Unprecedented March Heat Wave Strikes U.S. West

San Francisco residents revealed more skin than usual for this time of year as a rare winter heat wave struck the U.S. West. The city, known for its chilly summers, experienced nearly 90-degree temperatures in March for the first time in two decades.

In Phoenix, temperatures are expected to exceed 100 degrees this week, marking the earliest time they've reached such heights, while Las Vegas might set new March temperature records. Meanwhile, severe snowstorms led to travel disruptions in the Midwest and eastern U.S.

Meteorologists urge visitors to Southwest cities and national parks to prepare for extreme conditions, while water providers in Colorado are advocating for conservation amid unusually warm winter weather affecting snowfall and water supplies.