Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
300 FLUS43 KFSD 161146 HWOFSD Hazardous Weather Outlook National Weather Service Sioux Falls SD 646 AM CDT Sat Aug 16 2025 IAZ001>003-012>014-020>022-031-032-MNZ089-090-098-NEZ013-014-SDZ050- 057>071-171200- Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Nobles-Jackson-Rock-Dixon-Dakota-Gregory- Brule-Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas- Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Union- 646 AM CDT Sat Aug 16 2025 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska, south central South Dakota and southeast South Dakota. .DAY ONE...Today and tonight. Heat index values between 95 and 105 degrees are expected this afternoon. Thunderstorms may develop again tonight, mainly from the Interstate 90 corridor and northward. A few of these storms could be severe with hail to the size of quarters and wind gusts to 60 mph. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Thunderstorm risks will remain Sunday, focused mostly in the evening and overnight hours. A few storms may be capable of large hail and damaging winds. Continue to monitor for forecast and thunderstorm risk changes. .SPOTTER INFORMATION STATEMENT... Spotter activation may be possible tonight. $$ MNZ071-072-080-081-097-SDZ038>040-052>056-171200- Lincoln-Lyon-Murray-Cottonwood-Pipestone-Beadle-Kingsbury-Brookings- Jerauld-Sanborn-Miner-Lake-Moody- 646 AM CDT Sat Aug 16 2025 This Hazardous Weather Outlook is for southwest Minnesota, central South Dakota and east central South Dakota. .DAY ONE...Today and tonight. Heat index values between 90 and 100 degrees are expected this afternoon. Thunderstorms may develop again tonight. A few of these storms could be severe with hail to the size of quarters and wind gusts to 60 mph. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Thunderstorm risks will remain Sunday, focused mostly in the evening and overnight hours. A few storms may be capable of large hail and damaging winds. Continue to monitor for forecast and thunderstorm risk changes. .SPOTTER INFORMATION STATEMENT... Spotter activation may be possible tonight. $$