Early morning fog along North Ocean Avenue in Patchogue this...

Early morning fog along North Ocean Avenue in Patchogue this morning, Feb. 2, 2014. Credit: James Carbone

A dense fog advisory in effect through 10 a.m. Sunday on Long Island has been canceled, according to the National Weather Service.

Visibility, which at one point was less than a quarter mile has improved to 3 to 4 miles as the fog has lifted, meteorologists at the Upton station said.

The reduced visibilities, the weather service said, made "driving dangerous at times."

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