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1/27 Winter Storm - Round 3 - Discussion Thread


Heisy

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  On 1/25/2015 at 6:30 PM, Birds~69 said:

Can your cam zoom out? Looks like from your previous photos it cuts off at 15" although I may have missed some. It's kinda a good problem...

 

Planning for it to get cleared every so often so no matter what, I don't expect it to show the full total. 

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  On 1/25/2015 at 6:18 PM, famartin said:

Euro is pretty similar to last run. I am thinking 8-16 for Trenton/Ewing.

 

forecast makes a ton of sense, need to leave a broad range because of the nature of this storm, although at Trenton you have just a little more wiggle room than us Philly folks

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  On 1/25/2015 at 7:16 PM, Blizzard-on-GFS said:

Do you think I-95 could pull out 15-1 ratios average for this? That would turn my 1.9" at ttn into 28"

 

Wind hurts ratios, breaks up the flakes.  Stick with 12:1 for your max.  It can be as low as 10:1, that's what I saw in Ewing during Boxing Day.

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  On 1/25/2015 at 7:18 PM, famartin said:

Wind hurts ratios, breaks up the flakes. Stick with 12:1 for your max. It can be as low as 10:1, that's what I saw in Ewing during Boxing Day.

Yeah I figured that with wind, however the TTN and philly area are going to have less wind than NYC and points northeast. So hopefully that can help us a bit on the ratios. I'm gonna be hoping for around 13-1.

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  On 1/25/2015 at 7:22 PM, Blizzard-on-GFS said:

Yeah I figured that with wind, however the TTN and philly area are going to have less wind than NYC and points northeast. So hopefully that can help us a bit on the ratios. I'm gonna be hoping for around 13-1.

 

what you are also have to realize is that ratio's are not consistent throughout the whole storm, so during a certain period you  may get 15-1 but during other times ,10-1

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  On 1/25/2015 at 7:07 PM, anthonyweather said:

Where are you getting those WKD?

According to wxbell. The total precips are different.

ABE: 1.2"

PHL: 1.7"

TTN: 1.9"

NYC: 2.4"

Sent from my iPhone

 

From Eurowx.com's data output, not the map.  I don't know anything about wxbell,  Maybe that's why wxbell's snowfall maps are so high.

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  On 1/25/2015 at 7:39 PM, wkd said:

From Eurowx.com's data output, not the map. I don't know anything about wxbell, Maybe that's why wxbell's snowfall maps are so high.

The maps are identical, at least for E.PA.

I'm not super knowing about the SREFS, But mean total snowfall is 15.0" for ABE.

So SREFS doubled the mean from its last run.. How would that signify it moved east?

Sent from my iPhone

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  On 1/25/2015 at 7:40 PM, anthonyweather said:

The maps are identical, at least for E.PA.

I'm not super knowing about the SREFS, But mean total snowfall is 15.0" for ABE.

Sent from my iPhone

 

15Z just came out and its much less.

http://www.spc.noaa.gov/exper/sref/fplumes/index.php?YMD=20150125&RT=15&PRM=Total-SNO&SID=ABE&INC=ALL&NNC=&max=&min=&mZOOM=8&mLAT=40.149229006911625&mLON=-74.696461328125&mTYP=roadmap

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  On 1/25/2015 at 6:55 PM, famartin said:

Planning for it to get cleared every so often so no matter what, I don't expect it to show the full total. 

 

That would work. Although the wind will create havoc....not sure how anyone can get honest total w/the pending conditions? Should be cool to follow the magical ruler...

 

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  On 1/25/2015 at 7:43 PM, famartin said:

Correct (especially in the western part), but still have 1" contour to extreme SEPA and most of NJ. It is still more than 3Z by a lot.

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  On 1/25/2015 at 7:48 PM, mattinpa said:

I would go with the Euro. It has been consistent while the other models all waffle. Plus it is great in this range.

 

The SREF is still a 13" mean for PNE, and a tight cluster from 10-15".  It had more extreme outliers before with a mean of 16", so still not a huge downgrade by any means. (talking purely about qpf, it's a big storm, it's the track and cutoff that is uncertain, and when it comes down to it, everyone will just say nowcast anyway).

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  On 1/25/2015 at 9:17 PM, GD0815 said:

wow they are definitely buying the Euro solution, i hope they are right, because I don't think there is another model out there right now giving us anywhere close to those numbers

I'm just waiting for the winter weather advisory for lehigh for 3-5" lol.

Sent from my iPhone using Tapatalk

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