Skip Navigation Links 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center



Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/

Satellite and Radar Imagery
   Satellite Images
   National Radar
Product Archive
WPC Verification
   Medium Range
   Model Diagnostics
   Event Reviews
   Winter Weather
International Desks
Development and Training
WPC Overview
   About the WPC
   WPC History
   Other Sites
Meteorological Calculators
Contact Us
   About Our Site is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
Short Range Public Discussion
(Latest Discussion - Issued 1920Z Dec 05, 2016)
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
Abbreviations and acronyms used in this product
Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White

Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 219 PM EST Mon Dec 05 2016 Valid 00Z Tue Dec 06 2016 - 00Z Thu Dec 08 2016 ...Severe thunderstorms and heavy rain possible for portions of the Southeast and lower Mississippi valley... ...Heavy snow possible for portions of the northern plains and Upper Midwest, as well as the Pacific Northwest... ...Cold air expected to spread across much of the Rockies and the Great Plains... A strengthening low pressure system in the northern Gulf of Mexico will continue to spread rain and thunderstorms across much of the Southeast and lower Mississippi valley through tonight. Some areas from the lower Mississippi valley to the Southeast could see a threat of severe thunderstorms as well as heavy rain/flash flooding. As the surface low moves northeastward to the Tennessee valley on Tuesday, precipitation will spread farther north into the Ohio valley, Mid-Atlantic, and the Northeast. Cold air in place on the northern periphery of the system will allow some precipitation to fall as a mix of rain, sleet, and snow from the northern Mid-Atlantic region into the Northeast. Rain will begin to come to an end across the Southeast by Tuesday afternoon, but areas of rain and snow will persist across the Northeast into Wednesday morning as the low pressure system moves out into the open Atlantic Ocean. An area of low pressure is forecast to continue deepening across the Upper Midwest this evening. The system will bring snow to areas from the northern plains into the Upper Midwest through tonight and into Tuesday. Heavy snow snow along with gusty winds are possible for some areas, resulting in the potential for some blowing and drifting snow. Snow will begin to taper off by Tuesday afternoon as the low pressure system moves northeast into Ontario, however scattered snow showers will persist into Wednesday. Onshore flow will continue to spread moisture and precipitation into the Pacific Northwest through tonight. Cold air in place across the region will allow precipitation to fall as snow even in valleys, with some accumulations possible. Across the higher terrain of southeastern Oregon, including the southern Cascades and Coastal Range, heavy snow is possible. An Arctic cold front will spread a frigid air mass southward into the Rockies and much of the plains through midweek. Afternoon highs on Tuesday are forecast to be 20 to 30 degrees below average from the northern Rockies into the northern High Plains. On Wednesday these cold temperatures will spread south into the central Rockies and the central plains. Ryan Graphics available at