Heat Advisory

Locations Affected

Sioux Falls, SD ∙ Sioux City, IA ∙ Canistota, SD ∙ Renner Corner, SD ∙ Martinsburg, NE ∙ Rock Rapids, IA ∙ Archer, IA ∙ Lake Park, IA ∙ Albert City, IA ∙ Wakonda, SD

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 1157 AM CDT Fri Aug 8 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values up to 105 expected. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

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