NEW YORK (CBSNewYork/AP) — The nonstop rain of the afternoon let up for the Tri-State Area Sunday, but cold air was making its way in and the season’s first major snowstorm could be coming later in the week.

An urban and small stream flood advisory was issued earlier Sunday for Hudson, Essex, Bergen, Union, and Passaic counties in New Jersey.

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CBS 2 Meteorologist Elise Finch reported the rain totaled 1.56 inches in Islip; 1.27 inches in Old Bridge, N.J.; 1.2 inches in the city; 1.14 inches in Walpack, N.J.; and 1.1 inches in Peekskill.

The conditions earlier caused delays at Kennedy and Newark Liberty international airports. The Federal Aviation Administration said Newark experienced delays of 1 hour and 40 minutes Sunday afternoon, while high winds at JFK delayed flights by 1 hour and 47 minutes.

Travel times were back to normal late Sunday night.

Overnight, the temperature will drop to 34 degrees, and will top out at 38 on Monday, Finch reported. At midnight New Year’s morning, the temperature will be about 21 degrees, but will seem colder with the wind chill.

And later in the week, even colder air with highs in the 20s will set the stage for the first major snowstorm of the new year, Finch reported.

There are two scenarios for the snowstorm that is expected on Thursday into Friday. In one scenario, a low-pressure system will set up to the south and strengthen rapidly, resulting in a significant snowfall for the Tri-State Area.

A second scenario places the low-pressure system slightly farther to the east and strengthening more slowly – resulting in a major snow event for New England, but likely just an inch or two for the Tri-State Area.

The forecast high for Tuesday is 35, Wednesday 31, Thursday, 29, and Friday 22.

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(TM and © Copyright 2013 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2013 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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