The Southwest United States and Nebraska are experiencing an intense heat wave, shattering previous temperature records and sparking worries about public safety. Areas such as California and Arizona are seeing temperatures climb above 100°F (37.7°C). This unusual heat has spread as far north as Nebraska, a significant departure from typical March weather. The National Weather Service has issued heat advisories for these regions, forecasting Tucson, Arizona, to reach 100°F (37.7°C) and the Yuma Desert to hit 105°F (40.5°C). Yuma recently broke a record with a high of 112°F (43.3°C), the highest March temperature ever recorded in the U.S.