Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 413 PM EDT Fri Sep 28 2018 Valid 00Z Sat Sep 29 2018 - 00Z Mon Oct 01 2018 ...Heavy rain possible over parts of the Western Gulf Coast... ...Temperatures will be 10 to 15 degrees below average over the Northern Rockies into the Upper Midwest... ...Snow possible over the highest elevations of the Northern Rockies... A quasi-stationary front extending from parts of the Southern Mid-Atlantic roughly southwestward to the Western Gulf Coast will begin to dissipate by Sunday. Showers and thunderstorms will develop along and near the boundary from the Southern Mid-Atlantic/Southeast to the Central/Western Gulf Coast through Sunday. The showers and thunderstorms will have the greatest areal coverage during the afternoon into the late evening. Meanwhile, a second front extending from the Lower Great Lakes/Ohio Valley southwestward to the Southern High Plains will move eastward off the Northeast Coast by Saturday evening, while the front dissipates over the Southern Ohio/Tennessee Valleys Saturday afternoon into evening. Rain will develop over parts of the Great Lakes into parts of the Middle Mississippi Valley that will lift northeastward into Canada by Saturday evening. A second area of rain will develop over parts of the Northern Plains by Saturday morning that will move eastward to the Great Lakes by Sunday morning. A wave of low pressure over the Texas panhandle, on Saturday morning, will lift northward into the Central High Plains on Saturday evening into Sunday. An associated warm front will also lift northward from the Lower Mississippi Valley/Southern Plains into the Central Plains to the Western Ohio Valley by Sunday. Showers and thunderstorms will develop along the warm front over parts of the Central/Southern Plains overnight Friday that will move northward into the Central Plains/Middle Mississippi Valley by Sunday. Additionally, the western end of the front will be banked along the Rockies through Sunday. Rain and highest elevation snow will develop over parts of the Northern Rockies/Northern High Plains by Saturday afternoon. The rain and highest elevation snow will continue over the Northern Rockies through Sunday. The rain will move into parts of the Northern Plains by Sunday. Furthermore, upper-level energy off the Central California Coast will slowly move inland over the Pacific Northwest by Sunday. Rain will develop over parts of Northern California/Pacific Northwest by Saturday evening continuing into Sunday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php