National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Dec 9, 2025 at 1:20:21 am EST

 

Behind this departing system, clearing conditions return with cold air sticking around this week. No major impacts for our area, but there will be a chance of rain on Wednesday night with a quick moving cold front.
Dry weather with warmer temperatures are expected today and Wednesday, before another cold front moves around mid-week.
Dry weather with warmer temperatures are expected today and Wednesday, before another cold front moves around mid-week.
Dry weather with warmer temperatures are expected today and Wednesday, before another cold front moves around mid-week.

 Current Weather Observations...
Location Time
(EST)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA00:55Overcast10262492NW 2-30.14
Andrews-Murphy NC00:37Partly Cloudy7282486CALM-30.18
Chattanooga TN00:53Overcast10362872NNW 531 [WC]30.24
Crossville TN00:53Overcast10302684WSW 3-30.18
Dalton GA00:55Overcast9373383NW 533 [WC]30.23
Knoxville TN (McGhee-Tyson)00:53Overcast10342672NW 3-30.20
Middlesboro KY00:55Overcast10322780CALM-30.21
Monroe Cnty TN00:55Overcast10333293NNW 528 [WC]30.21
Morristown TN00:55Overcast103333100CALM-30.17
Oak Ridge TN00:53Overcast10352771CALM-30.22
Tazewell Cnty VA00:55Mist2 1/2242397CALM-30.11
Tri-Cities TN00:53Overcast10302684NNW 3-30.17
Wise VA00:55Overcast102424100CALM-30.11
Greeneville, TN00:55Overcast10323092CALM-30.16


Local Weather History For December 9th...
In 2009, high winds hit mountains. Gusts up to 100 mph produced over $1 million damage.

 

 

Briefing Hydrology Past Weather Events Graphical Hazardous Weather Outlook for East Tennessee East Tennessee Observations
Decision Support Hydrology Past Weather Events GHWO Observations Gridded Forecast
Daily Climate for Middle Tennessee Local East Tennessee Climate Tornado Database Tropical Weather Information NOAA Weather Radio
IDSS Point Forecasts Daily Climate Local Climate Tornado Database Tropical Weather Radio
Daily Climate for Middle Tennessee Probabilistic Data for East Tennessee Virtual Tour of the NWS Morristown Office Skywarn Spotter Training for East Tennessee  
Being Prepared Estar Perparado Probabilistic Virtual Tour Spotter Training