195 FXUS01 KWBC 180659 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 242 AM EDT Sun Oct 18 2026 Valid 12Z Sun Oct 18 2026 - 12Z Tue Oct 20 2026 ...Nor'easter develops along the Carolina coast this weekend, bringing potential coastal flooding and beach erosion along portions of the Mid-Atlantic coast into early next week... ...Flash flooding risk for portions of South Florida for Sunday... A non-tropical coastal low (Nor'easter) off the North Carolina coast is expected to track further offshore, limiting inland showers. However, persistent onshore flow will continue to bring coastal impacts along portions of the Mid-Atlantic coast. Persistent and strong onshore winds can result in coastal flooding and beach erosion into Tuesday. Across southern Florida, a lingering frontal boundary will renew showers and thunderstorms through Monday. Slow-moving storms may produce heavy downpours, leading to localized flash flooding across portions of South Florida on Sunday. Across the Southwest, moisture will continue to stream northward from northwestern Mexico and will support scattered showers and thunderstorms across portions of the Southwest through Monday. Rainfall coverage and amounts will depend on the northward extent of the moisture plume and the persistence of convective development. Further north, a approaching low pressure system over the eastern Pacific will bring increasing precipitation chances along the coast. Otherwise, daytime highs begin to moderate to seasonal temperatures through Monday. Oudit Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$