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December 10th/11th winter storm threat


jamesnichols1989

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The lift is within the 700-500 mb layer. It is very sloped. 500mb vv is just fine. If you recall that event back in Feb I believe, there was a ribbon of H5 VVs over the canal that smoked messenger. 700mb VVs in that were well south. So there is that, but again...it's all dependent on how this sets up.

 

Great points, just looked and you are correct.  4km NAM is a good hit still

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I'll take it...that's good for 2-4 at least

 

Somewhere James is dancing around his living room to this song.

 

I've got to tell you I'm really excited too, pre Xmas snow is my favorite by far.  GFS may have ingested some of Mayor Ford's second hand crack but overall I like the theme of the NCEP stuff and the fact that guidance is really playing catchup with the s/w coming across.  That should help us.

http://www.youtube.com/watch?v=h-LbvFckptY

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I lost nothing to "micro-snowpack" lets say there is snow on the ground. Being atop a hill is not representative of surrounding environ.

 

Stony Brook COMAP (MM5) changed the website a little:

 

   http://dendrite.somas.stonybrook.edu/LI_WRF/index.html

 

MM5 model on occasion nails these setups. Mostly like a broken clock.

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The lift is within the 700-500 mb layer. It is very sloped. 500mb vv is just fine. If you recall that event back in Feb I believe, there was a ribbon of H5 VVs over the canal that smoked messenger. 700mb VVs in that were well south. So there is that, but again...it's all dependent on how this sets up.

Whoomp there it is.

 

post-3-0-93553600-1386647406_thumb.png

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Nobody posted this that I saw, strong words from BOX:

SNOW WILL BEGIN TO DEVELOP TUESDAY MORNING...INTENSIFYING AROUND

THE LATE-MORNING INTO THE MIDDAY HOURS BEFORE TAPERING OFF INTO

EVENING. WIDESPREAD 1 TO 3 INCHES OF SNOW IS ANTICIPATED ALONG

AND SOUTH OF THE MASSACHUSETTS TURNPIKE...BUT LOCALLY HIGHER

AMOUNTS OF 4 TO 6 INCHES DUE TO SNOW-BANDING WILL BE POSSIBLE IN

PROXIMITY TO THE SOUTH-COAST INCLUDING CAPE COD AND THE ISLANDS.

WINTER WEATHER ADVISORIES MAY NEED TO BE CONSIDERED.

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Nobody posted this that I saw, strong words from BOX:

SNOW WILL BEGIN TO DEVELOP TUESDAY MORNING...INTENSIFYING AROUND

THE LATE-MORNING INTO THE MIDDAY HOURS BEFORE TAPERING OFF INTO

EVENING. WIDESPREAD 1 TO 3 INCHES OF SNOW IS ANTICIPATED ALONG

AND SOUTH OF THE MASSACHUSETTS TURNPIKE...BUT LOCALLY HIGHER

AMOUNTS OF 4 TO 6 INCHES DUE TO SNOW-BANDING WILL BE POSSIBLE IN

PROXIMITY TO THE SOUTH-COAST INCLUDING CAPE COD AND THE ISLANDS.

WINTER WEATHER ADVISORIES MAY NEED TO BE CONSIDERED.

May be considered? LOL .... Isn't the 1-3 enough to issue one anyway

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Not sure what to make of this. SV has a snow algorithm which isn't not at all weenie. The gfs tonight snows a stripe of 4 inches along the pike from Boston heading the length of the pike and encompassing extreme northern ct east to west down to the canal. 2 inches everywhere else. 6 inches NYC to Philly including northern half of nj and the eastern 1/3 of PA down to whqt appears to be close to DC/BWI. Gonna be fun tomorrow.

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