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> Jan 15 Massachusetts Ocean effect snow, Forecast and Obs
stxprowl
post Jan 14 2018, 05:06 PM
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Its only one county under an advisory but I want to see pics of current snowfall from those living there so why not make a thread. laugh.gif

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Solstice
post Jan 14 2018, 05:52 PM
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BOX says it ain't ocean effect! wink.gif

QUOTE
.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
* Ocean Enhanced Snow Near E MA Coast
* Winter Weather Advisory South of Boston

PLEASE NOTE: Because of the possibility of a more widespread
snowfall Tue into Wed (See Long Term below), our snowfall maps
on the web (including probabilities) will focus on that since
it potentially will affect more of SNE. We will post the
expected snowfall map for late tonight into Monday evening on
social media.

Confidence is increasing on receiving accumulating snow near E
MA coast Monday into Monday evening.

This is not a classic "ocean effect" setup but rather "ocean
enhancement" due to NNE flow over coastal front. If you look at
forecast soundings, they certainly are not very impressive with
very shallow mixing layer (less than 2,000 ft) and not much in
way of ocean-induced CAPE. Focus for activity is coastal front
which will move onshore overnight and meander just inland Monday
into Monday evening. It is this boundary which is the key to
the forecast - including temperatures (teens on west side and
20s/lower 30s to east), location of bands of snow showers, and
where they become more persistent (and bring higher snowfall
totals).


--------------------
Monthly Snowfall Totals for 2017-2018 North American Winter:
December 2017 - 12.6" of Snowfall. Maximum Snowdepth of 6.5".
January 2018 - 14.8" of Snowfall. Maximum Snowdepth of 13.0".
February 2018 - 9.1" of Snowfall. 0.15" of Ice. Maximum Snowdepth of 7.3".
March 2018 - 26.3" of Snowfall*. Maximum Snowdepth of 15.9".
April 2018 - 5.7" of Snowfall. Maximum Snowdepth of 5.7" (as of 04/03/2018).

Seasonal Totals for 2017-2018 North American Winter:
68.5" of Snowfall, 0.15" of Ice. Maximum Snowdepth of 15.9" (as of 04/03/2018).
180.3% of average snowfall so far.

* - 03/06/2018 - 03/08/2018 Nor'easter totals estimated at 15.9" based off measurements and local data comparison.
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StL weatherjunki...
post Jan 14 2018, 05:56 PM
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QUOTE(stxprowl @ Jan 14 2018, 05:06 PM) *
Its only one county under an advisory but I want to see pics of current snowfall from those living there so why not make a thread. laugh.gif

Attached Image


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http://www.weather.gov/box/

Neat, wasn't aware this was happening. Thanks for making the thread about it. Satellite image below showing the ocean-effect clouds, not quite as localized as lake effect bands.
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--------------------
All model guidance is just that, guidance. It is the responsibility of the forecaster to take that information, make it better, and to appropriately communicate the forecast to the users.

Fervent supporter of the idea to make GFS output beyond hour 168 proprietary! Anyone wanting to post/share/tweet/etc GFS output beyond day 7 should have 1) a limited set of graphics available with the option to 2) contribute a nominal fee to get a full suite of products while improving future GFS output. #EURObusinessfor-the-win
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stxprowl
post Jan 14 2018, 06:38 PM
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QUOTE(Solstice @ Jan 14 2018, 05:52 PM) *
BOX says it ain't ocean effect! wink.gif

I cant find the definition of Ocean enhancement snow. tongue.gif Therefore Im throwing it out. J/k
https://nsidc.org/cryosphere/snow/science/types.html

I found another forecast map though.

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gulfofslides
post Jan 15 2018, 08:03 AM
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QUOTE(stxprowl @ Jan 14 2018, 07:38 PM) *
I cant find the definition of Ocean enhancement snow. tongue.gif Therefore Im throwing it out. J/k
https://nsidc.org/cryosphere/snow/science/types.html

I found another forecast map though.

Attached Image

1/2" here with very light snow falling wink.gif
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stretchct
post Jan 15 2018, 08:33 AM
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Snowing in Newtown CT. Posting here since Goes shows low level clouds coming in from NE and winds are from NE. Upper clouds moving north.
https://www.star.nesdis.noaa.gov/GOES/GOES1...R&length=24


--------------------
My Wunderground station
weather in my area and winter storm/hurricane model analysis



First STW: May 3rd (no T-storm imby)
First 90+ day: May 3, 92.8
First 80+ day: May 2, 89.2
First 70+ day: Feb 22, 77
Days over 90: 1
To make degree symbol: hold ALT type 0176 on numeric keypad

--------------------------------
Seasonal snow - normal 44"

2017-2018 74.5"
2016-17: 58"
2015-16: 33.5"
2014-2015 57"
2013-2014 58.25"
2012-2013 64.5"
2011-2012 30.5"
2010-2011 79"
2009-2010 49"
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Solstice
post Jan 15 2018, 10:48 AM
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BOX
QUOTE
10 AM Update...

Trends in the forecast so far have been on tracking.
Northeasterly flow has trigger snow flurries all the way back
into Connecticut thanks to some weak upslope from the Central
Hills. You can see the cloud cover from the snow showers on the
latest GOES-16 satellite meso sector 1. Therefore continued to
mention some flurries across RI and Connecticut over the next
several hours.

Otherwise the focus is on the ongoing snow showers late this
morning into the evening. Winds across essex county and even at
BOS has begun to switch to a more northerly direction. This will
push the coastal front and convergence region south of the city
closer to the south shore and into Plymouth county. GHG is still
out of the northeast where as OWD is more northerly. Latest TBOS
trends continue to show reflectivity weakening over the past 30
minutes. This may be in part to the lost of the stout convergence
region. However guidance does indicate that snow showers will
pick back up with adv levels snow during the evening commute. No
changes to the headlines at this time.


This post has been edited by Solstice: Jan 15 2018, 10:49 AM


--------------------
Monthly Snowfall Totals for 2017-2018 North American Winter:
December 2017 - 12.6" of Snowfall. Maximum Snowdepth of 6.5".
January 2018 - 14.8" of Snowfall. Maximum Snowdepth of 13.0".
February 2018 - 9.1" of Snowfall. 0.15" of Ice. Maximum Snowdepth of 7.3".
March 2018 - 26.3" of Snowfall*. Maximum Snowdepth of 15.9".
April 2018 - 5.7" of Snowfall. Maximum Snowdepth of 5.7" (as of 04/03/2018).

Seasonal Totals for 2017-2018 North American Winter:
68.5" of Snowfall, 0.15" of Ice. Maximum Snowdepth of 15.9" (as of 04/03/2018).
180.3% of average snowfall so far.

* - 03/06/2018 - 03/08/2018 Nor'easter totals estimated at 15.9" based off measurements and local data comparison.
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stretchct
post Jan 15 2018, 02:41 PM
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Beautiful morning of skiing at Sundown. Flakes were big, well formed, the kind you see school kids cutting out of paper. Just dusted some surfaces, but very nice mood snow in New Hartford. Still have flurries once in a while here. Not on radar.


--------------------
My Wunderground station
weather in my area and winter storm/hurricane model analysis



First STW: May 3rd (no T-storm imby)
First 90+ day: May 3, 92.8
First 80+ day: May 2, 89.2
First 70+ day: Feb 22, 77
Days over 90: 1
To make degree symbol: hold ALT type 0176 on numeric keypad

--------------------------------
Seasonal snow - normal 44"

2017-2018 74.5"
2016-17: 58"
2015-16: 33.5"
2014-2015 57"
2013-2014 58.25"
2012-2013 64.5"
2011-2012 30.5"
2010-2011 79"
2009-2010 49"
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stxprowl
post Jan 15 2018, 07:47 PM
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Snowing in Provincetown.
https://www.landsendinn.com/around-town/provincetown-webcam/

And Chatham Squire
http://www.thesquire.com/chatham-squire-ma...am/?camstream=2

Master cam list
http://forums.accuweather.com/index.php?showtopic=33343

https://www.wunderground.com/radar/radblast...mp;label=Boston
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