Yet more rain is expected to hit California in March. But warmer storms could melt snow

LOS ANGELES — Soggy, snow-capped California faces the likelihood of yet another month of wet weather, but what remains uncertain is whether this late winter precipitation will augment weeks of record-setting snowpack, or cause it to vanish should warmer rains arrive.

Last week, a frigid storm transformed portions of the state into a white landscape while toppling trees, prompting power outages, spurring water rescues and leaving some residents trapped by heavy snow.

Now, with forecasts calling for more rain and snow in March — including the potential for at least one more atmospheric river system — California is girding