Mother Nature snowed on spring Friday in a wintry nuisance that iced up roads during the evening rush hour and twanged the last nerve of cold-weary Long Islanders.

"When my 7-year-old says she has had enough of snow . . . when kids don't like the snow, there's something weird," said Michael Cosgrove, organizer for Saturday's Rockville Centre St. Patrick's Parade at noon -- all in green and white.

In what many hoped would be the last flaky twist this season, most of the Island got 4 to 6 inches, but central to northern Brookhaven got the brunt, with 7 inches in Rocky Point by 8:50 p.m., according to meteorologist David Roache of the National Weather Service in Upton.

As temperatures kept falling below freezing, the service extended its winter advisory from 2 a.m. to 4 a.m. Saturday, with light snow mixing with freezing rain near the end.

The slush and ice caused an abundance of car mishaps during rush hour in Suffolk, but there were no serious injuries, authorities said, while Nassau had no spike in accidents.

The flakes showed up about noon but didn't really stick to roadways Friday until about the official start of spring, at 6:45 p.m.

Snowfall-measuring reports from the public were sparse, "way down" from previous storms, said Jay Engle, another meteorologist at the service.

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"I think people have winter fatigue," he said.

The brunt of the snow was dumped on commuters, meteorologists said. There were 5.3 inches by 6:30 p.m. in Sound Beach, 5 inches in Mount Sinai by 7 p.m. and 4.5 inches in Manorville just before 6 p.m., the service's snow tallies said.

The weather caused a little grumbling for Tom Pratt, vice president of construction contractor Pratt Brothers in Holtsville. First, he thought workers would have to bolt snow blades back onto trucks -- an hour's work per vehicle. Then, as snow petered out, he was at home because the municipalities didn't need to call him out.

"It's a blessing and a curse," said Pratt, jokingly calling for "an order of protection" against the weather. "It would have been nice for one last shot at making some money in the snow, but I'm also glad it's the last of the snow."

For others, the springtime white was far from a blessing.

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"I'm a golfer," Dix Hills salesman Vincent Tavano, 28, said at an East Hills shopping center. "I was looking to get out on the golf course by this weekend, so I'm just sick of this."

In Brookhaven, Highway Superintendent Dan Losquadro said his crews worked overtime filling potholes this week. Then they started Thursday putting sanders and plows back onto trucks. Next, they'll take them off again after the snow.

"The plows are going to . . . damage the work we've already done," he said of the repairs. "There's nothing we can do to stop it."

With Kelly Zegers

and Gary Dymski