Weather Alerts For Sanborn, IA

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING # DETAILS -------------------- WHAT Dangerously hot conditions with heat index values up to 107. WHERE Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN Until 9 PM CDT this evening. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ISSUED AT Monday, June 29, 2026 at 7:38 AM CDT ISSUED BY National Weather Service Sioux Falls SD HEADER URGENT - WEATHER MESSAGE # 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. 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. # AREAS AFFECTED -------------------- Dakota, Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth, Sioux, Union, Woodbury Including the cities of Sioux City, Jefferson, Orange City, Hull, Sanborn, Storm Lake, Beresford, Holstein, Alcester, Elk Point, Ida Grove, South Sioux City, Cherokee, Sioux Center, Sheldon, Spencer, Le Mars, Hartley, North Sioux City, Hawarden, Battle Creek, and Rock Valley

There is a Slight Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS PARTS OF EASTERN NORTH DAKOTA AND NORTHWESTERN MINNESOTA SUMMARY Severe thunderstorms are expected today across the Dakotas, Upper Midwest and Middle Missouri Valley, including damaging winds, large hail and a few tornadoes this afternoon through tonight. 20Z Update The most noteworthy change with this update was the addition of 10-percent tornado probabilities (with CIG1) over parts of eastern ND into northwestern MN. Here, the latest surface observations and visible satellite imagery indicate a warm front moving slowly northward. In the wake of an earlier MCS, diurnal heating of a moist air mass (lower 70s dewpoints) and steep midlevel lapse rates should yield sufficient boundary-layer recovery for the development of surface-based storms ahead of a surface low tracking northward across the Dakotas this afternoon and evening. Related strong buoyancy (3000-4000 J/kg MLCAPE) and increasingly large clockwise-curved hodographs (200-300 m2/s2 effective SRH) near the boundary will support a locally favorable corridor for a few supercell tornadoes (some of which could be strong).