OT: Tracking Winter Storm Fern 1/25-26

knight82

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Nov 4, 2002
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It's Saturday morning and the Accuweather website still has not budged from their prediction of 4-8 inches for Bloomfield ( and NYC)
 
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Postman_1

Heisman
Mar 12, 2017
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With all these models being not really in line with each other what is considered the overall best model for winter weather?
 

bac2therac

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Jul 30, 2001
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2nd call

I still think 7-11 is a good call for Union Somerset Mercer Burlington Middlesex. Chances for more north of 78.

10-15 northern nj north of Newark nw counties

6-9 Monmouth/Ocean

3-6 southern Atlantic

Hillsborough Deli: 8
NYC: 8
Newark: 9
Philly: 8

Still could tweak this before final call tonight
 

bac2therac

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The weather thread is always funny because posters project whatever is happening near them is happening all over the state. I mean the difference live north of 78 vs South could mean few inches of snow.
Maybe as much as foot difference
 

bac2therac

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It's Saturday morning and the Accuweather website still has not budged from their prediction of 4-8 inches for Bloomfield ( and NYC)
It can happen. Yet its true its on the low side especially for Bloomfield. Everyone is getting the initial thump of snow. The intensity could bring 1-2 inches an hour. How long that lasts before mixing or if we get that intensity can cause wild swings. There are models differences. We will get some more short term modelling today that could give us better confidence
 

bac2therac

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Jul 30, 2001
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With all these models being not really in line with each other what is considered the overall best model for winter weather?
The Euro used to be king but has lost its luster. The AI versions of GFS and Euro have been doing well of late. The NAM which is being retired scores high marks on fleshing out warm air aloft like in this storm. They all seem to have their strengths and minuses but none are perfect. See last week where on Friday only the GFS had snow for last Sundays storm
 

bac2therac

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Jul 30, 2001
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zarrow update...sliced an inch off cj

 

bac2therac

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the NAM was really bad for snow lovers....quicker changeover to sleet and totals cut waaaaaaaaaaay back

start time 3-5 AM
thump for 6 hours
mixing entering central jersey by 1pm
sleet goes all the way up to NJ/NY border
verbatim its only 4-6 inches
6-9 hours of mix that could give 1-2 inches of sleet
 

bac2therac

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Jul 30, 2001
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the RRFS model which is replacing the NAM

snow arriving 3-4 AM
thump for 6-8 hours
has sleet entering central jersey by 2pm
sleet goes all the way up to NJ/NY border
verbatim is 4-8 inches kuchera
 

bac2therac

Hall of Famer
Jul 30, 2001
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lol taken from the weenie board

The NAM is the Aaron Rodgers of models

Clearly ready for the exit
Was always flawed but racked up some big wins in its career
Problematic in ways that distract from its strengths (but fans like it for being "contrarian")
People vigorously rooting for it to lose
Still capable of some key plays that make it impossible to write off
 
Jan 12, 2015
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2nd call

I still think 7-11 is a good call for Union Somerset Mercer Burlington Middlesex. Chances for more north of 78.

10-15 northern nj north of Newark nw counties

6-9 Monmouth/Ocean

3-6 southern Atlantic

Hillsborough Deli: 8
NYC: 8
Newark: 9
Philly: 8

Still could tweak this before final call tonight
Hillsborough Deli: 8.
That's the minimum, as I remember it.
 
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bac2therac

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Jul 30, 2001
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GFS snow starting by 3am
thump for 6-8 hours
sleet entering central jersey by 3-4 pm
sleet all the way up to NJ/NY border by 7pm
verbatim 4-8 inches central jersey and 8-12 north jersey , 3-6 south jersey

 

bac2therac

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Jul 30, 2001
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the HRRR is a very short term model that runs every 18 hours except every 6 hours does a 48 hour run the last of which was the 12z and that is a bit out of its range currently. It usually is a bit boisterous on snow totals so its no surprise its the outlier snowiest model right now in recent runs showing 8-12 from south jersey to trenton and 12-16 north of that. We shall watch these runs all day to see if it cuts back
 
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Retired711

Heisman
Nov 20, 2001
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'The NWS's 5 a.m. briefing continues to back off on snow amounts.The 12-18 inch area in New Jersey has shrunk; it's now confined to (roughly) Morristown north. The 8-12 inch area covers most of the rest of New Jersey, but it includes only the portions of South Jersey in the Philly metro area as well as the areas in South Jersey right by the Delaware. The rest of South Jersey (including the shore south of about Tom's River) is now forecast to get 6-8 inches. At this point, there's roughly a 50-50 chance of 8 or more inches of snow, a one-in five chance of 12 or more inches of snow, in Philadelphia.

The chances of ice continue to be high according to the NWS. To quote: "There remains a threat for notable ice accumulations ranging from 0.1” to 0.3" across the I-95 corridor, southern New Jersey, Eastern Shore of Maryland, and central/northern Delaware. The combination of heavy snofollowed by sleet/freezing rain and breezy northeast winds gusting 20-30 mph could result in some isolatedm instances of downed trees and power lines, and power outages." The prime area for ice accumulations takes in Gloucester county south along the Delaware.

The NWS continues to forecast bitter cold for the days after the storm.

IMHO, snow-haters should not like this forecast; ice is more dangerous and disruptive than snow.

https://www.weather.gov/media/phi/current_briefing.pdf
 
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Knight Shift

Heisman
May 19, 2011
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'The NWS's 5 a.m. briefing continues to back off on snow amounts.The 12-18 inch area in New Jersey has shrunk; it's now confined to (roughly) Morristown north. The 8-12 inch area covers most of the rest of New Jersey, but it includes only the portions of South Jersey in the Philly metro area as well as the areas in South Jersey right by the Delaware. The rest of South Jersey (including the shore south of about Tom's River) is now forecast to get 6-8 inches. At this point, there's roughly a 50-50 chance of 8 or more inches of snow, a one-in five chance of 12 or more inches of snow, in Philadelphia.

The chances of ice continue to be high according to the NWS. To quote: "There remains a threat for notable ice accumulations ranging from 0.1” to 0.3" across the I-95 corridor, southern New Jersey, Eastern Shore of Maryland, and central/northern Delaware. The combination of heavy snofollowed by sleet/freezing rain and breezy northeast winds gusting 20-30 mph could result in some isolatedm instances of downed trees and power lines, and power outages." The prime area for ice accumulations takes in Gloucester county south along the Delaware.

The NWS continues to forecast bitter cold for the days after the storm.

IMHO, snow-haters should not like this forecast; ice is more dangerous and disruptive than snow.

https://www.weather.gov/media/phi/current_briefing.pdf
That 8-12 for Toms RIver is a fireable offense.
 

bac2therac

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Ukie is now the coldest and snowiest model

8-11 inches statewide and sleet comes in very late


 
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Knight Shift

Heisman
May 19, 2011
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we shall see when the dust settles if it is, but its a very aggressive forecast

not that I think they will be accountable either way. Numbers of course will defend them as if they are his relatives
I think he favors the lower totals in central NJ and along the shore.

Seems that reading the couple of amateur weenies I follow (Mostwill and Tomer), nobody can accurately make a call on the dry slot and what you called warm nose (warm air advection).
 

bac2therac

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Jul 30, 2001
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I think he favors the lower totals in central NJ and along the shore.

Seems that reading the couple of amateur weenies I follow (Mostwill and Tomer), nobody can accurately make a call on the dry slot and what you called warm nose (warm air advection).
thats true...still uncertainty and not sure any modelling will figure that out
 

djrc89

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Aug 4, 2001
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Bac
Monmouth beach. I’m expecting about 6. Once the mixing starts, do we think that’s it for accumulation? I know it’s supposed to get bitter cold but no switch back ?
 

bac2therac

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Bac
Monmouth beach. I’m expecting about 6. Once the mixing starts, do we think that’s it for accumulation? I know it’s supposed to get bitter cold but no switch back ?
yeah once you flip you pretty much stay that way...so you will get sleet accumulations which could be an inch or a bit above
 

Retired711

Heisman
Nov 20, 2001
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yeah once you flip you pretty much stay that way...so you will get sleet accumulations which could be an inch or a bit above
FWIW, the forecast for my zip code in Cherry Hill anticipates a change back to snow on Monday morning -- but only less than half an inch of additional accumulation. Previously, this change back was supposed to happen about 4 a.m.
 

bac2therac

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Jul 30, 2001
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FWIW, the forecast for my zip code in Cherry Hill anticipates a change back to snow on Monday morning -- but only less than half an inch of additional accumulation. Previously, this change back was supposed to happen about 4 a.m.
Yeah any snizzle after midnight and monday morning will be total nuisance type stuff
 
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