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1/21 clipper/coastal


Zelocita Weather

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It's pretty common for these systems to largely miss this area. The low develops once it reaches the baraclonc zone offshore. You can see looking at the high res models how the precip just develops 3-6 hours to late.

They can also sneak up on people last minute. I wouldn't be surprised if models struggled with this until under 24 hrs and even then there could be some surprises like some saw yesterday. 

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I'd toss this for now til we see the ensembles, GGEM, Euro, the normally way west NAM at this range is further east than the GFS, although the GFS has not had too many hiccups this year inside 4 days I'd be cautious still.

 

 

I'd toss this for now til we see the ensembles, GGEM, Euro, the normally way west NAM at this range is further east than the GFS, although the GFS has not had too many hiccups this year inside 4 days I'd be cautious still.

I wouldn't toss anything since its still over 2 days away and we won't need much qpf to get snowcover and all surfaces covered because of the very cold airmass it has to work with - this actually is a very dynamic situation because of the clashes in airmasses with fresh arctic air and a warmer ocean

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Lol at you guys dismissing the tues threat. This hasn't trended away from you it's trending towards you .

If anything you should be looking at data that supports this.

Like take a look at the last 4 runs of the GFS and NAM. Wait for the Canadian then the Euro see If this

Trend is seen by all the global models

To dismiss this out of hand to me is premature

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Lol at you guys dismissing the tues threat. This hasn't trended away from you it's trending towards you .

If anything you should be looking at data that supports this.

Like take a look at the last 4 runs of the GFS and NAM. Wait for the Canadian then the Euro see If this

Trend is seen by all the global models

To dismiss this out of hand to me is premature

I don't see anyone dismissing it. We're just being cautious about jumping on board just yet.

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Yeah for a solid inch or two..just not ready to jump on board for more yet and hey I'll take whatever

Fair. It's a nickel and dime system. Except if you are on

Long Island .25 thru that air would b nice . I Will take 2 to get the ball rolling

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http://www.wpc.ncep.noaa.gov/discussions/hpcdiscussions.php?disc=pmdhmd

 

MODEL DIAGNOSTIC DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1143 AM EST SUN JAN 19 2014

VALID JAN 19/1200 UTC THRU JAN 23/0000 UTC

...SEE NOUS42 KWNO (ADMNFD) FOR THE STATUS OF THE UPPER AIR
INGEST...

==================================================
12Z NAM/GFS EVALUATION AND PRELIMINARY PREFERENCES
==================================================
NAM/GFS INITIALIZATION ERRORS DO NOT APPEAR TO
SIGNIFICANTLY AFFECT THEIR LARGE SCALE OUTPUT.
==================================================

...AMPLIFICATION OF THE EASTERN U.S. TROUGH...
...COASTAL LOW DEVELOPMENT TUESDAY...

PREFERENCE: BLEND OF 12Z NAM/GFS

THE LAST FEW CANADIAN RUNS HAVE BEEN FAST AND WELL OFFSHORE WITH
THE COASTAL LOW. THE 00Z RUN OF THE GFS WAS SOMEWHAT FLAT AND
FARTHER OUT TO SEA RELATIVE TO PRIOR AND MORE RECENT RUNS OF THE
GFS. THE 06Z AND 12Z GFS...AS WELL AS THE 12Z NAM...ARE MORE
REPRESENTATIVE OF THE RELATIVELY TIGHT OPERATIONAL MODEL
CONSENSUS. STILL...THERE IS SOME MEANINGFUL SPREAD IN THE
ENSEMBLES...AND A HANDFUL OF MEMBERS FROM BOTH THE GEFS AND ECMWF
ENSEMBLES PRODUCE A DEEPER LOW CLOSER TO THE COAST...WITH POSSIBLE
IMPLICATIONS FOR THE COASTAL AREAS OF THE MID ATLANTIC AND NEW
ENGLAND.
THIS BEARS WATCHING. GIVEN THE CURRENT SUITE OF
GUIDANCE...A BLEND OF THE 12Z NAM/GFS SHOULD SERVE AS A GOOD
STARTING POINT.

 

 

OPC 48 hr surface - look in-

http://www.opc.ncep.noaa.gov/Atl_tab.shtml

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Check out my blog on this threat at liveweatherblogs.com. Thanks.

 

Is this what you meant to highlight?

 

Saturday January 25th 2014 snowstorm...not a blizzard- just for hurricane.

 

user_thumb.png

Snow time starts after Saturday morning around 3am. Total snow accumulations 8-14 locally 20 inches of heavy wet snow. I'm going on a limb and predicting snow without any data.

 

enjoy the snow cause I want it just it as much as I do.

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Is this what you meant to highlight?

 

Saturday January 25th 2014 snowstorm...not a blizzard- just for hurricane.

 

user_thumb.png

Snow time starts after Saturday morning around 3am. Total snow accumulations 8-14 locally 20 inches of heavy wet snow. I'm going on a limb and predicting snow without any data.

 

enjoy the snow cause I want it just it as much as I do.

 

That's not the one I created.

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Yeah for a solid inch or two..just not ready to jump on board for more yet and hey I'll take whatever

I'd be happy with anything that fully covered the grass given how progressive the pattern is. There just isn't time for anything to amplify enough to deliver more than a couple or few inches. Still will be nice though if it works out.

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