Extreme Weather Events Across the U.S.

The United States is currently experiencing a period of highly variable and extreme weather conditions, ranging from heavy rainfall in Hawaii to record-breaking heat in the Southwest and a cold snap in the East. These dramatic shifts are impacting communities nationwide, and experts anticipate continued volatility in the coming days.

Hawaii Faces Flooding Risk

The island of Oahu in Hawaii is under a flash flood warning due to persistent heavy rainfall. The National Weather Service has cautioned residents about the potential for dangerous flooding conditions.

Southwest Braces for Record Heat

The southwestern United States is preparing for a heat wave early next week. Phoenix, Arizona, is forecast to reach nearly 37 degrees Celsius (98.6 degrees Fahrenheit) on Tuesday, with temperatures potentially rising to almost 42 degrees Celsius (107.6 degrees Fahrenheit) afterward. Los Angeles is already experiencing unusually warm temperatures for March, with residents opting for lighter clothing and seeking shade.

Midwest and East Coast Experience Cold Snap

In contrast to the Southwest, the Midwest and eastern United States are bracing for a significant cold snap. Minneapolis, Minnesota, is expected to see temperatures around minus 18 degrees Celsius (0 degrees Fahrenheit). The rapid temperature changes were highlighted in Washington D.C., which experienced 30 degrees Celsius (86 degrees Fahrenheit) on Wednesday followed by snowfall on Thursday.

Jet Stream as a Contributing Factor

Meteorologists attribute these extreme weather changes to the behavior of the jet stream, an air current that is causing more significant weather fluctuations than usual across the country. Numerous studies have linked unusual jet stream activity to the decline of Arctic sea ice and human-caused climate change.

National Weather Service Perspective

National Weather Service meteorologist Marc Chenard noted that the entire country is experiencing a shift between cold and warm temperatures, or from warm to cold and back again. Ryan Maue, a former NOAA chief scientist, expects extreme weather to occur in all 50 states.

As of March 12, 2026, residents across the U.S. Are advised to stay informed about local weather forecasts and heed any warnings issued by authorities.