An area of low pressure developed over the Gulf of Mexico and moved across the Southeastern United States before starting to move northeastward along the eastern seaboard on Tuesday January 11th. Meanwhile, another area of low pressure was moving across the Ohio Valley and tracking eastward toward our region. These two low pressure systems then merged into one low pressure system east of the forecast area on Tuesday night. It then intensified and rapidly pulled away from our area on Wednesday morning.

A Winter Storm Watch was issued at 401am on Monday January 10 for the entire Mount Holly forecast area. At 342pm on January 10th, the Winter Storm Watch was upgraded to Winter Storm Warning for the following areas: New Castle, Kent, and Sussex (not including the coast) in Delaware; Morris, Hunterdon, Somerset, Middlesex, Monmouth, Mercer, Salem, Gloucester, Camden, Burlington, Ocean, Cumberland, Atlantic, and Cape May in New Jersey, not including the coastal strip from Ocean County southward. At 424am on January 11th, the Winter Storm Watch was upgraded to a Winter Storm Warning in the following areas: Sussex, Warren and Coastal Ocean in New Jersey; Chester, Montogomery and Bucks in Pennsylvania. Also, the Winter Storm Watch was upgraded to a Winter Weather Advisory for the following areas: Coastal Sussex in Delaware; Cecil, Kent, Queen Anne's, Caroline and Talbot in Maryland; Coastal Atlantic and Coastal Cape May in New Jersey; Carbon, Monroe, Berks, Lehigh and Northampton in Pennsylvania. At 1236am on January 12th, the Winter Storm Warning was downgraded to a Winter Weather Advisory for the following areas: Sussex in Delaware. At 203am on January 12th, the Winter Storm Warning was canceled for the following areas: New Castle and Kent in Delaware. Also, the Winter Weather Advisory was canceled for the following areas: All of Sussex in Delaware; Cecil, Kent, Queen Anne's, Caroline and Talbot in Maryland. At 337am on January 12th, the Winter Storm Warning was downgraded to a Winter Weather Advisory for the following areas: Burlington in New Jersey; Bucks in Pennsylvania. At this time the Winter Storm Warning was canceled for the following areas: Salem, Gloucester, Camden, Cumberland, Atlantic and Cape May in New Jersey; Chester, Montgomery, Delaware and Philadelphia in Pennsylvania. Also at this time, the Winter Weather Advisory was canceled for the following areas: Coastal Atlantic and Coastal Cape May in New Jersey; Berks in Pennsylvania. At 455am on January 12th, the Winter Storm Warning was downgraded to a Winter Weather Advisory for the following areas: Sussex, Warren, Morris, Somerset, Middlesex and Monmouth in New Jersey. At the same time the Winter Storm Warning was canceled for Hunterdon, Mercer and Ocean in New Jersey. Also, the Winter Weather Advisory was canceled for the following areas: Burlington in New Jersey; Carbon, Lehigh, Northampton and Bucks in Pennsylvania. At 650am on January 12th, the remaining Winter Weather Advisories were canceled.

Some scattered light snow showers moved into the area late Tuesday morning spreading northward through the afternoon and evening. Some mixed precipitation (snow, sleet, freezing rain and/or plain rain) was reported at the onset, especially across the southern portions of the forecast area and along the coast where temperatures were in the lower 30s, but eventually a changeover to all snow occurred across the area by late Tuesday night. Snow began to taper off from southwest to northeast and ended around daybreak Wednesday morning as the low moved further away from our area. Snowfall totals were highest across northern and central New Jersey, with the highest amounts reported in Middlesex and Monmouth Counties. Across the region, snow totals varied with 0-3 inches across parts of the Delmarva into southern New Jersey and along the coast. Roughly 2/3rds of the region had around 6 inches of snow or less while the remaining 1/3rd had 6-10 inches reported. 

Winds did not end up being a major concern during the storm as they remained fairly light across the region. However, as the low pressure system moved away from our area, gusty northwest winds caused some blowing and drifting of snow on Wednesday.

The only impacts from this event were the usual traffic accidents associated with inclement weather as well as numerous school closings on Wednesday January 12th.

Information contained in this summary is preliminary. More complete and/or detailed information may be contained in subsequent monthly NOAA storm data publications.