Jump to content
  • Member Statistics

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

Winter storm threat disc 1/25/13-1/26/13


Allsnow

Recommended Posts

  • Replies 1.4k
  • Created
  • Last Reply

After running in 10-15F weather for the past few days, 50 will feel awesome.  I do agree the snow will be nice, but this cold with a bare ground so far has been a waste.

The next trough swings back in Friday AM . Wed Thrs , may follow what we just this past SAT - SUN , its normal in between troughs .

Then you " hope " The first 10 days of FEB can yield something . But too far out to look at modeled systems seriously .

MJO , PNA look good , hopefully we can the southern jet to break through early Feb , but if you cant get the NAO neg , you can wrap up on the east coast .

Link to comment
Share on other sites

Keep in mind that there's more to ratios than temps. Could be too cold or too little forcing for anything more than a trace with these negligible QPFs.

Think models take dry air into account , think CNJ , can squeeze out 2 inches . MT HOLLY seemed to think so this AM

Link to comment
Share on other sites

Are you taking in to account the ratios? I think areas south and east of NYC could see an inch or two.

I'm taking into account the amount of dry air in place combined with the low precip rates. We're talking about 0.10" over about 6 hours. A coating to inch maybe more out be me as it looks like western zones get 0.10"+.

Link to comment
Share on other sites

I had a suspicion that this one would fail, but for the wrong reasons I guess since at first I thought it would be a warm system. This is a heavily Nina-favored pattern, and it's just hard to get anything meaningful from these ridiculously fast and progressive patterns unless you have some kind of a block to the north like in 2010-11. Either that or you have to luck out with perfect timing of shortwaves and amplitudes. We have another shot early next month at snow, but again we have to hope the pattern slows down or it's hard for me to see much happening.

Link to comment
Share on other sites

Craig Allen
 

 

"Based on 12z nam, gfs and rgem, we're likely to see anything from a dusting to an inch or 3. Nam and gfs qpf values are < .10". Normally, that converts to about 1" but the air is cold and snow will be subject to the 'fluff factor'- light and powdery- so the conversion might be as much as 15 or 20:1.
The rgem qpf is a little more robust, developing the offshore system a little faster and throwing back .15" to .25" which could tally up to about 3" especially eastern suburbs."

Link to comment
Share on other sites

Here's the deal...the ratios will be about half of what they were with the last storm and last storm it actually was modeled on NAM sim radar a few times for a band to move in through Philadelphia and be very heavy. This storm it does not model that, just a bit more of an expansive area of light snow, no heavy banding this time....with the lower ratios. This time I'm looking for a widespread coating to 1" or so but not many amounts above 2"

Link to comment
Share on other sites

Hopefully, this puts NYC above the inch accumulation level for December and January so

we just make it out of the 97-98 and 94-95 basement.

 

Lowest Snowfall Dec-Jan since 1990.

 

2012-2013...0.4..so far

2011-2012...4.3

2007-2008..2.9

2006-2007...2.6

2001-2002...3.5

1997-1998...0.5

1996-1997...4.4

1994-1995...0.2

1992-1993...1.9

1991-1992....2.

Link to comment
Share on other sites

Hopefully, this puts NYC above the inch accumulation level for December and January so

we just make it out of the 97-98 and 94-95 basement.

 

Lowest Snowfall Dec-Jan since 1990.

 

2012-2013...0.4..so far

2011-2012...4.3

2007-2008..2.9

2006-2007...2.6

2001-2002...3.5

1997-1998...0.5

1996-1997...4.4

1994-1995...0.2

1992-1993...1.9

1991-1992....2.

 

Awful, just awful. 

Link to comment
Share on other sites

We only had about 0.1" of liquid with Monday's event, ended up with around 3" of snow. 850's are even colder for this event. NAM has 850's around -15, last time it was around -10.

clearly you don't know enough about ratios to post about them. there are multiple factors which determine snow to liquid ratios and just looking at 850 temps won't tell you enough

Link to comment
Share on other sites

clearly you don't know enough about ratios to post about them. there are multiple factors which determine snow to liquid ratios and just looking at 850 temps won't tell you enough

You're right. Never said I was a snow ratio guru. Most of the time I ask others.  So what's your opinion on the ratios with this event?

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...