Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
610 FXUS01 KWBC 092002 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 302 PM EST Sat Nov 09 2024 Valid 00Z Sun Nov 10 2024 - 00Z Tue Nov 12 2024 ...Widespread, potentially significant flash flooding possible in central and southwestern Louisiana tonight... ...Showers and thunderstorms spread across the Tennessee/Ohio Valleys through Sunday... ...An atmospheric river will bring heavy coastal rain and high elevation snowfall to portions of the Pacific Northwest beginning Sunday night... ...Above average temperatures continue for much of the country through early next week... A slow moving cold front will continue to focus substantial moisture over portions of the Lower Mississippi Valley tonight. There`s a High Risk of Excessive Rainfall leading to Flash Flooding across much of central and southwestern Louisiana this evening. Remember to avoid driving through flooded roadways. Anomalous moisture will work its way up into the Tennessee/Ohio Valleys this evening and produce some additional showers and thunderstorms through Sunday evening. Rain showers move into the Northeast/Mid-Atlantic on Sunday as the aforementioned cold front moves through the region. A deep area of low pressure will bring coastal heavy rain and high elevation snow across the Pacific Northwest beginning Sunday night. Rain and snow will likely spread farther inland over parts of northern California and the Northern Rockies on Monday. Rainfall isn`t likely to cause any flash flooding concerns and snowfall probably won`t cause notable impacts since it`ll remain confined to the highest peaks of the Northwest mountains. Temperatures across the country should remain mild beneath a predominantly ridge-y pattern. Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$