A winter weather advisory for southern Suffolk County has ended following a snowstorm that began on the first full day of spring and dropped as much as 7 inches on some parts of Long Island.

"It's largely over for much of the Island," David Stark, meteorologist with the National Weather Service's Upton bureau, said at about 11 a.m. Areas on the East End that continued to see some snow should see it taper off soon, Stark said.

The initial winter weather advisory for all of Long Island was set to expire at 2 a.m., but was pushed to 4 a.m. and then to 9 a.m. because of falling temperatures. The last advisory was due to the "potential for light icing and light snow," Stark said. Northern Suffolk's advisory has ended, he said.

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The region continued to deal with below-freezing temperatures Saturday morning, and could be facing more of the same late Saturday and into early Sunday, Stark said

Temperatures were expected to rise after the storm, hitting the low 40s throughout the day, Stark said. Clouds may break and make way for sunshine later Saturday.

"That should help with some melting and improving the conditions out there overall," Stark said of the roadways. "It's not going to be the warmest day, but we'll get above freezing and with a break in the clouds, it will help."

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Stark also warned of black ice forming Saturday evening if standing water on roads does not dry.

Several car accidents were reported in Suffolk County, including one crash that killed two males in Holbrook, Suffolk police said. The vehicle crashed into a utility pole on Union and Maple avenues at about 3:45 a.m., officials said.

It was unclear whether the crash was due to icy conditions, a police spokeswoman said. No further information was available, the spokeswoman said, citing the ongoing investigation by Sixth Squad detectives.

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Nassau County did not see a significant increase in accidents, police said.

Snowfall totals across Long Island from Friday's storm ranged from about 3.5 inches to as much as 7 inches, Stark said.

Rocky Point, on the North Shore in Brookhaven Town, likely recorded the highest amount of snowfall at 7 inches, though there may be other isolated spots that saw just as much, Stark said.

Long Island MacArthur Airport in Ronkonkoma had 5.3 inches of snow, Stony Brook had 6 inches, Patchogue had 4 inches, Merrick had a little more than 5 inches, Jericho had 4.5 inches, and Plainview had 5 inches, Stark said.

Starting Sunday through midweek, dry but chilly weather is expected, Stark said, with temperatures likely staying 10 to 15 degrees below normal for this time in March, when temperatures would normally reach to about 50 degrees.

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On Sunday, temperatures will only reach the mid 30s, Stark said, and drop to the upper teens or low 20s overnight into Monday, when the pattern will repeat. A "gradual upward trend" will begin Tuesday when temperatures hit the lower 40s and then climb into the upper 40s Wednesday and the 50s by Thursday.

With Victor Ocasio