Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 113 AM EDT Sat Jun 01 2024 Valid 12Z Sat Jun 01 2024 - 12Z Mon Jun 03 2024 ...Excessive Rainfall threatens parts of the Central/Southern Plains, Southeast and Mississippi/Ohio Valleys today... ...Severe Weather refocuses over the Great Plains this weekend... ...Southern Texas remains warmer than average through early next week... A sequence of shortwave energies will support impactful weather across the Central U.S. this weekend. Showers and thunderstorms will organize ahead of a low pressure system over the Middle/Lower Mississippi Valley and spread into the Southeast this morning and afternoon. Some storms may be strong enough to produce heavy rainfall. A Slight Risk (at least 15%) of Excessive Rainfall leading to Flash Flooding is in effect for portions of Tennessee, Mississippi and Alabama today. Meanwhile, some dry-line storms could turn severe over parts of the Central/Southern High Plains this afternoon. The Storm Prediction Center issued a Slight Risk (level 2/5) of Severe Thunderstorms for the aforementioned areas with supercells possibly organizing into clusters and spreading into the Plains tonight. Severe wind, hail and brief tornadoes are possible. Another low pressure system emerging from the Rockies will bring a renewed threat of severe weather to the Northern/Central Plains and Upper Midwest on Sunday. A Slight Risk (level 2/5) of Severe Thunderstorms is in effect from southeastern North Dakota to western Minnesota and down into central Nebraska, where a line of severe storms may produce damaging wind gusts and hail could be the main severe threats. There's also a Slight Risk (at least 15%) of Excessive Rainfall leading to Flash Flooding over parts of southern Minnesota, southeastern South Dakota, eastern Nebraska and Iowa on Sunday. Deep upper-level troughing will bring rain and cooler temperatures to the Pacific Northwest on Sunday. Temperatures will remain above average across southern Texas, while warmer conditions expand across the Great Plains through early next week. Approaching shortwave energy and an upper low locked in just off the Northeast Coast will support warmer than average temperatures over the Northeast for the next several days. Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php