[00:00] Thatcher Collins: This is Neural Newscast for March 19th, 2026. [00:05] Thatcher Collins: We're following breaking news of a historic and dangerous heat event [00:09] Thatcher Collins: developing across the American Southwest. [00:12] Thatcher Collins: I'm Thatcher Collins. [00:14] Announcer: And I'm Thomas Keene. [00:16] Announcer: The National Weather Service has issued extreme heat warnings [00:19] Announcer: for millions of residents across California, Arizona, and Nevada. [00:24] Announcer: We are seeing temperatures that would be considered extreme for the peak of July [00:29] Announcer: to see them occurring in mid-March is unprecedented for the region. [00:33] Thatcher Collins: The data provided by meteorologists is startling. [00:37] Thatcher Collins: Forecasters expect temperatures to reach 112 degrees Fahrenheit [00:42] Thatcher Collins: in the most severely affected areas. [00:44] Thatcher Collins: All-time March records are already falling. [00:48] Thatcher Collins: Palm Springs has hit 104 degrees and Las Vegas reached 99. [00:53] Thatcher Collins: These figures are nearly 30 degrees above the seasonal average for this time of year. [00:58] Announcer: From an infrastructure perspective, this event creates immediate and serious concerns. [01:04] Announcer: High heat can lead to rail expansion and pavement buckling, which threatens transportation safety. [01:11] Announcer: It also places an intense and unseasonable load on the regional electrical grid as air conditioning demand spikes months ahead of schedule. [01:20] Announcer: the National Weather Service is being direct in its guidance, [01:24] Announcer: advising everyone in the Coachella Valley and Phoenix metro areas [01:28] Announcer: to remain indoors during the peak afternoon hours. [01:31] Thatcher Collins: Public health risks are the primary focus of the current warnings. [01:35] Thatcher Collins: The agency is specifically highlighting the danger to the very young, [01:39] Thatcher Collins: the elderly, and those without access to reliable air conditioning. [01:44] Thatcher Collins: In northern Arizona, the heat is also significantly impacting tourism, [01:49] Thatcher Collins: Hikers in the Grand Canyon are being told to stay out of the lower canyon areas between 10 a.m. and 4 p.m. [01:56] Thatcher Collins: Temperatures at Phantom Ranch are expected to cross the 100-degree mark today. [02:01] Announcer: This is not expected to be a brief spike. [02:06] Announcer: Current forecasts suggest this heat will persist through the upcoming weekend. [02:11] Announcer: Residents are urged to monitor themselves and others for signs of heat exhaustion [02:17] Announcer: and to check on vulnerable neighbors. [02:19] Announcer: Significant relief is not expected to reach the region until Sunday night.