Jump to content
  • Member Statistics

    17,607
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Christmas Grinch Storm Potential


Chicago Storm

Recommended Posts

  • Replies 982
  • Created
  • Last Reply

 

 

 

You could be right but I think it's premature to say that.  There's a recent example with the deep storm late last month which took until 48-72 hours out to resolve the snow production.  Models/model runs had been indicating little/no snow until the phasing details were better resolved.  Still plenty of time for a more favorable trend (or a worse one lol) 

 

yeah, this is worth watching but widespread heavy snow looks like a long shot at the moment

Link to comment
Share on other sites

Straight from God's mouth.

 

 

 

haha, i'm just addressing the current runs verbatim. the storm drops tons of snow, just not where anyone lives. i don't want the it's weird how there's no snow meme to take off.

 

on the plus side, it's not hard to see how minor phase differences between 140-160 hours could change things.

Link to comment
Share on other sites

morph chatta via WPC....

 

 

EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1100 AM EST WED DEC 17 2014

VALID 12Z SAT DEC 20 2014 - 12Z WED DEC 24 2014

...SOAKING RAIN FOR PORTIONS OF WASHINGTON/OREGON STARTING LATE
THIS WEEKEND...

..OVERVIEW...
ACTIVE SPLIT-FLOW PATTERN OVER THE CONUS WILL TRANSITION TO A MORE
AMPLIFIED RIDGE/TROUGH WITH A NEGATIVELY-TILTED TROUGH SETTING UP
OVER THE GREAT LAKES AND MID-ATLANTIC/NORTHEAST REGION(S) AROUND
THE CHRISTMAS EVE TIME FRAME.

A 'BUCKLING' IN THE PERSISTENTLY-STRONG WESTERLY PACIFIC JET WILL
LIKELY OCCUR DURING WEEKEND---AND BECOME THE IMPETUS FOR
CHANGE---AMPLIFYING THE PATTERN DOWNSTREAM OVER THE LOWER 48. THE
17/00Z GEFS/ECENS MEANS HAVE WAVERED ON THE SMALLER-SCALE DETAILS
SURROUNDING THE PATTERN DOWNSTREAM OF THE ROCKIES...BUT GENERALLY
AGREE THAT A 500MB WAVE FORMS INVOF THE CENTRAL MIDWEST---WITH
PACIFIC JET SUPPORT CARVING OUT THE 200MB-500MB TROUGH TOWARDS THE
END OF THIS MEDIUM RANGE PERIOD.

...UNCERTAINTY ASSESSMENT...
AFOREMENTIONED 'BUCKLING' OF THE PACIFIC JET ---IN THE OVERVIEW---
ALONG THE WEST COAST ON SAT/SUN APPEARED TO BE THE LEADING EDGE OF
A BROAD WARM FRONT THAT SURGES QUICKLY THROUGH THE NORTHERN
CONTINENTAL DIVIDE AND NORTHERN HIGH PLAINS. ON MONDAY...THE
FAST-MOVING NORTHWEST FLOW---NOSE OF THIS PACIFIC JET
CONFIGURATION ALOFT--SUPPORTS THE DEEPENING OF LEE SIDE
CYCLOGENESIS OVER SOUTHEASTERN ALBERTA AND THE BIRTH OF A
WELL-DEFINED SURFACE CYCLONE---MIGRATING ACROSS THE UPPER HALF OF
THE MISSOURI VALLEY EARLY IN THE PERIOD. ITS 'MORPHOLOGY' AROUND
DAY 6...IN THE MIDWEST---APPEARS TO BE A FUNCTION OF ITS DEPTH AND
FORWARD MOTION IN RELATIONSHIP TO THE UPPER-LEVEL JET. ONE OF THE
SMALLER-SCALE DETAILS IS---CAN THE SURFACE CYCLONE DRAW UPON
ENOUGH COLDER...CANADIAN AIR AND PULL THAT COLDER AIRMASS
SOUTHEASTWARD FASTER ENOUGH---TO INTENSIFY AND AMPLIFY---THE
ENTIRE PATTERN IN THE NORTHEAST QUARTER OF THE NATION---IN TIME
FOR THE PEAK CHRISTMAS TRAVEL 'WINDOW'. THE SHORT ANSWER IS---YES.
DO THE 17/00Z DETERMINISTIC SOLUTIONS HAVE ALL THE 'MORPHOLOGY'
DETAILS "DOWN PAT"---THE ANSWER IS NO. THE 'NO' PART OF THE ANSWER
IS ON THE WINTER WEATHER SIDE--AND WHO MAY/MAY NOT SEE A 'WHITE
CHRISTMAS' MORNING.


WHAT CAN BE GLEANED FROM THE 17/00Z GUIDANCE IS...THERE WILL BE A
DYNAMIC UPPER-LEVEL TROUGH EMERGING AND THE THREAT OF ORGANIZED
SYNOPTIC-SCALE PRECIPITATION ASSOCIATED WITH THE SURFACE
CYCLONE--WITH A DISTINCT WINTER SIDE---ALONG ITS NORTHERN
PERIPHERY---AND WET SIDE AHEAD OF THE DEEPER---COLD AIRMASS THAT
IS RAIN.

 

which adds to the chat of not much snow on the typical west side...but still plenty on the north side as alek alludes too....all going verbatim for now

Link to comment
Share on other sites

Don't know about you guys but I'm starting to get tired of all these media/twitter catch phrases people are latching on to recently, including polar vortex and now SantaBomb.

 

Oh well. People are stupid and it's only going to get worse 

 

I went after someone last night on there for trying to compare it to the 78 blizzard and trying to get #78redux trending. 

Link to comment
Share on other sites

Obviously there's multi-model support for a deep low as of now but the ECMWF solution is particularly impressive with that track/strength.  All-time pressure records would largely be safe thanks to the January 1978 storm but there aren't many storms that have done what the 12z Euro suggests. 

Link to comment
Share on other sites

Dang....

 

certainly looks like a high impact event in the making...

 

if that means I sneeze off a dusting or have to shovel a few inches who knows...but certainly looks like trouble for air travel around the holiday if nothing else

 

The 12z Euro EPS control run is actually the most generous yet for us in terms of snowfall. 3-6" here, a larger 6-9" swath from western KY up through sw MI.

 

LAF/Indy ends up the biggest winner between this system and the one right after Xmas. Well really the entire state does great between both of them. 

Link to comment
Share on other sites

Archived

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

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...