Jump to content
  • Member Statistics

    17,606
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Watching closely .. February 1-3rd for moderate to major coastal event


Typhoon Tip
 Share

Recommended Posts

Box AFD:

Heavy snow...

As mentioned above very cold/dry airmass over the region this evening will set the stage for an impressive front end thump of
heavy snow Monday afternoon and evening. Very strong easterly jet at 850 mb of 5 standard deviations will provide an Atlantic
fire hose of moisture to overrun the cold/dry airmass currently over the region. This strong forcing for ascent will be enhanced
by mid level instability Monday afternoon and evening as dry slot approaches. This entrainment of mid level dry air will
steepen mid level lapse rates and result in 1-2" hourly snowfall rates Mon afternoon and evening. HREF supports this with high
probs of 1-2" hourly rates. Even the HREF hourly mean is 1.5-2.0 inches. That combined with instability aloft, would not be
surprised if 3+ inch hourly rates for a time in the strongest snow bands, along with a low risk of TSSN! Nevertheless, travel
will be extremely difficult Monday afternoon and evening given these hourly snowfall rates. Given the evaporative cooling
potential initially, followed the colder guidance here. Although given low level temps are marginal across Eastern CT/RI/MA,
followed the lower SLR from the NBM which are less than 10-1. Although this may be offset early on as snow growth is very
favorable 18z-00z. Thus heavy wet snow across this region will increase the risk for snow loading issues/tree damage and power
outages.

  • Like 3
Link to comment
Share on other sites

4 minutes ago, wxsniss said:

Box AFD:

Heavy snow...

As mentioned above very cold/dry airmass over the region this evening will set the stage for an impressive front end thump of
heavy snow Monday afternoon and evening. Very strong easterly jet at 850 mb of 5 standard deviations will provide an Atlantic
fire hose of moisture to overrun the cold/dry airmass currently over the region. This strong forcing for ascent will be enhanced
by mid level instability Monday afternoon and evening as dry slot approaches. This entrainment of mid level dry air will
steepen mid level lapse rates and result in 1-2" hourly snowfall rates Mon afternoon and evening. HREF supports this with high
probs of 1-2" hourly rates. Even the HREF hourly mean is 1.5-2.0 inches. That combined with instability aloft, would not be
surprised if 3+ inch hourly rates for a time in the strongest snow bands, along with a low risk of TSSN! Nevertheless, travel
will be extremely difficult Monday afternoon and evening given these hourly snowfall rates. Given the evaporative cooling
potential initially, followed the colder guidance here. Although given low level temps are marginal across Eastern CT/RI/MA,
followed the lower SLR from the NBM which are less than 10-1. Although this may be offset early on as snow growth is very
favorable 18z-00z. Thus heavy wet snow across this region will increase the risk for snow loading issues/tree damage and power
outages.

That’s a keeper of an AFD for sure!

  • Like 1
Link to comment
Share on other sites

1 hour ago, weatherwiz said:

The H7 closing off so early and actually becoming pretty tightly compact (is that even the proper term for it lol) seems to ingest alot of dry air ahead of it and while we do try to recover it might not be enough. Just another ughhhhhhhh here lol. 

Your getting me nervous ha!

And on que V 16 drops a tad more to about 13 to 14.

Link to comment
Share on other sites

2 minutes ago, RUNNAWAYICEBERG said:

We’ll get a foot and probably a touch more. Not historic but great. Don’t sweat it.

Yup ..if that 7 H low would behave and just move ENE it would likely be different.   N NJ NE PA SNY elevations ...Crushburger

Still we take... a foot maybe a lil more  and enjoy and keep them good vibes goin

Link to comment
Share on other sites

4 minutes ago, STILL N OF PIKE said:

Yup ..if that 7 H low would behave and just move ENE it would likely be different.   N NJ NE PA SNY elevations ...Crushburger

Still we take... a foot maybe a lil more  and enjoy and keep them good vibes goin

A h7 kick NE miracle from above would be welcomed but we not demanded. Appreciate what we get and vibe to it. GL up there.

  • Like 1
Link to comment
Share on other sites

7 minutes ago, tiger_deF said:

As someone still fairly new to weather how come this event and its setup is considered more unusual?

Not really that unusual.  Actually not that uncommon every couple of years or so. Very fast easterly flow at 850 mb is conducive to lots of lift in the atmosphere 

  • 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

  • Recently Browsing   0 members

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