Jump to content
  • Member Statistics

    18,603
    Total Members
    14,841
    Most Online
    eloveday
    Newest Member
    eloveday
    Joined

Wednesday Feb 18 Mixed event. NoP refresher?


HoarfrostHubb
 Share

Recommended Posts

Bit of a northward tickle from 12z to 0z on the GFS it appears. The differences upstream over NY state at 18z on Weds are quite shocking between the GFS and even the Euro compared to the NAM.

There’s been a very steady and now becoming quite substantial northern trend on AIFS and Euro-AI models over the past couple days. Just look at projections for 2/19 at 0z since 12z on Valentine’s Day. The N-NE extent of QPF has gone from the tristate region to CNE. The GFS has also mirrored these steady ticks over the last 48 hours. Been thinking about medium range overmodeled confluence over recent days, looks like that was indeed the case again.

What DOES give me pause on this is the NAM is getting closer to range and is doubling down on the weaker/south idea.

  • Like 2
Link to comment
Share on other sites

5 minutes ago, Boston Bulldog said:

Bit of a northward tickle from 12z to 0z on the GFS it appears. The differences upstream over NY state at 18z on Weds are quite shocking between the GFS and even the Euro compared to the NAM.

There’s been a very steady and now becoming quite substantial northern trend on AI models over the past couple days as well. Been thinking about medium range overmodeled confluence over recent days, looks like that was indeed the case again.

Still plenty of time to steal someone’s snow 

  • Weenie 1
Link to comment
Share on other sites

4 minutes ago, weatherwiz said:

oof this is becoming a bit ugly. Really may be Pike north for best shot at any accumulations more than a few inches...maybe CT Hills can squeak an inch or two. Such a tough forecast, the band of snow is going to be so narrow

Relatively low impact.  Not like the rates will be high.  DPWs won't have much issue

  • Like 1
Link to comment
Share on other sites

Just now, HoarfrostHubb said:

Relatively low impact.  Not like the rates will be high.  DPWs won't have much issue

I was thinking yesterday someone could probably pull off 3-4-5" but I don't see that happening now. I mean I'm sure someone in the Berks will do it way up but looking around at forecast soundings on the 12z NAM...they absolutely blow. Much of the precip type tomorrow is probably going to be rain (we'll say rain showers because the intensities overall probably not heavy outside of a narrow area) with some sleet pellets mixing in...and some areas will bounce around between like 70-30 or 80/20 mixture and you'll probably have to get into the hills to get some mangled snow flakes mixing in. 

  • Like 1
Link to comment
Share on other sites

5 minutes ago, CoastalWx said:

What a weird system. Very narrow area that may do ok. 

I wonder if this energy diving in is the make or break for multiple inches of accumulation. This is some pretty decent shortwave energy diving along with a rapid increase in the lapse rates so it becomes fairly unstable aloft. This also would support sort of a re-blossoming of precipitation downstream of it. 

image.png.f5328a00bb7ef18bc53b1ea4523995a5.png

Link to comment
Share on other sites

Just now, weatherwiz said:

I wonder if this energy diving in is the make or break for multiple inches of accumulation. This is some pretty decent shortwave energy diving along with a rapid increase in the lapse rates so it becomes fairly unstable aloft. This also would support sort of a re-blossoming of precipitation downstream of it. 

image.png.f5328a00bb7ef18bc53b1ea4523995a5.png

Drier air working in below 700mb though. So it’s a battle.

  • Like 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

×
×
  • Create New...