


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
473 FXUS01 KWBC 291942 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 341 PM EDT Sun Jun 29 2025 Valid 00Z Mon Jun 30 2025 - 00Z Wed Jul 02 2025 ...There is a Slight Risk of excessive rainfall over parts of the Central Plains/Middle Mississippi Valley on Sunday... ...There is a Slight Risk of severe thunderstorms over parts of the Upper Great Lakes and Upper/Middle Mississippi Valley and Central Plains/Central High Plains on Sunday... Showers and thunderstorms are expected along and ahead of a cold front tracking eastward through the Central Plains to the Upper Mississippi Valley/Great Lakes region. Embedded areas of heavy rainfall will have the potential for localized flash flooding; WPC has a broad Marginal Risk in effect in for this system through Wednesday morning, however there is a Slight Risk in place through Monday morning for eastern Nebraska/Kansas, southwest Iowa and much of Missouri. SPC has issued a Slight Risk (level 2/5) of severe over parts of the Upper Great Lakes and Upper/Middle Mississippi Valley and Central Plains/Central High Plains through Monday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a minimal threat of tornadoes. Meanwhile, a quasi-stationary front over the Mid-Atlantic will aid in producing showers and strong to severe thunderstorms today. South of the front, upper-level impulses, daytime heating, and moisture will create showers and thunderstorms on Sunday over the Ohio/Tennessee Valleys, Southern Plains, Lower Mississippi Valley, and the Southeast. Similarly, upper-level impulses, daytime heating, and moisture will create showers and thunderstorms over parts of the Southern High Plains. Also, on Sunday, scattered rain showers will develop over parts of Northern New England as low pressure moves eastward into Southeastern Canada. Elsewhere, upper-level impulses, daytime heating, and moisture will produce showers and thunderstorms over parts of the southern Mid-Atlantic/Southeast, the Gulf Coast States into the Middle/Lower Mississippi Valley and the Central/Southern Plains. Parts of the West will be heating up over the next few days as upper-level ridging builds over the region. Heat advisories are in effect for eastern Washington, northern Oregon, and portions of Idaho and northern Nevada from Monday morning into Tuesday. Campbell Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$