Advisory Covers Southern Twin Falls County and Western Magic Valley
The National Weather Service in Boise issued a Heat Advisory for southern Twin Falls County and western Magic Valley beginning Friday, July 11, at 4:17 a.m. MDT and lasting through Sunday, July 13, at 9:00 p.m. MDT.
Temperatures are expected to reach the upper 90s to 103 degrees during the advisory period, creating conditions that pose health risks to vulnerable populations and anyone spending extended time outdoors.
Health Risks and At-Risk Groups
Young children, elderly residents, and pets face heightened risk during extreme heat events. The National Weather Service warns that prolonged exposure can lead to heat exhaustion and heat stroke—serious medical emergencies that require immediate attention.
“Heat stroke is an emergency! Call 9 1 1,” the National Weather Service stated in its advisory notice.
Health officials emphasize that heat stroke requires emergency medical intervention and should never be delayed.
Protective Measures and Work Guidelines
Residents are advised to take several precautions during the advisory period: drink plenty of fluids, stay in air-conditioned spaces when possible, avoid direct sunlight, and limit strenuous outdoor activity to early morning and evening hours when temperatures are cooler. Wearing lightweight and loose-fitting clothing helps the body regulate temperature more effectively.
The Occupational Safety and Health Administration recommends that workers engaged in outdoor labor take frequent rest breaks in shaded or air-conditioned environments. Employers should adjust work schedules or provide cooling stations to protect worker safety during peak heat hours.
Pet owners should ensure animals have access to shade and fresh water throughout the day and should avoid leaving pets in vehicles or unattended in direct sunlight.
Residents planning outdoor activities—such as attending community events this weekend—should apply sunscreen, carry water, and take breaks in air-conditioned spaces.
What Comes Next
The Heat Advisory remains in effect through Sunday evening. Residents should monitor National Weather Service updates for any extensions or changes to the advisory. After July 13 at 9:00 p.m., temperatures are expected to moderate, though outdoor work and recreation should still be approached cautiously.
Those planning to participate in Twin Falls community events this weekend or the Kimberly Festival should take heat precautions seriously and ensure they remain hydrated throughout the day.