790 FXUS01 KWBC 281902 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 301 PM EDT Thu May 28 2026 Valid 00Z Fri May 29 2026 - 00Z Sun May 31 2026 ...Widespread showers and thunderstorms to persist across the Southern U.S. through the end of the week... ...An Pacific low maintains unsettled conditions and isolated severe weather across the Northwest... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Central Plains, the Middle/Lower Mississippi Valley, and the Central Gulf Coast on Thursday... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Southeast on Friday... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Pacific Northwest on Thursday... A quasi-stationary front extending from the southern Mid-Atlantic to roughly the Central Plains will help trigger showers and thunderstorms over the region, producing heavy rain. Therefore, on Thursday, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Central Plains, the Middle/Lower Mississippi Valley, and the Central Gulf Coast through Friday morning. The associated heavy rain will cause mainly localized flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. Similarly, showers and thunderstorms with heavy rain will continue over parts of the area on Friday. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Southeast from Friday into Saturday morning. The associated heavy rain will cause mainly localized flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. Meanwhile, an upper-level low over the West Coast will aid in developing showers and severe thunderstorms over parts of the Northwest. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Northwest through Friday morning. The hazards associated with these thunderstorms include frequent lightning, severe wind gusts, hail, and the threat of tornadoes. On Friday, the associated front will move eastward across the Northern Intermountain Region into the Northern High Plains by Saturday. Showers and thunderstorms will develop over parts of the Northern Intermountain Region and the Great Basin and then move into the Northern High Plains by Saturday. The front will advance into the Northern/Central Plains by Saturday. Showers and thunderstorms will develop over parts of the Northern/Central High Plains,, and some storms will become severe. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Northern/Central High Plains on Saturday. The hazards associated with these thunderstorms include frequent lightning, severe wind gusts, hail, and the threat of tornadoes. Along the eastern end of the front, heavy rain will develop over parts of the Southeast. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Southeast on Saturday. The associated heavy rain will cause mainly localized flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$