Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
869 FXUS01 KWBC 051834 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 133 PM EST Fri Dec 05 2025 Valid 00Z Sat Dec 06 2025 - 00Z Mon Dec 08 2025 ...Active winter weather pattern continues with snow expected across the northern tier this weekend... ...Moderate to heavy rainfall for the Gulf Coast likely... ...Well below average temperatures continue for many areas from the Northern Plains to the East Coast... Winter weather will continue to make headlines across multiple regions of the country going into the upcoming weekend. A Pacific low that moves inland across the Northwest U.S., and interacts with an arctic frontal boundary that will be situated across the Northern Rockies through Saturday will produce heavy rain and snow. One to two feet of accumulation likely for the higher terrain of northern Idaho to western Montana, and then extending to the Wasatch Range and western Wyoming, and the Colorado Rockies. There should be some abatement in the snowfall by Saturday night as the lift and moisture exit the region. Snowfall becomes more likely from the Dakotas to Iowa and southern Minnesota by Saturday afternoon into early Sunday as the low pressure system reaches the Midwest states. Snow showers spread across the Midwest, from Iowa to the Northeast on Sunday. Elsewhere across the Continental U.S., dry conditions are expected to continue from California to the Southern Plains, and extending eastward to the Mid-South and Tennessee Valley. There`s potential for high winds across central Washington tonight behind a decaying cold front. Periods of moderate to locally heavy rainfall are likely for the lower elevations of western Oregon and Washington through early Saturday as the Pacific storm system advects a plume of moisture inland. Across the Gulf Coast region, a lingering frontal boundary off the coast will keep rainfall chances elevated through early Sunday from southeast Louisiana to the Florida Peninsula to southern South Carolina, with some 1 inch totals possible in some areas. In terms of temperatures, it will be quite cold from the Northern Plains to the Northeast with a big dip in the jet stream and multiple cold frontal passages heralding the arrival of a polar airmass. Some subzero overnight lows are likely across portions of the Dakotas and into Minnesota, especially by Sunday morning in the wake of the next arctic front. Kebede/Hamrick Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$