Tornadoes appeared in Queens and on Long Island as flooding disrupted traffic on some major highways. A tornado was also confirmed in Delaware.
Wednesday will bring some of the hottest temperatures of the year, and fire experts are warning of combustible conditions throughout the state.
The U.S. Geological Survey estimated that it could be far deadlier than a 7.7-magnitude earthquake that struck the country in 1900.
San Francisco received nearly as much rain one morning as it would typically see for the month, and a slope in the Sierra Nevada remained open for skiing.
Last month was one of the wettest Marches on record for the state, leading to widespread flooding and evacuations. More rain is hitting this week.
A storm system lashing Hawaii since Tuesday has caused flooding and power outages. The wettest spot in Maui had gotten nearly two feet of rain in the past 24 hours.
When making forecasts, our reporters aim to visualize severe weather possibilities rather than focus on the most dire predictions. A possible blizzard this weekend is the latest test.