259 FXUS01 KWBC 020713 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 312 AM EDT Sun Aug 02 2026 Valid 12Z Sun Aug 02 2026 - 12Z Tue Aug 04 2026 ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Lower Great Lakes/Ohio Valley/Central Appalachians, Gulf Coast of Florida, and the North Carolina Coast on Sunday... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Northern Mid-Atlantic/New England, Carolina Coast and the Eastern Gulf Coast of Florida on Monday... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Upper Midwest on Monday... A front extending from the Lower Great Lakes/Ohio Valley to the Southern Appalachians and then across the Central Gulf Coast into Texas will move eastward off the Northeast across the Southern Mid-Atlantic into the Southeast and westward to Eastern Texas by Tuesday. Showers and thunderstorms will develop from the Great Lakes/Ohio Valley, Mid-Atlantic, Southeast, and along the Gulf Coast. There will be three areas of a Slight Risk (level 2/4) of excessive rainfall over the eastern part of the country. One area over the Lower Great Lakes/Central Appalachians, the second over the North Carolina Coast, and a third over the Gulf Coast of Florida. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. On Monday, there will be three areas of a Slight Risk (level 2/4) of excessive rainfall over the eastern part of the country: one over parts of the Northern Mid-Atlantic/New England, the second along the North and Southern Carolina Coast, and the third over the Gulf Coast of Florida. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. Moreover, monsoonal moisture will produce showers and thunderstorms with moderate to heavy rain over parts of the Southwest, Southern Rockies, and Western Texas through Tuesday morning. Therefore, the WPC has issued a Marginal Risk (level 1/4) of excessive rainfall over parts of the area through Tuesday morning. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas being the most vulnerable. A second front over the Northern High Plains into the Great Basin will move eastward to the Upper Midwest, the Central Plains, and then into the Southern Rockies by Tuesday morning. The boundary will trigger showers and severe thunderstorms over parts of the Northern Plains and Upper Mississippi Valley on Monday. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over the region from Monday into Tuesday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. Additionally, showers and thunderstorms will extend from the Central High Plains into the Southern Plains and the Southwest on Monday afternoon into Tuesday. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$