⚠️ Heat Advisory – Murray; Cottonwood; Nobles; Jackson; Rock; McCook; Minnehaha – Monday, July 20, 2026

Heat Advisory issued July 20 at 8:00AM CDT until July 20 at 4:00PM CDT by NWS Sioux Falls SD

Details

* WHAT…Heat index values up to 103 expected.

* WHERE…Portions of southwest Minnesota and southeast South Dakota.

* WHEN…From 11 AM this morning to 4 PM CDT this afternoon.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.

Instructions

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.