Boston — It may officially be spring, but wintry weather blanketed the U.S. on Saturday with New England and California seeing a mix of rain, heavy snow and gusty winds.

In the West, a winter storm warning was in effect through Sunday morning for parts of the Sierra Nevada, and a 91-mph wind gust was recorded at Mammoth Mountain near the California-Nevada line. About a foot of snow had fallen by Saturday morning north of Lake Tahoe.

A winter weather advisory was issued through Sunday night for parts of northern Arizona, the Grand Canyon and Flagstaff to the New Mexico border with up to a half foot of snow possible at upper elevations and winds gusting to 40 mph.

In Maine, the National Weather Service warned of a treacherous travel day with an increase in ice forming inland from the coast, on top of snow or sleet that had already fallen.

Farther inland forecasters called for anywhere from 1 to 2 feet (30 to 61 centimeters) of snow across the mountains in western Maine and areas north and in New Hampshire’s White Mountains, according to Maura Casey, a lead forecaster for the weather service, based out of Gray, Maine.

In the lakes region of New Hampshire up to Maine, totals were expected to be somewhat lower at 6 inches to a foot with sleet and freezing rain mixing in.

Across Connecticut, New York City, Rhode Island and Massachusetts, the storm was expected to remain largely a rain event.

“Overnight dry weather will give way to sunshine,” said Frank Nocera, lead forecaster for the National Weather Service in Norton, Massachusetts. Despite the sun, Sunday was expected to be blustery with temperatures chillier than average for late March, he said.

In New York City, a flood watch and wind advisory were in place until 2 a.m. Sunday.

Flooding impacted subway service, shutting down a section of the Staten Island Railway in both directions. Flooding also closed part of the Cross Island Parkway in Queens, and police warned motorists about standing water on roadways throughout the city.

The storm was blamed for hundreds of delayed and canceled flights at New York-area airports, and it also postponed the opening of Coney Island’s Luna Park, home to the famous Cyclone and Thunderbolt roller coasters.

Fans of skiing welcomed the snowfall.

At Loon Mountain in New Hampshire’s White Mountains, skiers were looking forward to the 12 to 20 inches of new snow the storm was expected to drop on top of a foot earlier this week.

“The storm is great. It’s brought a lot of skiers out to the mountain today,” said Kevin Bell, vice president of marketing for the resort. “This could be the biggest snow we’ll see all year. It sets us up for a really good spring. The more snow New England gets, the better for us.”

The Mount Washington Avalanche Center issued an avalanche warning along the White Mountain’s Presidential Range until 7 a.m. Sunday.

“Very dangerous avalanche conditions exist. Natural and human-triggered avalanches large enough to bury people are very likely,” the center said. “Some avalanches will be large enough to snap trees or destroy a house and may run far into areas previously considered safe.”

The storm should be completely out of the New England region by Sunday morning. It comes at the end of a winter season in some areas of the Northeast, including Boston, that saw little snow and warmer temperatures.

In South Florida, severe thunderstorms Friday night delayed departures at the Miami International Airport during the busy spring break season, suspended a popular electronic music festival and disrupted matches at a high-profile tennis tournament.

And in Virginia’s Shenandoah Valley, crews battling wildfires this week got an assist from some wet weather.

“Without a doubt the rain is helping,” said Cory Swift, a spokesperson for the Virginia Department of Forestry.

Associated Press writers Susan Haigh in Norwich, and Scott Sonner in Reno, Nev., contributed to this report.