An upper level High Pressure ridge is still keeping our weather dry but that is going to change. If you look at the little arrows you will see the airflow has been moving in from the East and Northeast. The first frontal system will spread the rain from the South to the North as it moves in from the South. That will change and onshore flow will start bringing more moisture our way and that will mean a series of storms will march into the Pacific Northwest keeping us wet.

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Advisories: A FREEZING RAIN ADVISORY IS IN EFFECT FOR THE NORTHERN COAST RANGE UNTIL NOON TODAY. A FREEZING RAIN ADVISORY IS IN EFFECT FOR THE CENTRAL AND SOUTHERN WILLAMETTE VALLEY AND THE FOOTHILLS OF THE CASCADES IN LANE COUNTY UNTIL  NOON TODAY. A HIGH SURF ADVISORY IS IN EFFECT FOR THE SOUTH OREGON COAST UNTIL 10 PM TODAY. AN AIR STAGNATION ADVISORY IS IN EFFECT FOR THE CENTRAL AND SOUTHERN WILLAMETTE VALLEY UNTIL 10 AM TODAY. A WINTER WEATHER ADVISORY IS IN EFFECT FOR EASTERN CURRY COUNTY AND FOR JACKSON COUNTY UNTIL 4 AM TODAY ABOVE 1,500′.

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For the Central & Southern Willamette Valley: (Watch out for possible icy spots on the roadways). For this morning a chance of rain possibly mixed with some freezing rain then rain will become (60% ) likely in the afternoon high 43-46.. Mostly cloudy tonight with a slight (20%) chance of evening rain low near 32. Mostly cloudy Monday and Monday night high 43 low near 30. Mostly cloudy with a good (50%) chance of rain Tuesday and Tuesday night high 44 low 34. Mostly cloudy Wednesday and Wednesday night with a (40%-50%) chance of showers high 44 low 34. Mostly cloudy Thursday through Saturday with a good (50%) chance of rain highs low 40s Thursday, near 50 Friday, and mid 40s Saturday lows in the mid 30s.

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For the Umpqua Basin including Roseburg: Mostly cloudy today with showers likely (60%) ( AM snow level 3,500?) high 46. Tonight there will be a slight (20%) chance of showers low near 34. Monday and Monday night will be mostly cloudy high in the low 40s low 33-35. Mostly cloudy Tuesday and Tuesday night with rain likely (60%) high 46 low 34. Mostly cloudy Wednesday with a (40%) chance of showers then evening showers followed by rain and snow showers likely (60%) late Wednesday night high 46 low 35. Thursday (50%) chance of AM rain and snow then afternoon rain high 46. A good (50%) chance of rain Thursday night low 39. Rain will be likely (60%) New Year’s Day and night high near 50 low near 40. Mostly cloudy with a (40%) chance of rain Saturday high near 50.

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Forecast for the South Coast:  Showers likely (60%) today and a (30%) chance of showers tonight high in the low 50s low near 37.  Mostly cloudy with a slight (20%) chance of showers Monday and Monday evening then a slight (20%) chance of rain at night high in the low 50s low near 40. A (70%) chance of rain Tuesday and rain likely (60%) Tuesday night  high 50 low 40. There will be a (40%) chance of showers Wednesday and Wednesday night high near 50 low near 40. A chance (50%) of rain Thursday and Thursday night high 53 low 44. Rain likely (60%) New Year’s Day and night  high 55 low 45. Saturday a good (50%) chance of rain high 54.

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For the Cascades of Lane County: Mostly cloudy today with rain and snow, snow level 4,000′. Tonight a chance of rain and snow in the evening and a slight chance of rain and snow overnight, snow level 4,000′. Monday a slight (20%) chance of rain and snow showers with a snow level of 4,000′. A (40%) chance of snow and a slight (20%) chance of rain Monday night snow level 3,500′. A (40%) chance of rain and snow Tuesday snow level 3,500′. Snow likely (60%) Tuesday night and a (40%) chance of rain ,snow level 3,000′. Mostly cloudy (40%) chance of rain and snow showers Wednesday and Wednesday night snow level holding at 3,500′.  A good (50%) chance of snow Thursday snow level 3,000′. Mostly cloudy chance of rain Thursday night snow level rising to 5,000′. Rain likely (60%) New Year’s Day snow level 5,500′. Rain and snow likely (60%) at night  snow level 5,000′. Rain likely (60%) Saturday snow level 6,000′.