500 ft. rising to 3,500 ft. in the afternoon), a (30%) chance of evening rain, rain likely (60%) late tonight (snow level 3,500 ft. lowering to 2,500 ft.), cloudy with AM rain likely (60%), a (30%) chance of rain Wednesday  afternoon (snow level 2,500 ft. rising to 3,500 ft,), a slight (20%) chance of evening rain, then a good (50%) chance of rain and snow showers late Wednesday night (snow level 3,000 ft. falling to 2,000 ft. late at night) highs 43-47 lows near 35. Cloudy with a  good (50%) chance of rain and snow Thursday AM, a good (50%) chance of rain and breezy in the afternoon (snow level 2,000 ft. rising to 3,500 ft.), a good (50%) chance of rain Thursday night and Friday (Christmas Eve), rain likely (60%) Friday night, rain Saturday (Christmas Day), then rain likely (60%) Saturday night through Sunday night (breezy Sunday), and mostly cloudy with showers likely (60%) and breezy Monday highs 44-49 lows 37-42. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy and breezy (wind: S 15-25 mph at the shore and SE 10-20 mph inland) with coastal showers today and inland showers likely (60%), rain likely (60%) tonight and breezy (wind: S 10-20 mph decreasing to S 5-10 mph late inland and at the shore S 15-25 mph decreasing to 10-15 mph late) , cloudy with a good (50%) chance of coastal AM rain with afternoon rain likely (60%) Wednesday and a (40%) chance of rain inland, and a (30%) chance of rain Wednesday night highs 53-48 lows near 40. Mostly cloudy with AM showers and afternoon rain Thursday and windy (wind: S 25-35 mph at the shore and S 15-25 mph inland), rain likely (60%) and windy Thursday night and Friday (Christmas Eve), then rain Friday night and Saturday (Christmas Day) and Saturday night (breezy), and rain likely (60%) Sunday and Sunday night (breezy), then mostly cloudy and windy with showers likely (60%) Monday highs 47-52 lows bouncing back and forth between 44-49. (seasonal averages high 52 lows 39).

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Forecast for the Cascades of Lane County: Partly cloudy with a slight (20%) chance of rain and snow showers today, a good (50%) chance of rain and snow tonight, snow or rain Wednesday (1-4 in. of snow possible), snow likely (60%) Wednesday evening, a (40%) chance of snow at night snow level 3,000 ft. this afternoon through Wednesday afternoon, and 3,000 ft. Wednesday night highs 32-34 lows 23-27. Mostly cloudy with snow and rain likely (60%) Thursday, rain and snow Thursday night and a good (50%) chance of rain and snow Friday (Christmas Eve), rain and snow likely (60%) Friday night and Saturday (Christmas Day), snow and rain likely (60%) Saturday night, snow likely (60%) Sunday and Sunday night, and snow showers likely (60%) Monday  snow level 3,000 ft. Thursday, 4,000 ft. Thursday night, 4,500 ft. Friday, 4,000 ft. Friday night and Saturday, falling to 3,500 ft. Saturday night, 3,000 ft. Sunday, and 2,500 ft. Sunday night and Monday highs bouncing back and forth from 32-37 lows between 27-23.

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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.

________________

Here is this week’s weather quiz question. What is a “Radiosonde” used for in weather forecasting? Extra credit points if you can tell me what new technology is replacing radiosondes. Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

There will be a total lunar eclipse tonight into Tuesday AM, but it will probably be too cloudy for us to see it. I’ll keep you updated. The Winter Solstice takes place at 3:38 PM Pacific Time Tuesday to officially begin Winter. Here are the details on the eclipse. The eclipse begins on Tuesday morning, Dec. 21st, at 1:33 am EST (tonight, Dec. 20th, at 10:33 pm PST). At that time, Earth’s shadow will appear as a dark-red bite at the edge of the lunar disk. It takes about an hour for the “bite” to expand and swallow the entire Moon. Totality commences at 02:41 am EST (11:41 pm PST) and lasts for 72 minutes.

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The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which is pushing lots of moisture and, for the most part, mild air  our way. We are still getting plenty of rain, in the Southern reaches of Western Oregon, from the storm that slid into Northern California. More storms will be coming at us next week including this frontal system that will come in for Christmas Eve. Not much of a chance of a “White Christmas” in the valleys because it will be too warm. Our best chance of valley snows usually comes in January and February.

_______________

Advisories: NONE AT THIS TIME.

________________

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 with a good (50%) chance of showers tonight, partly cloudy Tuesday with a slight (20%) chance of showers, mostly cloudy with a slight (20%) chance of evening rain, then a (30%) chance of rain late Tuesday night, rain likely (60%) Wednesday and Wednesday night,  rain Thursday, and rain likely (60%) Thursday night lows 32-40 highs 44-50. Mostly cloudy with rain likely (60%) Friday (Christmas Eve), Friday night, Saturday (Christmas Day), then rain likely (60%) Saturday night and Sunday, rain Sunday night changing to showers Monday highs 45-50 lows 40-36. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with a good (50%) chance of showers this evening, a (40%) chance of rain and snow showers late tonight (snow level 2,500 ft.),  mostly cloudy with a good (50%) chance of showers Tuesday (snow level 2,500 ft. rising to 3,500 ft. in the afternoon), a (30%) chance of evening rain, rain likely (60%) late Tuesday night (snow level 3,500 ft.), cloudy with a (30%) chance of rain Wednesday (snow level 3,500 ft, falling to 3,000 ft. in the afternoon), a slight (20%) chance of evening rain, then a good (50%) chance of rain and snow late Wednesday night (snow level 3,000 ft. falling to 2,000 ft. late at night) lows near 35 highs 43-48. Cloudy with a  good (50%) chance of rain and snow Thursday AM,  a good (50%) chance of rain and breezy in the afternoon, a good (50%) chance of rain Thursday night and Friday (Christmas Eve), rain likely (60%) Friday night, rain Saturday (Christmas Day), then rain likely (60%) Saturday night through Sunday night, and mostly cloudy with showers likely (60%) Monday highs 44-49 lows 37-42. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a (20%) chance of showers this evening, coastal showers late tonight and inland showers likely (60%) late at night, coastal showers Tuesday and inland showers likely (60%), rain likely (60%) Tuesday night, cloudy with a good (50%) chance of coastal AM rain with afternoon rain likely (60%) Wednesday and a (40%) chance of rain inland, and a (40%) chance of rain Wednesday night lows near 40 highs 53-48. Mostly cloudy with rain likely (60%) Thursday and windy, rain likely (60%) Thursday night and Friday (Christmas Eve), then rain Friday night and Saturday (Christmas Day) and Saturday night, and rain likely (60%) Sunday and Sunday night, then mostly cloudy with showers Monday highs 47-52 lows bouncing back and forth between 44-49. (seasonal averages high 52 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with a good (50%) chance of snow showers tonight,  a mix of clouds and sun with a slight (20%) chance of AM snow showers Tuesday, then a slight (20%) chance of of rain and snow showers in the afternoon, a good (50%) chance of rain and snow Tuesday night, snow or rain likely (60%) Wednesday AM, rain and snow likely (60%) in the afternoon (1-3 in. of snow possible), snow likely (60%) Wednesday night snow level 3,000 ft. rising to 3,500 ft. Tuesday afternoon, and 4,000 ft. Tuesday night, 3,500 ft. falling to 3,000 ft. Wednesday afternoon, and 3,000 ft. Wednesday night lows 20-27 highs 32-34. Mostly cloudy with snow and rain likely (60%) Thursday, rain and snow Thursday night and a good (50%) chance of rain and snow Friday (Christmas Eve), rain and snow likely (60%) Friday night and Saturday (Christmas Day), snow and rain likely (60%) Saturday night, snow likely (60%) Sunday and Sunday night, and snow showers likely (60%) Monday  snow level 3,000 ft. Thursday, 4,000 ft. Thursday night, 4,500 ft. Friday, 4,000 ft. Friday night and Saturday, falling to 3,500 ft. Saturday night, 3,000 ft. Sunday, and 2,500 ft. Sunday night and Monday highs bouncing back and forth from 32-35 lows between 26-22.

_________________

**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.

________________

Here is this week’s weather quiz question. What is a “Radiosonde” used for in weather forecasting? Extra credit points if you can tell me what new technology is replacing radiosondes. Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

________________

There will be a total lunar eclipse tonight into Tuesday AM, but it will probably be too cloudy for us to see it. I’ll keep you updated. The Winter Solstice takes place at 3:38 PM Pacific Time Tuesday to officially begin Winter. Here are the details on the eclipse. The eclipse begins on Tuesday morning, Dec. 21st, at 1:33 am EST (Monday, Dec. 20th, at 10:33 pm PST). At that time, Earth’s shadow will appear as a dark-red bite at the edge of the lunar disk. It takes about an hour for the “bite” to expand and swallow the entire Moon. Totality commences at 02:41 am EST (11:41 pm PST) and lasts for 72 minutes.

________________

The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which is pushing lots of moisture and, for the most part, mild air  our way. We are still getting plenty of rain, in the Southern reaches of Western Oregon, from the storm that slid into Northern California. More storms will be coming at us next week including this frontal system that will come in for Christmas Eve. Not much of a chance of a “White Christmas” in the valleys because it will be too warm. Our best chance of valley snows usually comes in January and February.

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Advisories: A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY   ABOVE 2,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE  COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY ABOVE 4,500 FT. FOR THE SOUTHERN OREGON CASCADES AND THE SISKIYOU MOUNTAINS.

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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 with showers today (0.10 in. of rain possible), a good (50%) chance of showers tonight (0.10 in. of rain possible), a mix of clouds and sun Tuesday and mostly cloudy with a (40%) chance of rain Tuesday night highs 45-47 lows 30-35. Mostly cloudy with rain likely (60%) Wednesday through Thursday night, mostly cloudy with rain likely (60%-70%) chance Friday (Christmas Eve), then rain likely (60%) Friday night through Friday (Christmas Day) and through Sunday highs 45-50 lows 40-37. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with rain and snow showers this afternoon (snow level 1,500 ft. rising to 2,500 ft. in the afternoon, 1 in. of snow possible),  a good (50%) chance of showers tonight (snow level 3,000 ft.),  cloudy with a (40%) chance of showers Tuesday (snow level 3,500 ft.), a (30%) chance of rain Tuesday night, cloudy with a (30%) chance of showers Wednesday (snow level 3,000 ft. in the afternoon), and a (40%) chance of showers Wednesday night highs 45-47 lows 36-40. Mostly cloudy with a  good (50%) chance of rain Thursday, cloudy with a good (50%) chance of rain Thursday night and Friday (Christmas Eve), rain likely (60%) Friday night, rain Saturday (Christmas Day), then rain likely (60%) Saturday night and Sunday highs 45-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with AM showers, coastal rain and isolated thunderstorms this afternoon, afternoon rain inland, coastal rain with a slight (20%) chance of evening thunderstorms, then rain late, evening rain inland, then rain likely (60%) late tonight, breezy (wind: S 15-25 mph), coastal showers with inland showers likely (60%) Tuesday and breezy (wind: S 15-25 mph), and rain likely (60%) Tuesday night highs 47-50 lows 40-43. Cloudy with showers likely (60%) Wednesday through Thursday, rain likely (60%) Thursday night and Friday (Christmas Eve), then rain Friday night and Saturday (Christmas Day) and night, and rain likely (60%) Sunday highs 47-52 lows bouncing back and forth between 40-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers this afternoon (2-5 in. of snow possible), mostly cloudy with a good (50%) chance of snow showers tonight,  mostly cloudy with a (40%) chance of snow showers Tuesday AM, a mix of clouds and sun Tuesday afternoon with a slight (20%) chance of showers, a good (50%) chance of rain and snow Tuesday night snow level 2,000 ft. rising to 2,500 ft. today and tonight, rising to  3,000 ft. rising to 3,500 ft. Tuesday afternoon, and 2,500 ft. Tuesday night highs 30-33 lows 20-25. Mostly cloudy with snow and rain likely (60%) Wednesday(2-4 in. of snow possible) , snow likely (60%) Wednesday night and Thursday, then a (60%) chance of rain and snow Thursday night, a good (50%) chance of rain Friday, rain likely (60%) Friday night (Christmas Eve) and Saturday (Christmas Day) snow level 3,000 ft. Wednesday through Thursday, 5,000 ft. Thursday night, 5,500 ft. Friday, 7,000 ft. Friday night, and 6,000 ft. Saturday, falling to 3,500 ft. Saturday night and 2,500 ft. Sunday highs 32-35 lows between 23-28.

_________________

**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.

________________

There will be a total lunar eclipse Monday night into Tuesday AM, but it will probably be too cloudy for us to see it. I’ll keep you updated. The Winter Solstice takes place at 3:38 PM Pacific Time Tuesday to officially begin Winter.

________________

The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which is pushing lots of moisture and, for the most part, mild air  our way. We are still getting plenty of rain, in the Southern reaches of Western Oregon, from the storm that slid into Northern California. More storms will be coming at us next week including this frontal system that will come in for Christmas Eve. Not much of a chance of a “White Christmas” in the valleys because it will be too warm. Our best chance of valley snows usually comes in January and February.

_______________

Advisories: A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM MONDAY  FOR EASTERN CURRY COUNTY AND JOSEPHINE  COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR THE WESTERN COLUMBIA RIVER GORGE AND THE UPPER HOOD RIVER VALLEY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM  MONDAY FOR THE SOUTH CENTRAL AND SOUTHERN CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY, ABOVE 2,000 FT. FOR CENTRAL DOUGLAS COUNTY, AND ABOVE 4,500 FT. FOR  CENTRAL AND EASTERN LAKE COUNTY.

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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 with rain this evening, showers likely (60%) late tonight (0.10 in. of rain possible), showers likely (60%) Monday (0.10 in. of rain possible), a good (50%) chance of showers Monday night (0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers Tuesday and (40%) Tuesday night lows near 35 highs 45-47. Mostly cloudy with rain rain likely (60%) Wednesday through Thursday night, mostly cloudy with a (60%-70%) chance of rain Friday (Christmas Eve), then rain likely (60%) Friday night through Friday (Christmas Day) and through Sunday highs near 46 lows 35-40. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with rain and snow showers and possible evening thunderstorms, then rain and snow showers likely (60%) late tonight (snow level 1,500 ft., 1 in. of snow possible), rain and snow showers Monday AM, then rain and snow Monday afternoon (snow level 1,500 ft. rising to 2,500 ft. in the afternoon), evening rain likely (60%), a (%) chance of showers late Monday night (snow level 3,000 ft.),  cloudy with a  (40%) chance of showers Tuesday (snow level 3,500 ft.), a (30%) chance of rain Tuesday night, cloudy with showers likely (60%) Wednesday, and rain Wednesday night lows 36-40 highs 45-47. Mostly cloudy with rain likely (60%) Thursday, cloudy with a good (50%) chance of rain Thursday night and Friday (Christmas Eve), rain likely (60%) Friday night,  rain Saturday (Christmas Day), then rain likely (60%) Saturday night and Sunday highs 45-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with showers and isolated thunderstorms and breezy tonight (wind: S 15-25 mph decreasing to S 10-15 mph late at night at the shore and S 10-20 mph decreasing to S 10-15 mph late tonight inland), AM showers, coastal rain and isolated thunderstorms Monday afternoon, afternoon rain inland, coastal rain with a slight (20%) chance of evening thunderstorms, then rain late, evening rain inland, then rain likely (60%) late Monday night, breezy (wind: s 15-25 mph), coastal showers with inland showers likely (60%) Tuesday and breezy (wind: S 15-25 mph), and rain likely (60%) Tuesday night lows 40-43 highs 47-50. Cloudy with AM showers likely (60%) then a good (50%) chance of showers Wednesday afternoon, rain Wednesday night and Thursday, rain likely (60%)  Friday (Christmas Eve), then rain Friday night and Saturday (Christmas Day) and night, and  rain likely (60%) Sunday highs 47-52 lows bouncing back and forth between 40-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with snow this evening, snow showers likely (60%) tonight (2-4 in. of snow possible), AM snow showers, snow showers likely (60%) Monday afternoon (1-3 in. of snow possible), evening snow showers likely (60%) mainly to the North, mostly cloudy with a good (50%) chance of snow showers Monday night,  mostly cloudy with a (40%) chance of snow showers Tuesday AM, a good (50%) chance of rain and snow showers Tuesday afternoon, and  snow showers likely (60%) Tuesday night snow level 2,500 ft. tonight through Monday night, rising to  3,000 ft. Tuesday afternoon and Tuesday night  lows near 25 highs 30-33. Mostly cloudy with snow and rain likely (60%) Wednesday, snow and rain likely (60%) Wednesday night, snow and rain Thursday, then rain and snow likely (60%) Thursday night through Friday night (Christmas Eve), rain and snow Friday (Christmas Day) snow level 2,500 ft. Wednesday,  3,000 ft. Wednesday night, 3,500 ft. Thursday, 4,500 ft. Thursday night, 5,000 ft. Friday and Friday night, and 4,000 ft. Saturday highs 32-35 lows between 23-28.

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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.

________________

There will be a total lunar eclipse on the night Winter begins, but it will probably be too cloudy for us to see it. I’ll keep you updated.

________________

The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which will be pushing lots of moisture our way. A frontal system has moved through the Pacific Northwest (actually a dual system) spreading rain , wind, and higher elevation snow (those snow levels will be dropping). More storms will be coming at us next week and one will push through for Christmas Eve. Still not much of a chance of a “White Christmas” in the valleys. Our best chance of valley snows usually comes in January and February.

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Advisories:  A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM  MONDAY FOR THE SOUTH CENTRAL AND SOUTHERN CASCADES, THE SISKIYOU MOUNTAINS, AND ABOVE 4,000 FT. FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY, AND ABOVE 4,500 FT. FOR  CENTRAL AND EASTERN LAKE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 9 AM TODAY ABOVE 1,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE  COUNTY.

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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 with showers likely (60%) today (0.25 in. of rain possible), rain tonight (0.25 in. of rain possible), showers Monday (0.10 in. of rain possible), and rain likely (60%) Monday night (0.10 in. of rain possible), mostly cloudy with rain likely (60%) Tuesday and Tuesday night highs near 45 lows 37-40. Mostly cloudy with rain Wednesday, rain likely (60%) Wednesday night, rain Thursday, rain likely (60%) Thursday night through Friday night (Christmas Eve), and rain Saturday (Christmas Day) highs near 46 lows 37-40. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with AM rain today with rain and snow showers and possible this afternoon and evening thunderstorms (snow level 2,500 ft. 1-2 in. of snow possible), rain and snow showers late tonight (snow level falling to 1,500 ft.,1-2 in. of snow possible), rain and snow Monday AM, then rain Monday afternoon (snow level 2,000 ft. rising to 2,500 ft.), evening rain and snow showers, rain and snow Monday night,  AM rain and snow Tuesday, rain in the afternoon and evening, then rain and snow likely (60%) Tuesday night highs 46-42 lows 36-40. Mostly cloudy with AM rain and snow Wednesday, then rain Wednesday night through Thursday night, rain likely (60%) Friday and Friday night (Christmas Eve), and rain Friday (Christmas Day) highs 44-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with coastal rain and isolated thunderstorms this AM, AM rain inland, then showers and isolated thunderstorms this afternoon and evening (snow level 2,000 ft.), showers and breezy tonight (wind: S 15-20 mph then S 20-30 mph late evening and night at the shore and S 10-20 mph gusts to 40 mph late evening and early AM inland), AM rain and isolated thunderstorms Monday, afternoon rain and breezy (wind: S 15-25 mph gusts to 40 mph in the afternoon), evening showers then rain late Monday night through Tuesday night highs 46-50 lows 40-42. Mostly cloudy with rain Wednesday through Friday (Christmas Day) highs 47-50 lows bouncing back and forth between 39-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow showers likely (60%) today (1-4 in. of snow possible), snow tonight (4-8 in. of snow possible), AM snow showers, snow and rain Monday (1-3 in. of snow possible), rain and snow showers likely (60%) Monday night (1-2 in. of snow possible), and mostly cloudy with snow and rain likely (60%) Tuesday and Tuesday night snow level 3,000 ft. today, 2,500 ft. tonight and Monday, and 2,500 ft. Monday night, and 3,000 ft. Tuesday and Tuesday night highs 30-32 lows near 25. Mostly cloudy with snow Wednesday, snow and rain likely (60%) Wednesday night, snow and rain Thursday, then rain and snow likely (60%) Thursday night through Friday night (Christmas Eve), rain and snow Friday (Christmas Day) snow level 2,500 ft. Wednesday,  3,000 ft. Wednesday night, 3,500 ft. Thursday, 4,500 ft. Thursday night, 5,000 ft. Friday and Friday night, and 4,000 ft. Saturday highs 32-35 lows between 25-29.

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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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The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which will be pushing lots of moisture our way. A frontal system has moved through the Pacific Northwest (actually a dual system) spreading rain , wind, and higher elevation snow (those snow levels will be dropping). More storms will be coming at us next week and one will push through for Christmas Eve. Still not much of a chance of a “White Christmas” in the valleys. Our best chance of valley snows usually comes in January and February.

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Advisories:  A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM  MONDAY FOR THE SOUTH CENTRAL AND SOUTHERN CASCADES, THE SISKIYOU MOUNTAINS, AND ABOVE 4,000 FT. FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY, AND ABOVE 4,500 FT. FOR  CENTRAL AND EASTERN LAKE COUNTY.

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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 with showers and a slight (20%) chance of thunderstorms this evening (0.25 in. of rain possible), showers likely (60%) Sunday (0.25 in. of rain possible), rain Sunday night (0.25 in. of rain possible), rain Monday (0.10 in. of rain possible), and rain likely (60%) Monday night (0.10 in. of rain possible), mostly cloudy with rain likely (60%) Tuesday and Tuesday night lows 37-40 highs near 45. Mostly cloudy with rain Wednesday, rain likely (60%) Wednesday night, rain Thursday, rain likely (60%) Thursday night through Friday night (Christmas Eve), and rain Saturday (Christmas Day) highs near 46 lows 37-40. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with showers  this evening, rain and snow late tonight (snow level 2,500 ft. falling to 2,000 ft. late at night, no accumulation expected), AM rain Sunday with rain and snow showers and possible afternoon and evening thunderstorms (snow level 3,000 ft. falling to 1,500 ft., 1-2 in. of snow possible), rain and snow showers late Sunday night (1-2 in. of snow possible), rain and snow Monday AM, then rain Monday afternoon (snow level 2,000 ft. rising to 2,500 ft.), evening rain and snow showers, rain and snow Monday night,  AM rain and snow Tuesday, rain in the afternoon and evening, then rain and snow likely (60%) Tuesday night lows 36-40 highs 46-42. Mostly cloudy with AM rain and snow Wednesday, then rain Wednesday night through Thursday night, rain likely (60%) Friday and Friday night (Christmas Eve), and rain Friday (Christmas Day) highs 44-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with evening coastal showers and isolated thunderstorms, rain and isolated thunderstorms late at night, evening showers inland then rain late at night, coastal rain and isolated thunderstorms Sunday AM, AM rain inland, then showers and isolated thunderstorms Sunday afternoon and evening, showers and breezy Sunday night (wind: S 15-20 mph then S 20-30 mph late evening and night at the shore and S 10-20 mph gusts to 40 mph late evening and early AM inland), AM rain and isolated thunderstorms Monday, afternoon rain and breezy (wind: S 15-25 mph gusts to 40 mph in the afternoon), evening showers then rain late Monday night through Tuesday night lows 40-42 highs 46-50. Mostly cloudy with rain Wednesday through Friday (Christmas Day) highs 47-50 lows bouncing back and forth between 39-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with rain and snow showers tonight (1-3 in. of snow possible), rain and snow showers likely (60%) Sunday (1-4 in. of snow possible), snow and rain Sunday night (3-5 in. of snow possible), snow and rain Monday (1-3 in. of snow possible), snow and rain likely (60%) Monday night (1 in. of snow possible), and mostly cloudy with snow and rain likely (60%) Tuesday and Tuesday night snow level 3,000 ft. tonight and Sunday, 2,500 ft. Sunday night and Monday, and 2,500 ft. Monday night, and 3,000 ft. Tuesday and Tuesday night lows near 25 highs 30-32. Mostly cloudy with snow Wednesday, snow and rain likely (60%) Wednesday night, snow and rain Thursday, then rain and snow likely (60%) Thursday night through Friday night (Christmas Eve), rain and snow Friday (Christmas Day) snow level 2,500 ft. Wednesday,  3,000 ft. Wednesday night, 3,500 ft. Thursday, 4,500 ft. Thursday night, 5,000 ft. Friday and Friday night, and 4,000 ft. Saturday highs 32-35 lows between 25-29.

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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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Sorry, no winner in this week’s weather quiz.

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Here for the last time is my weekly weather quiz question. One of the most important discoveries in modern Meteorology occurred during World War II. In 1944 our bombers taking part in the first raid on Japan had many of the planes run out of fuel much sooner than expected and many of them had to ditch in the ocean. What caused them to use up so much more fuel and later became one of the major tools in weather forecasting? The answer is the jet stream. The planes hit very strong headwinds at the altitude of the jet stream and used up much more fuel than expected. The jet stream was discovered in the 1930?s but the word didn’t get out until the 1940?s during the war. I’ll have a new weekly weather quiz question for you starting next Monday. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.

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The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which will be pushing lots of moisture our way. A new frontal system is moving through the Pacific Northwest spreading rain , wind, and higher elevation snow (those snow levels will be dropping). More storm systems will be coming at us next week.

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Advisories:  A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 AM UNTIL 6 PM TODAY FOR THE WESTERN COLUMBIA RIVER GORGE, AND THE UPPER HOOD RIVER VALLEY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM  SUNDAY FOR THE SOUTH CENTRAL AND SOUTHERN CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY. A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY FOR  CENTRAL AND EASTERN LAKE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 12 PM TODAY FOR THE COAST RANGE OF NORTHWEST OREGON. A WIND ADVISORY IS IN EFFECT  UNTIL 3 AM TODAY FOR JACKSON COUNTY.AND UNTIL 10 AM TODAY FOR THE GREATER PORTLAND/VANCOUVER AREA.

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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 with showers (0.25 in. of rain possible) and  isolated afternoon thunderstorms that could produce higher amounts of rain, showers tonight (0.25 in. of rain possible), showers likely (60%) Sunday AM, showers likely (60%) with a slight (20%) chance of thunderstorms Sunday afternoon (0.25 in. of rain possible thunderstorms could produce higher amounts of rain), and rain Sunday night (0.10 in. of rain possible) highs 45-47 lows near 36. Mostly cloudy with showers likely (60%) Monday, then rain likely (60%-70%) Monday night through Friday highs 44-48 lows near 38. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with rain and isolated thunderstorms this AM, showers and isolated afternoon thunderstorms, small hail possible, (snow level 3,500 ft. falling to 3,000 ft.), evening showers, then rain late tonight, (snow level 3,000 ft. falling to 2,500 ft. late at night), AM rain with afternoon showers Sunday, rain and snow (snow level 2,500 ft. rising to  3,000 ft. late) Sunday night, rain and snow likely (60%) Monday AM, then showers Monday afternoon and night highs 44-47 lows 37-40. Mostly cloudy with rain Tuesday and Tuesday night, then rain likely (60%-70%) Wednesday through Friday highs 44-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with AM rain and isolated thunderstorms today, then afternoon showers and thunderstorms and breezy (wind: S 15-25 mph),  evening coastal showers and isolated thunderstorms, rain and isolated thunderstorms late at night, evening showers inland then rain late at night, coastal rain and isolated thunderstorms Sunday AM, AM rain inland, then showers Sunday afternoon, and rain and windy Sunday night (wind: S 20-30 mph gusts to 45 mph late at night), AM rain likely (60%) Monday, afternoon showers and breezy, then showers Monday night highs near 48 lows 40. Mostly cloudy with rain Tuesday  and Tuesday night, then rain likely (60%-70%) Wednesday through Thursday night, and rain Friday highs 43-50 lows bouncing back and forth between 38-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers in the today (3-6 in. of snow possible),  snow showers tonight (1-4 in. of snow possible), snow showers Sunday (2-4 in. of snow possible),   occasional snow Sunday night (2-5 in. of snow possible), rain and snow showers likely (60%) Monday (1-3 in. of snow possible), and snow likely (60%) Monday night snow level 2,500 ft. today and tonight, 3,000 ft. Sunday, 2,500 ft. Sunday night, and 3,000 ft. Monday, and 2,500 ft. Monday night highs 30-32 lows near 25. Mostly cloudy with rain and snow showers likely (60%) Monday, snow and rain likely (60%) Monday night, mostly cloudy with snow likely (60%-70%) Tuesday, then snow and rain likely (60%) Tuesday night through Friday snow level 2,500 ft. Monday through Wednesday,  3,500 ft. Wednesday night, 4,000 ft. Thursday, 5,000 ft. Thursday night, and falling to 4,500 ft. Friday highs 30-34 lows between 23-27.

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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.

________________

Sorry, no winner in this week’s weather quiz.

________________

Here for the last time is my weekly weather quiz question. One of the most important discoveries in modern Meteorology occurred during World War II. In 1944 our bombers taking part in the first raid on Japan had many of the planes run out of fuel much sooner than expected and many of them had to ditch in the ocean. What caused them to use up so much more fuel and later became one of the major tools in weather forecasting? The answer is the jet stream. The planes hit very strong headwinds at the altitude of the jet stream and used up much more fuel than expected. The jet stream was discovered in the 1930’s but the word didn’t get out until the 1940’s during the war. I’ll have a new weekly weather quiz question for you starting next Monday. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs.

________________

The upper air flow (yellow jet stream and dark colors for winds) shows a  trough of low pressure swinging down from the Gulf of Alaska (“U” shape offshore) which will be pushing lots of moisture our way to set us up for some more wet weather. A new frontal system, still offshore looks like it is weakening and another storm is moving Southward into California. More storm systems will be coming at us next week.

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Advisories:  A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM SATURDAY FOR THE SOUTH CENTRAL AND SOUTHERN CASCADES, THE SISKIYOU MOUNTAINS, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY. A WIND ADVISORY IS IN EFFECT  UNTIL 3 AM SATURDAY FOR JACKSON COUNTY.

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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 with a (40%) chance of rain this evening, rain late tonight (0.25 in. of rain possible), rain Saturday AM,  showers (0.25 in. of rain possible) likely (60%) with isolated afternoon thunderstorms that could produce higher amounts of rain, showers Saturday night (0.25 in. of rain possible), showers Sunday (0.25 in. of rain possible), and showers likely (60%) Sunday night (0.10 in. of rain possible) lows near 36 highs 45-47. Mostly cloudy with showers likely (60%) Monday, then rain likely (60%-70%) Monday night through Friday highs 44-48 lows near 38. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with rain tonight, rain and isolated thunderstorms Saturday AM, showers and isolated afternoon thunderstorms, (snow level 3,500 ft. falling to 3,000 ft.), evening showers, then rain late Saturday night, (snow level 3,000 ft. falling to 2,500 ft. late at night), AM rain with afternoon showers Sunday, rain and snow (snow level 2,500 ft. falling to 2,000 ft. late) Sunday night, rain and snow likely Monday AM, then showers Monday afternoon and night lows 37-40 highs 44-47. Mostly cloudy with rain Tuesday and Tuesday night, then rain likely (60%-70%) Wednesday through Friday highs 44-49 lows 37-40. (seasonal averages high 48 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy tonight with rain and windy (wind: SE 5-10 mph shifting S 20-30 mph), AM rain and isolated thunderstorms Saturday, then afternoon showers and thunderstorms and windy (wind: SW 20-30 mph shifting S 15-20 mph late morning and afternoon),  evening coastal showers and isolated thunderstorms, rain and isolated thunderstorms late at night, evening showers inland then rain late at night, coastal rain and isolated thunderstorms Sunday AM, AM rain inland, then showers Sunday afternoon, and rain and windy Sunday night (wind: S 20-30 mph gusts to 45 mph late at night), AM rain likely (60%) Monday, afternoon showers and breezy, then showers Monday night lows 40 highs near 48. Mostly cloudy with rain Tuesday  and Tuesday night, then rain likely (60%-70%) Wednesday through Thursday night, and rain Friday highs 43-50 lows bouncing back and forth between 38-45. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly cloudy with a (40%) chance of snow this evening, snow and rain late tonight (1-4 in. of snow possible) and breezy (wind: SE 15-25 mph), AM snow Saturday, snow showers in the afternoon (3-6 in. of snow possible),  snow showers Saturday night (1-4 in. of snow possible), snow showers Sunday (1-4 in. of snow possible),  snow showers likely (60%) Sunday night (1-3 in. of snow possible), rain and snow showers likely (60%) Monday, and snow and rain likely (60%) Monday night snow level 3,500 ft. tonight, 3,500 ft. falling to 3,000 ft. Saturday, 2,500 ft. Saturday night, 3,000 ft. Sunday, 2,500 ft. Sunday night, and 3,000 ft. Monday and Monday night lows near 25 highs 30-32. Mostly cloudy with rain and snow showers likely (60%) Monday, snow and rain likely (60%) Monday night, mostly cloudy with snow likely (60%-70%) Tuesday, then snow and rain likely (60%) Tuesday night through Friday snow level 3,000 ft. Monday night, 2,500 ft. Tuesday through Wednesday,  4,000 ft. Wednesday night, 5,000 ft. Thursday and Thursday night, and falling to 3,500 ft. Friday highs 30-34 lows between 23-27.

_________________

**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.

________________

Here again is my new weekly weather quiz question. One of the most important discoveries in modern Meteorology occurred during World War II. In 1944 our bombers taking part in the first raid on Japan had many of the planes run out of fuel much sooner than expected and many of them had to ditch in the ocean. What caused them to use up so much more fuel and later became one of the major tools in weather forecasting? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

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The upper air flow (yellow jet stream and dark colors for winds) shows a small high pressure ridge (“arch” shape in the yellow line) will give us a short period of drier weather through most of today. A trough of low pressure (“U” shape offshore) will quickly move behind the ridge pushing lots of moisture our way to set us up for some more wet weather. A new frontal system, still offshore will bring the rain back. A strong surface low pressure area will help spin more Pacific moisture our way.

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Advisories: A DENSE FOG ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE CENTRAL AND SOUTHERN WILLAMETTE VALLEY. A WIND ADVISORY IS IN EFFECT FROM 7 PM TONIGHT UNTIL 3 AM SATURDAY FOR JACKSON COUNTY

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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: Areas of patchy dense fog with scattered areas of freezing fog and frost this AM, then a mix of clouds and sun this afternoon, increasing clouds with a slight (20%) chance of rain this evening, rain late at night (0.25 in. of rain possible), rain at times Saturday (0.25 in. of rain possible),  isolated afternoon thunderstorms could produce higher amounts of rain, showers Saturday night (0.25 in. of rain possible), showers Sunday (0.25 in. of rain possible), and rain likely (60%) Sunday night highs 45-50 lows 34-39. Mostly cloudy with rain likely (60%) Monday through Thursday highs 44-48 lows near 38. (seasonal averages highs 45 low 33)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with areas of fog and freezing fog this AM, partly cloudy with a slight (20%) chance of rain this afternoon, cloudy with a (40%) chance of evening rain, rain and snow late tonight (snow level 3,000 ft. falling to 1,500 ft late), rain Saturday (snow level 3,500 ft. falling to 3,000 ft. in the afternoon), showers Saturday night (snow level 3,000 ft.), AM showers Sunday, then rain in the afternoon and Sunday evening, rain and snow late Sunday night highs 44-47 lows 37-40. Mostly cloudy with rain and snow likely (60%) Monday, rain Monday night through Tuesday night, then rain likely (60%-70%) Wednesday through Thursday highs 44-49 lows 37-43. (seasonal averages high 49 low 35)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Patchy early AM fog, mostly cloudy today with a (30%) chance of coastal rain and a slight (20%) chance of afternoon rain  inland, cloudy tonight, evening coastal rain likely (60%) and a good (50%) chance of evening rain inland, then rain both areas late tonight and breezy (wind: SE 10-15 mph shifting S 15-25 mph late at the shore),  rain and breezy (wind: S 15-25 mph at the shore and S 10-20 mph inland, AM wind gusts to 40 mph) Saturday, evening coastal showers and isolated thunderstorms with showers inland, mostly cloudy with AM coastal showers and thunderstorms, AM showers inland, then rain Sunday afternoon, and rain and breezy Sunday night highs 49-44 lows 43-40. Mostly cloudy with rain likely (60%) Monday, rain Monday night through Tuesday night, then rain likely (60%) Wednesday through Thursday highs bouncing back and forth between 43-50 lows 39-46. (seasonal averages high 53 lows 39).

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Forecast for the Cascades of Lane County: Mostly sunny today, becoming mostly cloudy with snow likely (60%) this evening, snow and rain and breezy (wind: SE 15-25 mph) late at night (1-4 in. of snow possible), snow and breezy (wind: SE 10-15 mph shifting S 15-25 mph in the afternoon) Saturday (3-6 in. of snow possible), snow showers Saturday night (1-3 in. of snow possible),  snow showers Sunday, and snow likely (60%) Sunday night snow level 3,500 ft. rising to 4,000 ft. this afternoon, 3,500 ft. tonight, 2,500 ft. rising to 3,000 ft. Saturday, 2,500 ft. Saturday evening through Sunday night highs holding near 33 lows 25-22. Mostly cloudy with snow likely (60%-70%) Monday through Wednesday, then snow and rain likely (60%) Wednesday night and Thursday snow level 3,000 ft. Monday night, 2,500 ft. Tuesday through Wednesday,  4,000 ft. Wednesday night, and 5,000 ft. Thursday highs 30-34 lows between 23-27.

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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.