287
WWUS73 KFSD 210049
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
749 PM CDT Mon Jul 20 2026

IAZ020>022-031-032-NEZ013-014-SDZ070-071-210200-
/O.EXP.KFSD.XH.W.0002.000000T0000Z-260721T0100Z/
Plymouth-Cherokee-Buena Vista-Woodbury-Ida-Dixon-Dakota-Clay-
Union-
Including the cities of Ponca, Battle Creek, Beresford, Wakefield,
Jefferson, Sioux City, South Sioux City, Storm Lake, Ida Grove, North
Sioux City, Le Mars, Alcester, Holstein, Elk Point, Vermillion,
Cherokee, and Allen
749 PM CDT Mon Jul 20 2026

...EXTREME HEAT WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING...

Slowly falling temperatures and humidity levels have allowed heat
indices to drop below 100 degrees. Therefore, the Extreme Heat
Warning will be allowed to expire.

$$

IAZ001>003-012>014-SDZ050-063>069-210200-
/O.EXP.KFSD.HT.Y.0005.000000T0000Z-260721T0100Z/
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Gregory-Charles Mix-
Douglas-Hutchinson-Turner-Lincoln-Bon Homme-Yankton-
Including the cities of Irene, Hull, Menno, Corsica, Lennox, Rock
Valley, Lake Andes, Spirit Lake, Tripp, Gregory, George, Hawarden,
Delmont, Inwood, Burke, Wagner, Freeman, Marty, Viborg, Marion,
Yankton, Rock Rapids, Hurley, Chancellor, Orange City, Parkston,
Sioux Center, Centerville, Hartley, Clayton, Avon, Sibley,
Harrisburg, Tyndall, Platte, Milford, Sheldon, Canton, Sanborn,
Arnolds Park, Armour, Parker, Springfield, Spencer, Larchwood, Tabor,
Tea, and Scotland
749 PM CDT Mon Jul 20 2026

...HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING...

Decreasing humidity has allowed heat indices to drop below 100
degrees. Therefore, the Heat Advisory will be allowed to expire.

$$

JH