Author: GreaterPhilaSevereWeather

As we move into now casting on this storm. Here are some of the latest details we have. 

Snow will begin to move into the area over the next few hours. We expect to see a minor lull in the overnight hours from about 3am-7am. Total snowfall amounts will be between 2-5” from this timeframe. Tomorrow the snow is really going to get going between 7-10am until about 10-11pm and areas will see snowfall rates of over 1”+ an hour at times. Try to avoid any travel on Monday during the storm.

Tuesday morning the snow will taper off than it is possible Tuesday afternoon a few additional snow showers are possible. We are advising everyone to stay off the roads tomorrow during the storm. One thing to note is that while this is now a nowcasting event. We are watching hour by hour the progress as well as any changes to the forecast. In the event the warmer air moves into the mid level there is a chance of mixing and dry air reducing  total accumulation. While at this point not certain it will happen but the possibility is there and we don’t want to rule it out. 

The NWS has updated the winter storm warning which now calls for 13-18” of snow with wind gust as high as 35mph. This will expire at 1pm Tuesday. 

Philadelphia | Lower Bucks | Trenton | Princeton Significant snowfall is expected in these areas. 10-14” + Could see additional snowfall where CCB sets up.

Central/ Upper Bucks 10-14” could see higher amounts depending on ccb placement. 

Allentown | Lehigh Valley 12-18”

Lancaster | KOP 10-14” could see more depending on setup. 

Atlantic City | Wildwood 1-3” Snow to mix to rain and possibly ending as snow on the backend. 

As you have heard we are tracking a major winter storm that will begin late tomorrow afternoon and last until Tuesday morning. This storm will produce significant snowfall across our viewing area. Take account the high snowfall totals with gusty winds power outages are very possible as the low starts to crank off shore and the winds really pick up. 

The snow will begin after 4pm and continue through about dinner time on Tuesday. We expect the heaviest snowfall to happen between late morning/Midday Monday until around 9am on Tuesday morning. As we have mentioned winds will be gusty during the storm with winds 10-20mph and sustained guest up to 50mph is possible. Could some areas see a blizzard warning, it is possible but at this point no warnings are in effect. Blowing and drifting snow will cause travel issues. Also travel should be limited during the storm as visibility will be less than 1 miles at times. We might we have some THUNDERSNOW along the Philadelphia area.

Philadelphia | Lower Bucks | Trenton | Princeton Significant snowfall is expected in these areas. 8-12” but some areas could see more than 16” if bands setup.  

Central/ Upper Bucks 6-12” could see higher amounts depending on pending. 

Allentown | Lehigh Valley 4-6” Snow with some sleet possible.

Lancaster | KOP 8-12” could see more depending on setup. 

Atlantic City | Wildwood 1-3” Snow to mix to rain and possibly ending as snow on the backend. 

We are tracking a Major Winter Storm that will bring Snow, Sleet and Freezing Rain to parts of the area. While we are still working to determine a final track. At this hour we can say that confidence is growing that this storm will cause impact to our area Sunday afternoon until Tuesday morning. While the snow will begin on Sunday afternoon. A large amount of snow could fall between Sunday night and Monday, with additional snowfall through Tuesday as the storm strengthens as it moves to our north. Some areas could see as much as a foot of snow come Tuesday.

SNOW– At this time we are going with a MODERATE threat of snow over the timeframe stated above.

Freezing Rain– SLIGHT chance locations within the area could see freezing rain/wintery mix. If this does happen it would be locations closest to the shore points.

WIND/POWER Outages– ENHANCE Threat of gusty winds and SLIGHT chance of power outages throughout the storm. Areas to the north could see blizzard warnings due to high winds as the storm cranks off the coast. Confidence is LOW that we will see blizzard warnings issued for our area at this time.

WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations over 7
  inches possible. Winds could gust as high as 50 mph creating
  significant blowing and drifting of snow.

* WHERE...Portions of central, northern and southern New Jersey
  and southeast Pennsylvania.

* WHEN...From Sunday afternoon through late Monday night.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday evening commute.

* ADDITIONAL DETAILS...Snow will develop west to east late Sunday
  and last through late Monday or early Tuesday. A period of
  wintry mix or rain could occur Sunday night and Monday morning,
  especially along and near the coast, before turning back to snow
  Monday afternoon. The highest snowfall rates are most likely to
  occur late Monday.

SNOW MAP- We will have a snow map released mid day tomorrow. Our team is working around the clock to bring you the latest information on this upcoming storm. Now is a great time to prepare for a long duration winter storm.

PLEASE remember while this storm is a long duration, it does NOT mean we will have a substantial amount of snow.