Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
638 FLUS43 KFSD 212227 HWOFSD Hazardous Weather Outlook National Weather Service Sioux Falls SD 527 PM CDT Thu Aug 21 2025 MNZ071-072-080-081-097-SDZ038>040-050-052>065-068-222230- Lincoln-Lyon-Murray-Cottonwood-Pipestone-Beadle-Kingsbury-Brookings- Gregory-Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson- McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Bon Homme- 527 PM CDT Thu Aug 21 2025 This Hazardous Weather Outlook is for southwest Minnesota, central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Tonight. Another round of isolated to scattered strong to severe thunderstorms is possible overnight. The strongest storms look to remain north of Highway 14, however, a few strong to severe thunderstorms may drift as far south as I-90. Threats include hail to the size of a quarter, 65 mph wind gusts, and heavy downpours with the strongest storms. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Isolated strong to severe storms will also be possible Friday afternoon. Some uncertainty remains in overall severe potential, so keep up to date with the latest forecast. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$ IAZ001>003-012>014-020>022-031-032-MNZ089-090-098-NEZ013-014-SDZ066- 067-069>071-222230- Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Nobles-Jackson-Rock-Dixon-Dakota-Turner- Lincoln-Yankton-Union- 527 PM CDT Thu Aug 21 2025 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska and southeast South Dakota. .DAY ONE...Tonight. Isolated strong to severe storms are possible this evening along and north of Interstate 90 overnight into early Friday morning. A few storms may drift a bit farther south than I-90. If they do, the greatest threats will most likely be quarter sized hail, 60 mph wind gusts, and potentially heavy rainfall. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Isolated strong to severe storms remain main possible Friday afternoon. Some uncertainty remains in overall severe potential, so keep up to date with the latest forecast. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$