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December 11-12th, 2022 | Mid Atl/ NE Snow event


HVSNOWSTORM

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I was just about to start a thread.

There's a piece of energy that breaks off the Hudson Bay trof and tries to mingle with the shortwave cutting through the ridge. 

  The GFS is just now picking up on it. All models have been too fast with longwave pattern progression. Rotate everything back a few degrees, and there's a window.

gfs_z500a_namer_fh126_trend.gif.501688e0b7ece5e543fbb98882c0aaaa.gif

  It also means there's more traffic in the NW Atlantic, which would help out with the subsequent trof.

 

500hv.conus (2) (30).png

500hv.conus (2) (29).png

500hv.conus (2) (28).png

500hv.conus (2) (27).png

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1 minute ago, MaineJay said:

I was just about to start a thread.

There's a piece of energy that breaks off the Hudson Bay trof and tries to mingle with the shortwave cutting through the ridge. 

  The GFS is just now picking up on it. All models have been too fast with longwave pattern progression. Rotate everything back a few degrees, and there's a window.

gfs_z500a_namer_fh126_trend.gif.501688e0b7ece5e543fbb98882c0aaaa.gif

  It also means there's more traffic in the NW Atlantic, which would help out with the subsequent trof.

 

500hv.conus (2) (30).png

500hv.conus (2) (29).png

500hv.conus (2) (28).png

500hv.conus (2) (27).png

You can see the trend in the NAtl the last 2 runs of the Gfs which have aided in made this into a potential snow threat. Cmc was first to advertise this snow threat I might add.

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8 minutes ago, HVSNOWSTORM said:

You can see the trend in the NAtl the last 2 runs of the Gfs which have aided in made this into a potential snow threat. Cmc was first to advertise this snow threat I might add.

Gonna have to watch how that little PV lobe behaves. It'll likely help keep some warmth at bay, as it tries to knock down the ridging ahead of the advancing systems.  The bigger question is, will it help snow chances.  Right now it's just not far enough west for a big storm for us.

gem_z500_vort_atl_fh48-240.gif.673c0c958860b4b250ae1f8b95e1e8b3.gif

The models have struggled mightily, and with such weak steering, they might even struggle more.

2113730949_TSER_PMSL_MRDG_DAY5_ANOMCORR(1).gif.cce9bf6b3efae2ff36d7a5119d3039bb.gif

We'll keep taking our shots.

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1 hour ago, MaineJay said:

Gonna have to watch how that little PV lobe behaves. It'll likely help keep some warmth at bay, as it tries to knock down the ridging ahead of the advancing systems.  The bigger question is, will it help snow chances.  Right now it's just not far enough west for a big storm for us.

gem_z500_vort_atl_fh48-240.gif.673c0c958860b4b250ae1f8b95e1e8b3.gif

The models have struggled mightily, and with such weak steering, they might even struggle more.

2113730949_TSER_PMSL_MRDG_DAY5_ANOMCORR(1).gif.cce9bf6b3efae2ff36d7a5119d3039bb.gif

We'll keep taking our shots.

Big storm would be great but I'll take 2-4"/3-6" and be thrilled for now. Might be a little tougher up your way. But we watch and see

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  • The title was changed to December 12-13th, 2022 | Mid Atl/ NE Snow event
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17 hours ago, MaineJay said:

Gonna have to watch how that little PV lobe behaves. It'll likely help keep some warmth at bay, as it tries to knock down the ridging ahead of the advancing systems.  The bigger question is, will it help snow chances.  Right now it's just not far enough west for a big storm for us.

gem_z500_vort_atl_fh48-240.gif.673c0c958860b4b250ae1f8b95e1e8b3.gif

The models have struggled mightily, and with such weak steering, they might even struggle more.

2113730949_TSER_PMSL_MRDG_DAY5_ANOMCORR(1).gif.cce9bf6b3efae2ff36d7a5119d3039bb.gif

We'll keep taking our shots.

It just completely hammers the first wave friday with nothing more than a few showers/ snow showers. Allows at least the second wave for sunday/monday to be something. I wanna say it may take a further SW look than SE NY but we shall see. Cool little nugget of energy.

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5 hours ago, so_whats_happening said:

It just completely hammers the first wave friday with nothing more than a few showers/ snow showers. Allows at least the second wave for sunday/monday to be something. I wanna say it may take a further SW look than SE NY but we shall see. Cool little nugget of energy.

CMC trend shows how their relationship has evolved.

gem_z500a_eus_fh108_trend.gif.5ad8fe592ac12ce7bcf775d3dfe738c3.gif

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20 minutes ago, JDClapper said:

Euro, NAM and RGEM give mets cover to tell people to relax.. GFS and CMC the most stout and impactful, snowwise.

 

namconus_z500_vort_eus_53.png

rgem_z500_vort_eus_85.png

gem_z500_vort_eus_16.png

ecmwf_z500_vort_eus_31.png

gfs_z500_vort_eus_15.png

Gfs most amped with jackpot area around 10". Rest of the gang a solid 2-5" with maybe some 6" lollis 

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