In the aftermath of torrential rains and severe flash flooding, California continues to grapple with the effects of a powerful atmospheric river that has swept through the state and is now moving eastward. The deluge of rain, with some areas receiving as much as 10 inches or more, has led to widespread devastation, including over 300 landslides in the greater Los Angeles area alone.

As of Tuesday morning, more than 150,000 customers in California are without power, highlighting the extent of the storm's impact. Tragically, at least three people have lost their lives as a result of the severe weather conditions, which have extended beyond the areas of concentrated rainfall.

While flood watches have been lifted in Northern and Central California, Southern California continues to face significant rain, locally damaging winds, and heavy snowfall in the mountains. Despite the storm having already affected most of the state, areas from Burbank to San Diego still experience heavy rain, with the possibility of another inch or two. Flash flood warnings are in effect for regions like Anaheim and southeastern Los Angeles County, and a similar warning extends from Irvine to Oceanside until 1 p.m. Additionally, there is a slight chance of thunderstorms that may produce small hail or isolated tornadoes.

In the higher elevations of Southern California, snowfall persists. The San Bernardino and Riverside County mountains could see an additional 4 to 8 inches of snow above 6,000 feet, with over 2 feet expected above 8,000 feet elevation. Snowfall also continues in the Sierra Nevada, expanding into Nevada's Great Basin and the Four Corners region. Winter storm warnings have been issued for the Southwest.

Thankfully, the destructive winds that reached speeds of up to 100 mph have finally subsided, reducing concerns over further damage. However, Monday night into Tuesday morning, the storm underwent some restructuring. The main low-pressure center that brought the atmospheric river to Southern California has dissipated, leading to a decrease in rainfall in Northern California. Simultaneously, a new low-pressure system is forming over Southern California, causing an expansion of rainfall in that region. However, the system will eventually shift northeast into Nevada, directing the atmospheric river out of California by Tuesday evening.

The eastward movement of the atmospheric river will bring heavy rains to Arizona, where Phoenix is under a flood watch with the possibility of receiving an inch of rain. The heaviest rainfall is expected from Tuesday afternoon to Wednesday morning. In the higher elevations, snowfall is anticipated across the Four Corners region, with winter storm warnings covering much of Arizona, Nevada, Colorado, and Utah.

Rainfall totals in California have been staggering, with areas from north of the San Francisco Bay Area to near San Diego receiving 2 to 6 inches at sea level. Coastal mountain ranges have experienced readings of 6 to 10 inches, with some areas in the Los Angeles metropolitan region reporting up to 7.03 inches in just two days. Dozens of landslides and numerous flood reports have been documented by the Weather Service.

Some of the most significant rainfall totals have been recorded in the Santa Monica Mountains, with two nearby stations reporting 15.24 and 16.16 inches during the storm. Additional zones of extreme precipitation occurred in the mountains north of San Francisco and across parts of the Sierra Nevada.

Strong and damaging winds have affected most of California, leading to over a million power outages. The Sierra Nevada received heavy, wet snow, which is crucial as the state's snowpack was only at half its typical level prior to the storm. Snow accumulations of 2 to 5 feet were observed in Central and Northern California, while the mountain peaks of Southern California saw 1 to 2 feet. Snowfall is expected to continue through Tuesday.

As of Monday, California's snow water content reached 72 percent of the normal level for this time of year, and this number is expected to increase further on Tuesday. The state's mountains could receive an additional foot or two of snow through Thursday, particularly in the southern Sierra and the mountains to the north and east.