2:00 PM | **Another significant snowstorm headed to the NYC metro region from late Sunday night into Monday**

[Latest satellite image of the powerhouse Pacific Ocean storm; courtesy NASA]

Discussion

Overview The ingredients are coming together for another snowstorm to hit the NYC metro region from later Sunday night into Monday night. The first player in this upcoming event is a powerhouse storm system that will slam into California later today with substantial rainfall, thunderstorms, and strong wind gusts. This system will then cross the country over the weekend and its significant supply of moisture will arrive in the Mid-Atlantic region by Sunday night. A second crucial ingredient to the upcoming snowstorm is an extensive area of Arctic high pressure that will set up across the southern tier of Canada by the end of the weekend. One humongous high pressure system will be anchored over south-central Canada by Monday and there will be an extension of this into the southeastern part of Canada.

Preliminary storm details Light snow, possibly mixed with sleet and/or rain at times, is likely to break out later Sunday in the NYC metro region with temperatures up in the 30’s. Arctic cold air – anchored by strong Canadian high pressure – will slowly filter into the region during Sunday night and the any mixed precipitation will change to all-snow by early Monday and snow will be the predominate type of precipitation on Monday. Temperatures will drop through the 20’s and into the teens on Monday as the snow accumulates and they will likely bottom out in the single digits by early Tuesday morning. Snowfall estimates at this time for the NYC metro region are on the order of 6-10 inches and there should be only minor amounts of ice mixed in. The snow winds down Monday night and brutal cold conditions will accompany the clean-up efforts on Tuesday and Wednesday.

Updates will be posted this weekend at “thesiweather.com”.