A dangerous heatwave fueled by a heat dome is currently gripping Northern California, New Mexico, and parts of Arizona, with temperatures exceeding 37°C (100°F) in some areas.

Record-breaking highs are expected across southwestern desert areas and California's Central Valley, with Southern California bracing for temperatures up to 38°C, 15 degrees above normal.

Las Vegas is expected to hit 44°C, and northerly winds and high temperatures in Northern California increase wildfire risk, with an excessive heat warning in place for the Sacramento Valley and foothills.

Emergency personnel are on high alert after the Corral Fire near Tracy burned over 14,000 acres, and residents are urged to exercise fire safety measures.

The National Weather Service has issued excessive heat warnings for Wednesday to Friday in the region, including Las Vegas and Phoenix.

Experts warn that the heatwave is a clear indicator of global warming, with heatwaves becoming more frequent, longer, and more intense.

The situation is dire in Mexico, where 48 deaths have been reported due to extreme heat, and globally, extreme heat events cause over 150,000 deaths annually.

Tragically, the hot weather has led to four heat-related deaths among migrants attempting to cross the border.

Fire crews are on high alert in Arizona, with restrictions in place to prevent wildfires and prescribed fires planned to mitigate vegetation threats once conditions improve.

Cooling stations are being funded to provide relief for those most at risk, and precautions are being taken to ensure the safety of individuals outdoors.

The Arizona Department of Forestry and Fire Management has warned of an increased wildfire threat, advising increased hydration and breaks for those working outside.

This heatwave is part of a concerning global trend, with each month since June 2023 setting new temperature records, highlighting the urgent need for action on climate change.