Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 1207 AM EDT Sun Nov 05 2023 Valid 12Z Sun Nov 05 2023 - 12Z Tue Nov 07 2023 ...Modest atmospheric river activity to bring multiple rounds of beneficial precipitation across the Pacific Northwest and the Northern Rockies over the next couple of days... ...Mixed light rain and snow may brush the northern borders of the Northern Plains to the interior Northeast through Monday... ...Fair and mild weather expected to continue from the southwestern U.S. to much of the eastern U.S; cool Pacific air arrives over the West this week.... Persistent troughing will continue to generate unsettled weather over parts of the Pacific Northwest and Northern Rockies through Monday. The current flux of moisture centered over Northern California will relent this morning and refocus over the same area late tonight. A Marginal Risk of Flash Flooding is in effect for this area due, in part, to the ongoing and recent rain. All the while, the associated moisture is expected to spread into the Northern Rockies and produce light to moderate rain showers at low elevations and snow over elevated terrain. Another round of light rain/snow will arrive over the Pac NW and Northern Rockies Monday night into Tuesday. This will renew flash flooding concerns across the immediate Pac NW coast. Shortwave energy will amplify as it moves out of the Northern Rockies and into the Northern Plains early this week. The associated surface low pressure system will produce some light to moderate snow and rain showers from the Northern Plains to the interior Northeast over the next couple of days. Some windy conditions are possible over parts of the Upper Great Lakes/Midwest on Monday as well. Relatively zonal flow across the rest of the CONUS will support above average temperatures over the next few days. Anomalous troughing will move into the West this week and usher in a cooler Pacific airmass into the region. Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php