Disruptions to the daily flow of life in the Southwest are top of mind recently, as intense heat and humidity have kept visitors off hiking trails and bumped passengers off flights.

Southwest residents are no strangers to triple-digit heat, especially since it's usually a dry heat. But humidity levels have been higher than usual for this time of year, driving up the heat index and making it feel much hotter. Phoenix-area hiking trails are closed during the hottest times of day.

The heat has had the TemperatureRadar turn hues of bright red to hot pink across the Southwest. In Las Vegas, for those flying out of Harry Reid International Airport, safety concerns in the heat forced airlines to activate weight restrictions, bumping passengers off of their scheduled flights over the weekend.

It's hard for a plane to take off in such intense heat. With these triple-digit temperatures, the more weight, the less thrust from the engines, causing safety concerns. Hundreds of flights were delayed.

Temperatures are expected to increase gradually throughout this week, so more disruptions are possible.