Jump to content
  • Member Statistics

    17,603
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Wintry mix potential weekend of Jan 18-19, 2020


wdrag
 Share

Recommended Posts

10 minutes ago, snowman19 said:

Of course as soon as Upton bumps up expected totals, the NAM backs off: https://www.tropicaltidbits.com/analysis/models/?model=namconus&region=neus&pkg=asnowd&runtime=2020011718&fh=48

The nam has not shown the higher amounts like the Globals. The other short range guidance has bought into the global ideas but not the nams. I will be interested to see if they cave tonight or continue to forecast that warm layer. 

  • Like 1
Link to comment
Share on other sites

Some of the recent model runs have grown a little snowier in the NYC Metro area and surrounding region. The exception was the 12z GGEM, which had little or no measurable snow in this area. As it is an outlier, the GGEM was discounted.

My final snowfall estimates are:

Albany: 3"-6"
Binghamton: 3"-6"
Boston: 2"-4"
Bridgeport: 2"-4"
Islip: 1"-3"
New York City: 2"-4"
Newark: 2"-4"
Philadelphia: 2" or less
Poughkeepsie: 3"-6"
Scranton: 3"-6"

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

19 minutes ago, snowman19 said:

Of course as soon as Upton bumps up expected totals, the NAM backs off: https://www.tropicaltidbits.com/analysis/models/?model=namconus&region=neus&pkg=asnowd&runtime=2020011718&fh=48

Trending snowier sans NAM....nothing like an earlier "event" this season where Upton upped totals after nailing it as a non event previously. Raised totals when it was obviously a non event. I forget the date...

Link to comment
Share on other sites

Just now, BxEngine said:

Weird...doesnt seem like it backed off at all. 

7B256845-6BB8-4EFD-9EFD-081D23BA03CB.gif

The NAM has somewhat of a dry slot behind that initial finger of WAA precip.  Other models don’t really have that.  The handling of the jet dynamics could be why as I said has been pointed out in the MA forum this week.  I’ve seen models like to show that dry nose before in that spot behind that WAA finger and usually it doesn’t happen. You see the whole area tend to back build and then your shield from the main low arrives soon after.  That said I wouldn’t be too confident NYC metro sees anything over 3-4 

  • Like 2
Link to comment
Share on other sites

We rarely see accumulating snow in the New York City metro area with the surface low that tracks north of Chicago North of Detroit and north of Buffalo. I guess this is what a fresh injection of Artic Air can do. Dew points are pretty impressive cold right now below zero throughout the Metro -10 Southern Connecticut -5 Central Park

  • Like 1
Link to comment
Share on other sites

21 minutes ago, SnowGoose69 said:

The NAM has somewhat of a dry slot behind that initial finger of WAA precip.  Other models don’t really have that.  The handling of the jet dynamics could be why as I said has been pointed out in the MA forum this week.  I’ve seen models like to show that dry nose before in that spot behind that WAA finger and usually it doesn’t happen. You see the whole area tend to back build and then your shield from the main low arrives soon after.  That said I wouldn’t be too confident NYC metro sees anything over 3-4 

Very true I've seen this happen many times. 

For those talking about the NAM's performance, it was awful for the early December 'event'. Although in recent years I think it's done' quite well. 

Link to comment
Share on other sites

1 hour ago, Barman49 said:

Is it just me or does Upton seem pretty aggressive with 3-4 at JFK? I know it's a light south wind but that seems a bit optimistic no?

Sent from my Lenovo TB-X605F using Tapatalk
 

I think 3” is too high for JFK. I’d go 1-2” there. LGA and Central Park maybe 3”. If this comes in heavy and can last a few hours before changing over, all bets are off though. It’ll really be about watching the radar and how strong the onshore wind gets tomorrow. 

  • Like 1
Link to comment
Share on other sites

2 minutes ago, Isotherm said:

 

 

Surface southerly winds inland from the coast will be light through late afternoon:

 

1579377600-Zee0FipoePs.png

 

 

Temperatures rise during the evening on stronger southerlies:

 

1579406400-gzusekvXniM.png

Yeah, I think nyc and immediate burbs have to 7-8pm before the change. Euro cut back on qpf this run which ticked accumulations down. I would like to see the nam loose that warm layer tonight at 00z. 

  • Like 2
  • Weenie 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...