November 27, 2012 Light Snow/Rain
The second snow event on November 2012 affected the region on 11/27, when a weak low pressure quickly moved through, producing light to moderate snowfall over Pennsylvania, northern New Jersey and southern New England and moderate rain elsewhere. Snow totals were minimal compared to the early November storm, but managed to peak at 4-6 inches in northwest NJ and northeast PA.
November 27, 2012 Storm Archive
November 22 – Storm Possible Next Week
November 23 – Light Rain/Snow Likely Tuesday
November 24 – Weak Storm For Tuesday
November 26 – Tuesday Rain/Snow, Then Cold Again
November 27 – Evening Update
As a trough entered the region around November 25-26, a weak shortwave dived southeast through the northwest and central US, producing scattered rain/snow showers with no defined surface low pressure. Late on Monday, November 26, a broad, weak and disorganized low pressure began to take shape near Louisiana and Mississippi, spreading light rain showers to its north.
The low pressure began to become more consolidated on Tuesday afternoon, November 27, as it quickly moved through southeast VA but remained weak, with a minimum pressure of only 1019 millibars. Moderate precipitation meanwhile spread further north into the Mid Atlantic where temperatures aloft were below freezing, allowing snow to fall across parts of Pennsylvania and New Jersey. The low pressure quickly moved out overnight, moving offshore on Wednesday, November 28, as it slightly deepened to about 1010 mb.
Forecasting The Storm
This section will be added soon.
Radar image from 9:08 AM, from the National Weather Service, showing widespread light-moderate precipitation covering the northern Mid Atlantic region. This fell in the form of snow in Pennsylvania and northern NJ.
Precipitation began to spread into the region early in the morning hours, with steady light to moderate snow falling in Pennsylvania by 8 AM. Around the same time, a band of light snow spread into northern NJ, with light precipitation covering the majority of the area by 10 AM. The rain/snow line remained mostly consistent along the I-95 corridor, with rain and non-accumulating snow in NYC, Long Island and coastal CT, and snow elsewhere. Between 10 AM and 1 PM, heavy snow affected northwestern NJ and SE NY, where the higher snow totals from the storm were observed. The precipitation gradually moved offshore in the mid-late afternoon, with NYC and locations further west drying up by 6 PM, while light rain in Long Island and snow in SE CT persisted for another few hours.