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March 3-4, 2023 | NE. Winter Storm


MaineJay

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In like a lion?  Active pattern continues, so many waves, almost like they are taunting the snow starved.  Is it a perfect  setup, no. Is the sun angle rising, yes.  There's always going to be something to nit pick.

 There's a little shortwave that slides through before this, and spacing with the subsequent larger wave will determine the baroclinic zone and track.

 Enjoy.

Operational models are similar.

ecmwf_T850_us_65(1).thumb.png.0d0c45f739713f1185fe94262a6f57eb.png

gfs_T850_us_41.thumb.png.f5e62b40e4335c59d06e02458213dc1a.png

EPSeps_lowlocs_us_40.thumb.png.c7c09feedd7e860a685692f849b027ae.png

GEFS

f204(2).thumb.gif.1e4531caa292f4091ebac1dc6faf2712.gif

 

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Overnight EPS looks decent...a little height rise out in front, but not too much. Can see a little confluence pushing back on it across New England. Would be nice to get an actual coastal storm...

Screen Shot 2023-02-23 at 10.59.17 AM.png

Edited by telejunkie
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Euro op really wants to send this one up into the lakes....still not much support among ensembles for that track and height rise out front. GFS is it's closest ally. CMC seems to be closer towards guidance at h5....we'll see. Either way, we'll be depending on downstream support to suppress that height rise.

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  • The title was changed to March 3-4, 2023 | NE/Mid-Atl Winter Storm Speculation
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28 minutes ago, Uscg Ast said:

I Don't like the progression currently. This is dangerously close to being another cutter if the Confluence slows up. We have already seen the GFS go from nearly suppression to an I-95 hit, to now well inland. 

Where as Euro went from cutter to suppression last night. We need that downstream support and Hudson Bay vortex to keep this from cutting....if it doesn't then most of us 🔥. Seems like the story of this winter....

That said, ensembles are keeping height rise along the EC ahead of the wave to a minimum....so crossing fingers the mean is the right path with this one.

Screen Shot 2023-02-24 at 12.08.22 PM.png

Edited by telejunkie
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16 hours ago, Uscg Ast said:

I Don't like the progression currently. This is dangerously close to being another cutter if the Confluence slows up. We have already seen the GFS go from nearly suppression to an I-95 hit, to now well inland. 

Looking at the latest guidance, the GFS tendency to now over amp systems might be at play.  Still 6-7 days out, so I'm not ready to make definitive statements, but I don't think it cuts.  Running up the coastal plain I think more likely, and there's a lot of suppression in some modeling.

Average these and a low INVOF the DelMarVa seems like the bet.

 

eps_lowlocs_eus_29.png

 

gfs-ememb_lowlocs_eus_29.png

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The good news for us southerners is the Euro and CMC are keeping this thing suppressed and south.  Too far south, but that's better than being to far north.  If they looked like the GFS I'd be throwing the towel.

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16 minutes ago, MaineJay said:

GFS looks like a beast

gfs_z500_vort_us_24(2).thumb.png.77be48151617da72f50106e5acedb090.png

Great lakes express

EDIT: Granted this is not as likely as outcome as it would have been before. The GFS has been the most inconsistent and small little players make a huge difference hear. The S/W ahead of it and the height fields on the EC will all make huge differences with very minor changes. 

We will see. 

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This looks like a fun forecast.  The obvious call is to push it further north.

trend-gefsens-2023022500-f168.sfcmslp-meanmem.conus.gif.45e0f85180b55c8660db4d3984cfe963.gif

 

EPS so far

trend-epsens-2023022500-f168.sfcmslp-meanmem.conus.gif.6d87ed834174a892043d47f579d67072.gif

0z EPS typically leads - last 90 days it's beating the WPC

image.thumb.png.868f7f6b2480b3adc113a783d3571501.png

 

Speaking of WPC - here's their guess - either benchmark or just inside.

image.thumb.png.5ed09c51c7dd6e3280b8ae37314b9178.png image.thumb.png.8a45579e377c70f019e00c648795e05d.png

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