Jump to content

Dark Star

Meteorologist
  • Posts

    779
  • Joined

  • Last visited

Posts posted by Dark Star

  1. 19 minutes ago, USCG RS said:

    My 2 Cents: Those in the fringe areas, treat this as if it will be a hit and take precautions, especially NYC, LI, NW and CNJ and SE CT on up through SE MA. This snowfall will be incredibly heavy where the axis sets up and you do not want to be caught off guard. This is the type of snow which creates traffic havoc and can lead to some of these horror stories you hear of when people are stuck for extended periods of times. Not saying it will be apocalyptic, but something to keep in mind and prepare for. 

    Dunno, I don't think any MAJOR roadway in NYC (proper) will be terribly affected?

    • Like 2
  2. 1 hour ago, Evie3 said:

    I am unqualified to comment here, so please excuse my lack of education, but I seem to vaguely remember that happening here in Somerset County NJ during the big snowstorm in January 1996 - the storm that shut down the state for a few days.  Granted that was an usual storm and I'm sure the temperature profile preceding it was more favorable.

    As I eluded, there are exceptions.  January 1996 was a huge snowstorm with no temperature issues.  Tomorrow is a marginal storm, where it all has to go right...

  3. 39 minutes ago, NJwx85 said:

    To be fair, the dry slotting would be temporary following by several hours of backend snow as the system moves East. 

    You can kind of see the possible dry slot here on the 12K NAM.

    For areas along I-80 and points North this is going to be a very big snow storm.

    namconus_ref_frzn_neus_25.png

    Just my 2 cents, I have never seen "signifcant" accumulating snow in a marginal temperature situation where dry slotting has occurred at some point during the storm.  I don't think it is very common to have a dry slot, followed by heavy accumulating snow under any conditions in the immediate NYC metro area?

    • Thanks 1
  4. 15 minutes ago, LongBeachSurfFreak said:

    What eventually happens in the city will come down to banding. As this is a dynamic rapidly deepening  system with plenty of moisture, 2” hour type bands should set up during the hight of the storm. If they end up over the city, it will accumulate even on pavement. I think the November rush our crusher attests to what rates can do. If we end up with .5” hour rates, it’s a grass storm. (City)

    Banding?  What exactly will be the causes?  Won't rates be fairly uniform, depending upon your location in relation to the center of the low?

  5. 24 minutes ago, NJwx85 said:

    This isn’t a late season storm. We have a long history of getting big snows in mid February. We have about another month. After March 10th it’s pretty much over for I95 unless we end up with a very anomalous pattern.

    Given recent model trends and a significant shift southwards, closed 700mb low South of LI favors a band of heavy snow tomorrow for a few hours near I-80/287. Wouldn’t be surprised to see a few 12”+ reports especially in the higher elevation areas of NW NJ into Orange County, NY. 
     

    I like 4-8” for the Bronx and Southern Westchester. 6-12” North of HPN. 3-6” for Central Park and 2-4” for South facing Brooklyn and Queens. There will be a Southerly flow to start which will cause mixing issues and the 700mb low close proximity could cause dry slotting in Central NJ and South shore of LI. 
     

    Could be one of those storms where SI sees 3-5” and Sandy Hook gets nothing.

    Any type of dry slotting with marginal temperatures spells no accumulation for coastal areas...

  6. 2 minutes ago, donsutherland1 said:

    Its deepening will bring in some colder air, but the overall air mass involved isn’t especially cold. There might be some moderate wet snow at the height of the storm, but it will be a fast mover. Most of its precipitation will fall over a 12-hour period and it won’t all be accumulating snow. 

    This morning, Quebec is generally in the mid 20s.  Obviously this will change, but this area will likely warm as temperatures are expected to hit near 60 in NE Jersey on Saturday.  You would need some rapid cooling in Northern New England Sunday into Monday for any cold air to be tapped into?

    • Like 2
  7. 4 hours ago, LibertyBell said:

    It's interesting Don, we never heard the term "atmospheric river" back in the 80s, 90s, 00s, or even the 10s.... it only started being commonly used now.  In previous decades we used to just call them Pacific coastal lows.... why is this term being used more frequently now and why don't we use this term for Atlantic coastal lows too?

     

    Methinks "Atmospheric Rivers" is a media created term, and it stuck.  

    • Thanks 2
  8. 15 minutes ago, Volcanic Winter said:

    Past couple nights I actually radiated down to near average lows, feels like a tremendous feat! 22 right now, average low is 21. Same as the night before. 

    It’s really wild how much of a struggle it is for us to hit our average low temperatures anymore. It seems like it’s far easier for daytime highs to be NN/BN than low temperatures. 

    This has something to do with excess moisture in the air / humidity blocking the ability to properly radiate heat at night? Just the sheer persistence of AN nightly lows is interesting to me. 

    What was your lowest temperature so far this season?

    • Like 1
  9. 31 minutes ago, LibertyBell said:

    Are all signs of the Western drought gone, Chris? No more dangers of empty reservoirs, lakes dry, visible lake bottoms, etc.?

     

    Unfortunately, even with flooding reservoirs, this volume will not last the entire year.  Much of it is wasted, as flood waters spill into areas not used for potable water uses.  What seems to be the key, in California, is enough "stored" water, in the form of snow in the mountainous areas.  

    • Like 1
  10. 1 hour ago, the_other_guy said:

    That explains the lack of snow.

     

    Although some posters are trying to disconnect the two, you cant snow when it is this warm, especially in an uber Urban environment

    Which is why I developed the Snow "triangle" for the greater NYC metro area...

    SnowTriangle.jpg

    • Like 2
×
×
  • Create New...