Delaware & Lehigh Valley Weather SNJ DE PA
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12z Runs Thread

Good Early Afternoon All,

 

Blog In Motion:

 

First some Eye Candy: The DGEX Model ( I don't think this will happen but you never know)

 

The Orange area down there in Southeastern Pa Chester, Delware, Phiadelphia, Montgomery, and Bucks is 10"+

post-205-13587715907

 

I will be updating this throughout the day again as I am off from school but still have to get to the Gym since it is my day to go.

 

12z GFS Just In:

 

Shows a solid 6" for the 5 county area.>>>> 12z GFS specifically shows 4-8" five county area Wilmington Delware to the Lehigh Valley... 2-4" every where else along the I-295 Corridor ... South Jersey and Central and Southern Delware 1-3" due to mixing issues and rain with a wind coming in off the Atlantic.

 

Now for our friends in Southern Delaware County, Chester County and near the Delaware River the Rain / Snow Line is very close by... Looks like for our friends along the I-295 corridor opposite side of Commodore Barry Bridge... a swath of 2-4" before a changeover takes place this would also perhaps also be the case in Wilmington.

 

Points north and west of the Delaware River this is a snowstorm with few mixing problems if any at all noted.

 

We are in a much better place from a model stand point than we were yesterday.

 

While the NAO wants to be neutral or positive the Polar Vortex does want to keep this storm moving more towards the east then turn north say towards Cleveland and Syracuse which would be a snow lovers disaster.

 

Watch the trends today but the Euro and GFS do look similar again and basically the I-295 Corridor on North and West and the Mason Dixon Line PA Maryland line snow looks likely again.

 

At this time I would say a 3-6" event with the possibility of a 4-8" event is on tap for Friday afternoon and Night January 25th.

 

At the current timing the heaviest part of the storm with 1" snowfall rates per hour would most likely be between 4-8PM... once again it is fast mover so huge snowfall totals of say 12+ are not expected at this time unless the NAO were to go negative of course which does not appear likely.

The Canadian Model 12z:

I nw g1 EST 2013012112 096

 Hour 100:


After this the rain snow line passes the Mason Dixon Line but I still think the Candaian is too far north with that line.

I nw g1 EST 2013012112 100

You can post your thoughts below...

 

P.S. These pop-up ads really need to go and a few of them are inappropriate for younger ears it needs to be cleaned up like fast.

 

Thanks for Reading

WildWeather

Kevin Reilly

Liveweatherblogs.com

Blog started by Kevin Reilly , on 148 days ago
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John Manetta
There is continuity run after run on the models for days, Watch for them to to possibly go to a solution that is terrible and then go back to a great solution, they tend to do that. However it is looking good for an HSE for southeast pa. 10 degrees the morning the event and ~10 to 15 Fin the 850 and other lower upper levels clearly means very high ratios so the next day or two will tell I will issue a forecast tomorrow.
148 days ago
 
Joe
Dew point only 14 degrees so this burst of snow may have tough time reaching the ground ?
148 days ago
 
Scootch
Just use a browser with an ad blocker. I don't get any ads or videos. It's wonderful.
148 days ago
 
dan
Gonna have to agree with you Kevin about the videos and pop ups. This is a great site, but i visit it so infrequently now due to all the non-weather related BS that pops up, videos that start at every new window, and, is it just me, or is this site just the slowest website on earth to navigate?
148 days ago
 
Kevin Reilly
18z GFS is an off run I have not seen it but it falls in line with the other models so I am not concerned at this time.. bring on the 0z GFS and by the way a heavier band of snow showers will rotate through here in the next 35minutes or so in Delco... get reading for a brief burst.
148 days ago
 
Joe lasala
18z GFS is still snow Philly north I think
148 days ago
 
Joe lasala
Marcus it looks like snow on both models
148 days ago
 
Marcus wild
I dunno if it's a gfs vs euro battle. The models aren't that far off it's not really any model vs any model in my opinion. The solutions aren't that far off. The fact is most of not all models show a significant snowfall for Philly Friday, the first in years.
148 days ago
 
Joe lasala
GFS is still further north than the euro still snow I think

GFS vs EURO
148 days ago
 
tim riggins
18z GFS looks like with ratios 8-12 for SE PA
148 days ago
 
Jbat
18Z is warmer than the Euro but definitely wetter. Coastal Jersey won't like this run. 850 line gets right into Philly near the end of the storm but most qpf falls out ahead of it when its cold. I am about to leave from work so I can't look at the soundings but the snowmap shows maybe 8-10 inches in SEPA. Looks like Delco/Chesco get the most but everyone does good. Higher qpf always falls in the battle zones.
148 days ago
 
tim riggins
I know its the 18z gfs, but it is a HUGE HIT for philly
148 days ago
 
Freeze-mizer
Given the current teleconnections the path, qpf and placement of cold air will be tough to lock down. Between now and Wed runs I expect same of what I've seen from models regarding agreement/disagreement. My guess is this will be a classic nowcasting event in the end.
148 days ago
 
Jbat
yep, my bad. I changed it.
148 days ago
 
SgtSnow
Instead don't you mean PHL south ice and rain
148 days ago
 
Jbat
There's actually more of a path of uncertainty since its really an East/West type system. It can track from well south of our area which keeps everyone cold with high ratio snows but less qpf to basically on top of us which could bring in more qpf but will change everyone from PHL south to ice or rain. The outcome could be anywhere in that path.
148 days ago
 
Chris Long
Regarding the DGEX model, it's showing around 10" for bucks county. Given that, what are the actual chances that we even see snow? I'm not asking for an amount, not gonna whine like I've seen some do over lack of snow (unforuantely, I'm starting to get used to it). Just a curious snow lover who is tired of watching NYC/Boston area get snow while we get flurries/mix/sleet/nothing.

I'm seeing mentions of different tracks, are they different in where the storm is going, or what it's going to produce?
148 days ago
 
Joe lasala
Thanks jbat , there are 2 tracks ?? I thought there was only the southern track ... What are the 2 tracks ??
148 days ago
 
Jbat
Joe, its basically the Lehigh Valley.

NYC seems to be a safe bet for a moderate 4-8. They make out similarly with both likely tracks.

148 days ago
 
Joe lasala
Jbat where's wennerville ?? How's NYC looking ??
148 days ago
 


 

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