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NYC/PHL Jan 18-19 Potential Threat Thread


am19psu

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A bigger storm means a warmer solution with heavy rain. If you want colder and snow potentials, you don't want a bigger storm this time.

I do not necessarily think a bigger storm would necessarily mean a warmer storm either. i think it would all depend on how wrapped up and how west it actually gets. At this point i think its too far to the west ,,,,its the western most extreme

For example...

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BTW, anybody notice the 18Z NAM. It takes our southern stream low all the way down to Tamap, FL. At the same time, a low is popping off the NC coast.

i see, but it also slides the high northeast and the northern stream low is to far. So you get southerly winds and the bl starts to warm fast. You need no phasing at that northern stream to track further south.

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i see, but it also slides the high northeast and the northern stream low is to far. So you get southerly winds and the bl starts to warm fast. You need no phasing at that northern stream to track further south.

What about the second high thats located more or less right over our area at that time?

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thats retreating...The northern stream system is already to far north, you can see the southerly push on that map with the blue and red lines.

Any chance we can get more energy from the northern stream to drop in and phase with the system as it moves through the gulf and end up with a miller A?

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Any chance we can get more energy from the northern stream to drop in and phase with the system as it moves through the gulf and end up with a miller A?

i guess there's always a chance. You just need the northern stream low to drop further south if you want a snowier look. If you just want to hold on to your snow pack then you dont want a phase.

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Hi 1234

No joke...check out www.wxsim.com for information. But real quick it is a customized local forecasting model (in your backyard forecast) that uses the GFS/NAM and lots of complicated advection routines...using both your own weather station and obs upwind etc. All of this produces a very customized local forecast for your slice of the world.

Paul

www.chescowx.com

I have been reading these forecasts of yours for quite some time. Are they for real, or is this some kind of a joke? Do you really have your own forecast model?

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This run gives NYC a couple of inches before the changeover. Much colder.

GFS looks much more interesting for NYC, especially northwest burbs which may face quite a frozen precip event. The nam at 84 hours looked like it was setting up for a similar solution also, although I recognize it's the nam at 84 hours.

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Yep, it looks icy. Surface temps are below 32 while 850's are above 0c.

Looks as if everyone starts with 2-4" of snow and then we deal with a possibility for freezing rain in the suburbs. Definitely going to be a nasty commute up this way if the GFS verifies, and probably will cause more school closings/delays as has been the routine lately with the winter weather.

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Looks as if everyone starts with 2-4" of snow and then we deal with a possibility for freezing rain in the suburbs. Definitely going to be a nasty commute up this way if the GFS verifies, and probably will cause more school closings/delays as has been the routine lately with the winter weather.

Snow and then freezing rain on top. not a good combo

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Interesting, thank you.

Hi 1234

No joke...check out www.wxsim.com for information. But real quick it is a customized local forecasting model (in your backyard forecast) that uses the GFS/NAM and lots of complicated advection routines...using both your own weather station and obs upwind etc. All of this produces a very customized local forecast for your slice of the world.

Paul

www.chescowx.com

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