Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 336 PM EDT Sat Apr 08 2023 Valid 00Z Sun Apr 09 2023 - 00Z Tue Apr 11 2023 ...A front and low pressure to produce rain over the Southeastern corner of the country... ...Upper-level energy to produce showers and thunderstorms over parts of the Middle Mississippi Valley/Southern Plains... ...Weak onshore flow followed by a front will produce rain over parts of the Pacific Northwest... A front offshore of the Southeast Coast snakes across northern Florida and along the Central Gulf Coast and will slowly move south and eastward to the southern tip of Florida by Monday evening. Low pressure along the Central Gulf Coast will move eastward along the boundary by Sunday morning. The system will produce mainly rain over the northern half of the Southeast and showers and thunderstorms over Florida. The rain will end roughly by late Sunday morning or early afternoon. As the front slowly moves southward over Florida, the showers and thunderstorms will move southward over the peninsula through Sunday evening. Overnight Sunday, upper-level energy will move out of the Southern High Plains to the Central Gulf Coast by Monday evening, creating showers and thunderstorms over the Southern Plains/Western Gulf Coast on Monday. Meanwhile, the aforementioned upper-level energy will be over the Rockies on Sunday, moving eastward to the Western Gulf Coast by Monday morning, as additional upper-level energy moves eastward from the Pacific Northwest to the Middle Mississippi Valley/Southern Plains by Monday evening. By Sunday morning, the energy will produce showers and thunderstorms over parts of the Central Plains into the Southern High Plains. The Showers and thunderstorms will expand northward over the Central Plains into the Middle Mississippi Valley by Monday morning. The showers and thunderstorms will continue over parts of the region through Monday evening. In addition, weak onshore flow off the Pacific will create rain over parts of the Pacific Northwest and snow over the higher elevations of the far northern Cascades through Sunday afternoon. On Sunday afternoon, a front will move onshore over the Pacific Northwest and inland to the Northern Intermountain Region by Monday afternoon. The boundary will continue to produce rain over parts of the Northwest through Monday. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php