Two people were electrocuted at a flooded Queens intersection yesterday at the height of a wild storm that snarled traffic and caused local power failures across the city.

In College Point, a live power line fell across a flooded street, electrocuting and killing a man and woman who were trying to escape from their stalled car.

Had they remained inside the vehicle, which was grounded, they might have survived, a Fire Department spokesman said.

Emergency services received 50 calls in a half-hour period yesterday afternoon from Queens alone. The intense weather also triggered power failures across the city, affecting 8,200 Con Edison customers, a company spokeswoman said.

Expressways in all five boroughs were flooded, creating traffic delays.

In Manhattan, two lanes and a service road exit were closed along FDR Drive. Flooding also shut down lanes on the Whitestone Expressway in Queens, the Major Deegan Expressway in the Bronx, and sections of the Belt Parkway in Brooklyn. Staten Island saw some intermittent flooding as well.

The weather front stretched from Westchester County into southern portions of New York City. Rains started around 2:30 p.m. and continued sporadically throughout the day. As the day progressed, the front moved eastwardly into Nassau County, leaving behind spotty areas of rainfall.

Queens saw the heaviest downpours with about an inch and a half of rain falling near LaGuardia airport. More than half an inch of rain, five times the daily average, came down on Central Park. Kennedy and Newark also reported heavy downpours, which delayed flights.

Meteorologists predict a 50% chance of rain and thunderstorms for today, with showers likely tonight and tomorrow.