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February 16-17, 2024 | NE / Mid-Atlantic Winter Storm


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1 minute ago, Wtkidz said:

Current surface and radar.. 

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There she blows with the force of a thousand winds!😄... and the speed to match

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5 minutes ago, Paletitsnow63 said:

🤔  Makes me wonder if the SLP is modeled this far north and down to a 997 MB if there is a chance of enhanced snow for a few hours in the area circled in red.  Above and beyond what is modeled here.   Maybe SLP is just moving too fast for that.

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Yes, speed kills in this scenario. 300mb winds seem far too swift for this to stick around to consolidate

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51 minutes ago, Undertakerson2.0 said:

Past 3 NAMs

BOOM the latest one. 

trend-nam-2024021612-f024.snku_acc-imp.us_ma.gif

3K seems a tad dryer but the theme of stronger and  more precip comes through 

.4-.5" QPF being modeled I would expect ratios to be anywhere from 12:1 to 15:1 (some areas on the north side may push 20:1) so we could start seeing warnings flying soon.

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Just now, MDBlueridge said:

Screenshot_20240216_095233_Chrome.jpg

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6 inches. The highest totals are most likely under heavier snow bands and for elevations above 1000 feet where isolated totals to 8 inches are possible. * WHERE...In Maryland, Frederick MD County. In Virginia, Western Loudoun County.

You win again!!!

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1 minute ago, Rush said:

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6 inches. The highest totals are most likely under heavier snow bands and for elevations above 1000 feet where isolated totals to 8 inches are possible. * WHERE...In Maryland, Frederick MD County. In Virginia, Western Loudoun County.

You win again!!!

Lol well see. Lift always seems to help, especially with storms from the west, south, east or north. Haven't seen your mountain snow gif yest this year. 

I like valleys odds with this one. Cold will be there. 

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Just now, MDBlueridge said:

Lol well see. Lift always seems to help, especially with storms from the west, south, east or north. Haven't seen your mountain snow gif yest this year. 

I like valleys odds with this one. Cold will be there. 

Yeah I feel confident in enough to cover the grass and sled on.  Maybe push my seasonal total up to 15".  Half way to average.  Only hit average once in the 5 years I've lived here.

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6 minutes ago, so_whats_happening said:

.4-.5" QPF being modeled I would expect ratios to be anywhere from 12:1 to 15:1 (some areas on the north side may push 20:1) so we could start seeing warnings flying soon.

Was wondering if they will update WWA to WSW here. Its gonna be close - they for sure will want to see more from the 12z suite until they pull any changes I would imagine. 

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1 minute ago, Rush said:

Yeah I feel confident in enough to cover the grass and sled on.  Maybe push my seasonal total up to 15".  Half way to average.  Only hit average once in the 5 years I've lived here.

It has been a rough stretch for the valleys. This season has had some fun. And maybe a couple more in the hopper. I hope this one produces for you, cumberland valley etc 

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Shame the temps across MD at 700mb aren't cooler (-8 to -10) but nice VV's across mush of the region. Would be damn near perfect around -12C but that is up by the border so slightly misplaced, per model, of VV's to best DGZ.

floop-nam-2024021612.700hvv.us_ne.gif

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NWS has literally been increasing the expected snow totals inch by inch the past 24 hours for north-central MD. Winter storm warning now calling for 4-8. If we get 4 inches out of a fast moving clipper that’s a great day. Over 4 inches will bonus time! 
If you are in the path of this one, good luck, enjoy. If not, let’s hope next one has your name on it. 

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They callin this a clipper but it's not really. It's more of a hybrid between a clipper and a standard over-running event. Clips don't often get ANY help from the S jet and this, as we've shown, gets a piece of the STJ moisture. If it were slower and "diggier" we'd be talking much longer. It is "easier" to explain it as a Clipper though 

All things considered though, yes - anything over 6" has got to be considered overperformer for so swift a progression. 

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image.thumb.png.ff57fd25f196a9e9c61c0a522b1056a3.png



Spoiler

Day 1... A positively-tilted mid-level trough shifting from MN through the Great Lakes tonight combines with a shortwave trough from the central Plains to promote development of a surface low currently over the southern Plains as it moves over Tennessee today and the southern Mid-Atlantic tonight. To the north of this low, a transition from rain to snow will occur deeper into the colder air, with banded snow aided by an advancing arc of FGEN that will promote increasingly moderate snow bands this morning over northern Missouri and central Illinois/Indiana and then this evening over the central Appalachians, then overnight along the Mason-Dixon line to central NJ. SLRs will trend from near/below 10:1 near the low to over 15:1 well into the cold side where more energetic lift into a favorable DGZ occurs. Day 1 PWPF for >4" snow are 40-70% north of St Louis from northeastern Missouri through central Illinois along I-72. Values decrease to 20-30% across central Indiana along I-74/70 before diminishing over southern Ohio. However, PWPF rapidly increases east from the Ohio River over West Virginia, western Maryland and into the Laurel Highlands where values for >6" are 40-70%. An axis of heavier snow is likely in this zone with the ridges east of the Allegheny Front to the Blue Ridge in Virginia most likely to see 6" tonight. This fast moving system, riding a 175kt+ Wly jet redevelops over along the North Carolina/Virginia border overnight before it quickly shifts east of the southern DelMarVa Peninsula. PWPF for >4" are 40-60% extend east mainly on the north side of the Mason-Dixon line through the Philly metro and into central NJ where the most favorable FGEN and dendritic growth persists. Just south, 20-40% probs do extend over northern Virginia/central Maryland and northern Delaware where more progressive, but still locally heavy bands are expected north of the low center.

 

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