Sioux Falls, S.D. – South Dakota is bracing for dangerously high temperatures and severe thunderstorms Tuesday, with hazardous conditions expected to last through the evening. The National Weather Service in Sioux Falls has issued multiple warnings for extreme heat and severe storms that could affect Sioux Falls and surrounding areas.
Details of the Heat and Storm Threat
Heat index values in southeastern South Dakota are expected to range from 100°F to 107°F, with Extreme Heat Warnings in effect for Sioux Falls, Mitchell, and Yankton. These dangerously high temperatures could lead to heat-related illnesses, especially for those outdoors without access to air conditioning or proper cooling.
Additionally, a Slight Risk (Level 2 of 5) has been issued for severe thunderstorms, with the threat of large hail, damaging winds, and the potential for a low but not zero tornado threat. Storms are expected to develop between 4 p.m. and 6 p.m. Tuesday, with the strongest activity moving east-northeast into Minnesota and Iowa overnight. Large hail up to the size of golf balls and wind gusts over 70 mph are possible.
Health Risks and Safety Measures
The combination of extreme heat and severe weather conditions could place additional stress on utilities and pose a risk to vulnerable populations. It’s essential for residents to limit outdoor activities, stay hydrated, wear light-colored clothing, and seek shelter in air-conditioned spaces when possible.
Staying hydrated and checking on elderly neighbors and pets are essential precautions. If you don’t have air conditioning, it’s recommended to visit air-conditioned spaces such as public libraries or shopping malls.
What to Expect Beyond Tuesday
The extreme heat and severe storm risks will continue through early Wednesday. Conditions will be closely monitored, and updates will be provided as storms evolve. The combination of heat and severe weather could strain power grids and cause additional disruptions.
South Dakota faces dangerous heat and severe storms Tuesday, with high heat indices reaching 107°F in areas like Sioux Falls and Mitchell, and the risk of severe thunderstorms developing later in the day. Residents should take precautions to stay safe by staying hydrated, avoiding outdoor exertion, and checking on vulnerable neighbors.
