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1/21 clipper/coastal


Zelocita Weather

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I fully expect the NAM at some point tomorrow to come up with one of its way over the top solutions as it also moves way northwest - ALL ABOARD !!!

 

Well the 18Z NAM run for KACY was pretty close to "over the top" spitting out 16.6" with ratios as per cobb bufkit output...

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Ukie actually isn't very excited..but the trend on almost every model is really exciting tonight. Not only are we seeing improved upper levels but now the models are picking up on the fact that the changes aloft and in the mid levels will allow for more precipitation expansion on the NW side and potential for banding near the coast. This all goes back to the improved jet structure and changes aloft. 

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Ukie actually isn't very excited..but the trend on almost every model is really exciting tonight. Not only are we seeing improved upper levels but now the models are picking up on the fact that the changes aloft and in the mid levels will allow for more precipitation expansion on the NW side and potential for banding near the coast. This all goes back to the improved jet structure and changes aloft. 

 

Yeah, as long as the UKMET isn't too lax about this storm, everything is fine. 

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The higher resolution models are eating this one up. Might be something to keep an eye on with the 21z SREF when it comes out to see if this amped trend continues. Unfortunately, I'm back in PA so if this does turn into something big...

 

Are you going to be at NJ on time for the storm? 

Nope. College just started back up, so I'm here most likely for the rest of the winter.

Does give me a chance to head to the weather center tomorrow and really do some work if this continues to trend favorably aloft. Would love to see you guys pull this one off.

Sent from my SCH-I545 using Tapatalk

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MODEL DIAGNOSTIC DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1105 PM EST SUN JAN 19 2014

VALID JAN 20/0000 UTC THRU JAN 23/1200 UTC

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


00Z NAM/GFS EVALUATION WITH PRELIMINARY MODEL PREFERENCES
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NAM/GFS INITIALIZATION ERRORS DO NOT SEEM TO DEGRADE THEIR SHORT
RANGE FORECASTS.

 

TROUGH AMPLIFICATION ON TUESDAY
LOW MOVING OUT OF THE CAROLINAS TUESDAY
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PREFERENCE: GENERAL MODEL COMPROMISE
CONFIDENCE: AVERAGE

THE GUIDANCE HAS BEEN TRENDING STRONGER WITH THIS SYSTEM AS A
SHORTWAVE PIVOTS AROUND THE SOUTHERN PERIPHERY OF A LARGE GYRE IN
EASTERN CANADA -- PART OF THE POLAR VORTEX. IT IS ALSO QUITE
AGREEABLE BOTH ALOFT AND AT THE SURFACE,
THOUGH THE 00Z GFS IS ONE
OF THE STRONGEST SOLUTIONS. A CHECK OF THE VERTICAL VELOCITY
FIELDS DOES NOT INDICATE THE PRESENCE OF CONVECTIVE FEEDBACK IN
THE GFS UNTIL THE SYSTEM MOVES BY NOVA SCOTIA. A GENERAL MODEL
COMPROMISE IS PREFERRED TO DEAL WITH LINGERING DETAIL ISSUES WITH
AVERAGE CONFIDENCE CONSIDERING THE SYSTEM'S PROGRESSIVE NATURE.


www.wpc.ncep.noaa.gov/html/model2.shtml...

ROTH

 

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

 

A_24hrbw_zps659ac7be.gif

 

latest from the OPC

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

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