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March 13 - 15 Major Winter Storm Potential


NEG NAO

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Now the GFS is the middle ground after being the more west and the Euro east after being the middle ground, NAM most west I presume on this run? And I mean OP runs. The EPS definitely was a good sign on the OP maybe being an extreme eastern scenario which still brings snows to many areas, unfortunately not for NW areas as before but more changes yet to come. 

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Blizzard Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service New York NY
338 PM EST Sat Mar 11 2017

...Potential for a Major Winter Storm Monday night into
Wednesday...

CTZ007>012-NYZ071>075-078>081-176>179-120900-
/O.NEW.KOKX.BZ.A.0001.170314T0400Z-170315T0400Z/
Northern Middlesex-Northern New London-Southern Fairfield-
Southern New Haven-Southern Middlesex-Southern New London-
Southern Westchester-New York (Manhattan)-Bronx-
Richmond (Staten Island)-Kings (Brooklyn)-Northwestern Suffolk-
Northeastern Suffolk-Southwestern Suffolk-Southeastern Suffolk-
Northern Queens-Northern Nassau-Southern Queens-Southern Nassau-
338 PM EST Sat Mar 11 2017

...BLIZZARD WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY EVENING...

The National Weather Service in Upton has issued a Blizzard
Watch, which is in effect from late Monday night through Tuesday
evening.

* Locations...New York City, Long Island, Southern Westchester,
  Southern Fairfield, Southern New Haven, Middlesex, and New
  London counties.

* Hazard Types...Snow, and strong and gusty winds.

* Snow Accumulations...12 to 18 inches.

* Timing...Late Monday night through Tuesday evening.

* Impacts...Hazardous travel and potential for power outages due
  to moderate to heavy snow and gusty winds.

* Winds...Northeast 20 to 30 mph with gusts 40 to 50 mph.

* Temperatures...In the upper 20s.

* Visibilities...One quarter mile or less at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Watch means there is a potential for falling and/or
blowing snow with strong winds and extremely poor visibilities.
This can lead to whiteout conditions and make travel very
dangerous.

&&

$$


 

 

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1 minute ago, danstorm said:

Crazy for the NWS to put out such high numbers this far in advance 

Yeah I really think they'll have to lower those numbers. I'm not sure we'll have enough of a block should the storm phase late. 

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Just now, WaPo said:

Yeah I really think they'll have to lower those numbers. I'm not sure we'll have enough of a block should the storm phase late. 

I'm not saying they'll be wrong, I've just never seen a forecast of 12-18 when 60-72 hours out... Usually they say "significant", "6+", etc... 

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3 minutes ago, danstorm said:

Crazy for the NWS to put out such high numbers this far in advance 

Yeah a little shocked. That's aggressive. Why not wait until at least after 0z? It's not like people still wouldn't have plenty of time to get ready. The hype machine will be in full effect now. 

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3 minutes ago, danstorm said:

I'm not saying they'll be wrong, I've just never seen a forecast of 12-18 when 60-72 hours out... Usually they say "significant", "6+", etc... 

Dan, how far in advance did they issue those high forecast totals for January 2015? And what were the totals they forecast for that storm? I remember they went conservative after that storm lol.

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5 minutes ago, danstorm said:

I'm not saying they'll be wrong, I've just never seen a forecast of 12-18 when 60-72 hours out... Usually they say "significant", "6+", etc... 

I am surprised by their high numbers so early, and honestly that a watch was issued already as well. I figured they would have done it in the morning and at least have gotten through the 00z model runs before issuance.

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6 minutes ago, tdp146 said:

Yeah a little shocked. That's aggressive. Why not wait until at least after 0z? It's not like people still wouldn't have plenty of time to get ready. The hype machine will be in full effect now. 

Actually it should have been after the 12z runs tomorrow which is the first set of runs within 48 hrs of the start of the event

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