Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 352 AM EDT Fri Jun 07 2024 Valid 12Z Fri Jun 07 2024 - 12Z Sun Jun 09 2024 ...There is a Slight Risk of severe thunderstorms over parts of the Central Plains on Friday... ...There is a Slight Risk of excessive rainfall over parts of the Central Plains and Middle Mississippi Valley on Friday and the Central/Southern Plains and Middle/Lower Mississippi Valley on Saturday... ...There are Excessive Heat Warnings and Heat Advisories over parts of Central/Southern California, Southwest, and the Great Basin... Upper-level energy, a weak front, and a surge of moisture moving northward over the Southern Plains into the Central Plains will trigger showers and severe thunderstorms over parts of the Central Plains. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Central Plains through Saturday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. In addition, there is an added threat of hail, two inches or greater, over central Nebraska and north-central Kansas. Furthermore, the showers and thunderstorms will create heavy rain over parts of southeastern Nebraska, northeastern Kansas, southwestern Iowa, and northwestern Missouri. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Central Plains/Middle Mississippi Valley. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas the most vulnerable. On Saturday, as the front progresses eastward across the Plains into the Mississippi Valley, showers and strong to severe thunderstorms will develop over parts of the Central/Southern Plains and the Middle/Lower Mississippi Valley. Therefore, the SPC has issued a Marginal Risk (level 1/5) of severe thunderstorms over parts of the Central/Southern Plains and the Middle/Lower Mississippi Valley from Saturday through Sunday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. The showers and thunderstorms will also develop heavy rain over parts of the Central/ Southern Plains and Middle/Lower Mississippi Valley. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Central/Southern Plains and Middle/Lower Mississippi Valley from Saturday through Sunday morning. The associated heavy rain will create mainly localized areas of flash flooding, with urban areas, roads, small streams, and low-lying areas the most vulnerable. Furthermore, an upper-level low over the Great Lakes/Northeast will help produce rain over parts of the Great Lakes and the Northeast through Sunday. Another area of upper-level energy will help create showers and thunderstorms over parts of the Southeast through Sunday. Furthermore, upper-level ridging over California and the Southwest helps spawn Excessive Heat Warnings and Advisories over parts of Central/Southern California, the Southwest, and the Great Basin. Visit www.weather.gov/safety/heat and check local media and government websites for information on cooling centers. Limit outdoor activity and stay hydrated. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php