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December Model Discussion


UlsterCountySnowZ

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The only thing we can really take right now is the earlier cold push is becoming likely to verify.  As for the snow on Christmas I still would want to see another 48 hours of this setup pushing further east because the last several years the tendency has been these waves and the subsequent fronts they ride on end up west of where they are projected 4-6 days out 

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2 minutes ago, Snow88 said:

Dec 2000 was good

12 inches here

Remember it was supposed to change to rain and never did.  It was sort of like a super version of the Dec 9 snowstorm we just had, with rain in eastern Suffolk and eastern New England.  Low crossed over central Suffolk and yet it was snow just west of that track, so we stayed all snow.

Super Clipper turned into Coastal, I think?

 

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0z GFS looks really good in the medium to long range.

Front crosses early on Christmas with a wave offshore just missing (probably the same storm the Euro is hinting at), then an overrunning event moves in from the Southern Plains with a 1040mb high to the north.

Gets extremely cold before New Year's, too, with -25C 850s in the region. Should see readings below 0F in the colder areas of suburbia. 

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EPS is colder than the op for Xmas storm

The op also shifted east and it wouldn't take much for everyone to be in play. Right now , inland areas have the best chance of accumulating snow.

The Euro also shows a big snowstorm at the end of the run just like the other models show.

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OKX's take on Sun-Mon from their morning AFD:

Global models still disagree with the storm track for Sunday night
into Monday morning, with GFS taking low pressure from the Mid-
Atlantic to fairly well SE of the 40N/70W benchmark. The GFS
ensemble mean however is approx 50 miles SE of the benchmark, so it
wouldn`t be surprising to see the deterministic GFS eventually trend
back towards the benchmark in future model runs. ECMWF, its ensemble
mean, and GEM track the storm within the benchmark. Will lean
towards this solution, but not as NW/warm. Still, rain would be
likely for coastal areas, and a wintry mix would occur inland with
the potential for an all-snow event for the far NW suburbs. PCPN
would taper off Monday morning with isolated/scattered rain and snow
showers near the coast and snow showers elsewhere during the rest of
the day.
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12 minutes ago, weathermedic said:

OKX's take on Sun-Mon from their morning AFD:


Global models still disagree with the storm track for Sunday night
into Monday morning, with GFS taking low pressure from the Mid-
Atlantic to fairly well SE of the 40N/70W benchmark. The GFS
ensemble mean however is approx 50 miles SE of the benchmark, so it
wouldn`t be surprising to see the deterministic GFS eventually trend
back towards the benchmark in future model runs. ECMWF, its ensemble
mean, and GEM track the storm within the benchmark. Will lean
towards this solution, but not as NW/warm. Still, rain would be
likely for coastal areas, and a wintry mix would occur inland with
the potential for an all-snow event for the far NW suburbs. PCPN
would taper off Monday morning with isolated/scattered rain and snow
showers near the coast and snow showers elsewhere during the rest of
the day.

With the benchmark track like they'e saying and a fresh arctic airmass that wouldn' be rain in my opinion. Especially if most of the precipitation comes in at night time. That' just from my personal experience. We can taint a little but it would turn into snow especially if the low is strengthening.

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4 minutes ago, WeatherFeen2000 said:

With the benchmark track like they'e saying and a fresh arctic airmass that wouldn' be rain in my opinion. Especially if most of the precipitation comes in at night time. That' just from my personal experience. We can taint a little but it would turn into snow especially if the low is strengthening.

I agree. Guess they are playing it careful this far out for now.

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47 minutes ago, weathermedic said:

OKX's take on Sun-Mon from their morning AFD:


Global models still disagree with the storm track for Sunday night
into Monday morning, with GFS taking low pressure from the Mid-
Atlantic to fairly well SE of the 40N/70W benchmark. The GFS
ensemble mean however is approx 50 miles SE of the benchmark, so it
wouldn`t be surprising to see the deterministic GFS eventually trend
back towards the benchmark in future model runs. ECMWF, its ensemble
mean, and GEM track the storm within the benchmark. Will lean
towards this solution, but not as NW/warm. Still, rain would be
likely for coastal areas, and a wintry mix would occur inland with
the potential for an all-snow event for the far NW suburbs. PCPN
would taper off Monday morning with isolated/scattered rain and snow
showers near the coast and snow showers elsewhere during the rest of
the day.

Well if Upton thinks a strengthening storm is running the benchmark with arctic air flooding in, they might as well pull the trigger and call for a snowstorm Sunday night into Monday. I don’t why they are dancing around it and mixing words if they believe that’s what is going to happen 

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28 minutes ago, snowman19 said:

Well if Upton thinks a strengthening storm is running the benchmark with arctic air flooding in, they might as well pull the trigger and call for a snowstorm Sunday night into Monday. I don’t why they are dancing around it and mixing words if they believe that’s what is going to happen 

Let's see:

1) Because there is still plenty of doubt in the outcome. 

2) It's 96 hours away. 

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