Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
581 FLUS43 KFSD 132120 HWOFSD Hazardous Weather Outlook National Weather Service Sioux Falls SD 420 PM CDT Wed Aug 13 2025 SDZ038>040-050-052>070-142130- Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-Moody- Brule-Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas- Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Clay- 420 PM CDT Wed Aug 13 2025 This Hazardous Weather Outlook is for central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Tonight. Scattered thunderstorms spread east into south central South Dakota later this evening. Isolated strong to severe thunderstorms are possible with the greatest threat between 10 PM and 2 AM. The strongest storms may produce hail up to half dollar size, wind gusts up to 70 mph, locally heavy rainfall, and perhaps a tornado or two. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Hot, humid weather may push afternoon heat index readings to around 100 degrees Friday and Saturday, especially south of the Interstate 90 corridor. Periodic chances for thunderstorms return Friday night through the weekend, but there is low confidence in details such timing and severe weather threat at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. $$ IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ071-142130- Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson- Pipestone-Rock-Dixon-Dakota-Union- 420 PM CDT Wed Aug 13 2025 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska and southeast South Dakota. .DAY ONE...Tonight. Scattered showers and thunderstorms may spread east overnight into early Thursday morning, but severe weather is unlikely. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Hot, humid weather may push afternoon heat index readings to around 100 degrees Friday and Saturday, especially south of the Interstate 90 corridor. Periodic chances for thunderstorms return Thursday night through the weekend, but there is low confidence in details such timing and severe weather threat at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. $$